Setsuna F. Seiei

Setsuna F. Seiei (刹那・F・セイエイ) is his Gundam Meister codename. He's the pilot to Gundam Exia and the main protagonist of the story in Gundam 00.

Personality
He can be described as taciturn and a introverted person. He tends to reside in Japan, alone, when not on Celestial Being duties. He believes there are key disturbances that affect the world from coming together in peace/harmony. He labeled specific people and/or forces a source of conflict towards the world's path to peace. He has little tolerance for diplomats and politicians, believing that their "peace talks" only prolong wars and cause more strife. He's got a vendetta to settle and his past battle experiences stirs old bitter feelings, increasing his combat potential (as a beneficial side effect). Though a self proclaimed atheist, he often questions the motivations of God with people and worldly events. He idolizes the Gundams so much that he wants to embody Exia as himself, a Gundam. He's a traditionalist in honor and a martyr for his cause in Celestial Being.

In a letter to Marina Ismail, he revealed more in depth into his feelings and thinking. Setsuna wanted to understand the lesser aspects of humanity. He wanted to know why the world is filled with people with innate dark intentions and inconsiderate of other people's suffering. He wanted to find these answers with his Gundam in hopes to bring mutual understanding and peace.

His name could also be denoted to state his personality. Translated it could mean To obtain the moment. As it is (Seiei Setsuna (セイエイ・刹那) because last names come first traditionally)

Youth in Azadistan
When Soran was young, he was a child guerrilla in the Republic of Krugis. Soran joined the Kurdish anti-government guerrilla organization, KPSA (the same group that killed Lockon’s parents and younger sister). He murdered his own parents under Ali Al Saachez's divine influence in order to prove his devotion to God (although he now claims to not believe in any God). During a losing battle against Azadistan's mobile suits, his life was saved by GN-000 Gundam O.

Joining Celestial Being
Having been discovered by Celestial Being at the age of 14 (for potential as a pilot), he became a Gundam Meister for their organization. The 3 Meister's had their doubts about Setsuna due to the fact he's considerably young. Lockon Stratos on the other hand didn't mind the age difference and even look forward in working together. After nearly two years of training and planning, Setsuna and Exia were the the first to reveal themselves to the world at the debut of AEU's Enact.

Debut at AEU
Patrick Colasour was displaying the capabilities of AEU's new Enact when Exia/Setsuna descended upon the demo. Setsuna's mission is to display the capabilities of Exia as well as showing the deficiencies of the new enemy unit. Patrick was eager to prove his strength against the intruding mobile suit and drew his sonic blade at Exia/Setsuna. Exia made quick work of the Enact as Exia's GN Blade cut off all of the Enact's limbs. Setsuna then flew off to his second assignment, exposing AEU's violation of international treaty.

AEU made international treaty agreements to only have a certain amount of military force for their orbital elevator, but kept more than allowed in secret. Setsuna/Exia and Lockon/Dynames was assigned to expose their military force violations to the world. While fighting with overwhelming numbers, Lockon/Dynames provided fire coverage from below to help Setsuna in combat.

Everyone at the AEU demo thought the Gundam was of Union or HRL origin, but was later revealed by a pre-recorded message from Aeolia Schenberg that the Gundams are part of new faction, Celestial Being.

Ceylon
There has been war at Ceylon (formally Sri Lanka) for over a century between two warring ethnic parties. All the Gundam Meister's sortied to Ceylon for their second mission. As they were about to approach the coast, Lockon wanted to check-in with Setsuna, but his mind drifted towards past horrors during his youth in the Republic of Krugis as he watches live combat at Ceylon. Setsuna flew ahead of everyone, eager to end the fighting and engaged the mobile suits while Dynames/Lockon provided cover fire. After heavy combat ended, two mobile suits still remained and thought the Gundams did a huge favor for them and went off to eliminate the fleeing enemy. Just as they passed by Exia, Setsuna/Exia finished the remaining two units and flew back to base ahead of the other Meister's.

Setsuna and the rest of the Gundams/Meister's were heading back to their respective locations when Graham Aker appeared in his Flag. Graham thought he could capture Exia/Setsuna; Setsuna was able shove off the Flag and knocked off the sonic blade from the Flag's right hand. Graham/Flag tried to shoot Setsuna/Exia with his rifle, but Setsuna/Exia destroyed the rifle with his beam saber and forcing Graham/Flag to withdraw.

In a separate intervention, the Gundams were assigned with individual missions vs group missions. Setsuna was assigned to eliminate a remaining military base at Ceylon when he was attacked by HRL's Sergei Smirnov. Sergei wanted to test the Gundams capabilities and engaged Setsuna/Exia in melee combat. Sergei's Tieren grabbed Exia's head and attempted to crush and rip Exia's neck. Exia/Setsuna managed to grab his beam saber and slash Sergei's Tieren into pieces and left back to Japan.

Taribia Republic
Taribia Republic announced their withdraw from the Union. They were close to the orbital elevator and made a gambling bet that the Gundam Meister's would be lured to their country and even defend them should Union forces intervened. Celestial Being long caught on to this form of manipulation and attacked Taribia forces. Setsuna/Exia attacked all mobile units near the ground while the rest fired from above. Their intervention forced the president of Taribia to rejoin the Union, thus Celestial Being restored political and military ties between the two parties. Soon as Taribia rejoined forces with Union, the Gundams made a tactical retreat.

While retreating from Taribia, Graham Aker appeared once again in his recently modified Custom Flag. He tried to shoot Exia down, but Exia retreated by going underwater. Graham's Custom Flag wasn't water proof and couldn't follow.

Moralia
PMC Trust/Moralia was taking arms with AEU forces to counter the Gundams. Setsuna along with the rest of the Meister's were sortied, citing PMC Trust/Moralia as a source conflict.

While taking armed intervention, Ali Al-Saachez appeared in a Enact. Setsuna noticed the pilot of Enact combated too similar to Ali to be a coincidence, Setsuna had to confirm was it Ali and had him exit the cockpit. Setsuna exited his own cockpit and was angered when he confirmed his suspicions, it was indeed Ali Al-Saachez. He wanted to shoot him, but Lockon/Dynames intentionally fired several missed shots to have Ali return to his Enact. Ali ran away before Setsuna could settle his score.

Setsuna's brush with Ali affected the mission and forced Sumeragi to accelerate their plans to the last phase, phase six. Their final phase involves the Gundams infiltrating deep into enemy territory to destroy Moralia's command center. While the Gundams were flying inside a canyon to infiltrate Moralia Command HQ, Setsuna was thinking about the sudden appearance of Ali Al Saachez. He questions the whereabouts of Ali's God and his beliefs when Tieria Erde had a private communique with him. Tieria Erde warned Setsuna that if he broke the code of a Meister again, he would shot him in the back for the sake of Celestial Being.

After they exited out of the canyon, they quickly attacked Moralia Command. In less than 5 minutes of their assault, all mobile units were wiped out. Moralia Command couldn't defend themselves any longer and fired a white flare to signify their submission to Celestial Being. Because Celestial Being have no interest in conquering nations, they left back to their island hideout.

Setsuna never explained his reasons for endangering himself and the mission by pulling such a stunt. Lockon punched Setsuna down to the floor, demanding an explanation for his actions in Moralia, but he didn't say a word. Tieria drew his gun to force an answer (with the intention of silencing him) and Setsuna drew his gun right back at Tieria.

Setsuna said he has no intention of leaving his Gundam. Alleujah interjected and reminded Tieria that Veda chose all of them and believes there was a reason for choosing Setsuna, Tieria withdrew his gun. Tieria wanted Setsuna to show him why was he chosen as a Gundam Meister. The situation was never resolved as there was a sudden news of a terrorist attack from Ian Vashti.

Investigating La Eden
La Eden committed a series of terrorist bombings to blackmail Celestial Being. They sent a message throughout the networks to warn Celestial Being to disarm themselves or repeated attacks will occur indefinitely. Though La Eden committed these acts of violence, they never gave away the name of their organization. The Meister's had to investigate into the matter to find out the perpetrators. Setsuna was assigned to investigate a terrorist bombing in Scotland.

It was while he was investigating La Eden in Scotland (AEU), that he encountered Marina Ismail. He was chasing a suspect on motorcycle and couldn't shoot him down. The local police came and was about to take in Setsuna for questioning when Marina used her diplomatic credentials to claim he's with her party and he was let off. Marina only helped Setsuna because she thought he was a fellow Azadistan citizen. Setsuna identified himself as Kamal Majirif and Kurdish, she felt awkward after hearing his origin. Setsuna wanted to leave, but Marina asked him to stay to talk a little longer, he stayed and listened.


 * Although technically from Azadistan, it's only because Azadistan forcefully incorporated the Republic of Krugis into their territory. Those that couldn't conform to the Azadistan government, raised Jihad or started their own conservative political movement against the Azadistan government. Strong tensions still exist between the Kurdish and Azadistan people (religiously, politically, historically).

Marina confided to Sestuna that she's worried about economic and political instabilities of her country might draw the attention of Celestial Being. She felt that Celestial Being were a bunch of extremists that would use force than negotiations. Setsuna responded that it was Azadistan that destroyed the Republic of Krugis. She acknowledged what her country did, but reminded him both sides tried to resolve things peacefully. Setsuna in anger reminded her that people died as the politicians talked.

Marina wondered did he fought in the Krugis/Azadistan conflict six years ago and Setsuna said "I'm still fighting, even now." His words frightened her, thinking he's part of the conservative party and might kill her. He told her killing her won't change anything and he revealed himself as a Gundam Meister and his code name: Setsuna F. Seiei. Setsuna warned her that if fighting continues that Celestial Being will pay a visit to Azadistan and left her frightened to the ground.

Eliminating La Eden
During Setsuna's chat with Marina, Wang Liu Mei and Hong Long tracked identified La Eden and their whereabouts. After Setsuna left Marina, he was assigned to eliminate one of their mobile terrorist cells in the Atlantic. Exia/Setsuna attacked the suspected La Eden ship and sank it. As the boat was sinking, Exia was grabbed underwater by a old submarine mobile armor. Exia shielded against the barrage of torpedoes and finished the mobile armor with its beam sabers.

As Marina continues in her political tour for economic and food aid for Azadistan, she reflected back to Setsuna's words. Marina smirked it off, dismissing Setsuna's warning as a bad joke. Suddenly Setsuna did a flyby with Exia right over Marina's plane, looking down at her and flew away.

Close Call with HRL
HRL launched a series of e-sensors in space to detect the whereabouts of Celestial Being. Setsuna just returned to Ptolemy for maintenance over Exia and was given a passive aggressive greeting with Tieria Erde. As they both eat lunch, it was a tense moment between the two and Christina Sierra couldn't eat between the two. By the time Christina noticed they were detected, HRL already launched several carriers and Tieren mobile units against them.

Setsuna/Exia and Lockon/Dynames was assigned to engaged the incoming force while Allelujah/Kyrios and Tieria/Virtue engaged side groups to prevent a pincer attack from several sides. Setsuna/Exia dealt with a large group of Tierens while Lockon/Dynames shot down as much as they could. In the end the Gundams prove to be too much for HRL forces to handle and Sergei Smirnov decided on a tactical retreat while they still can.

Return to Azadistan
It wasn't long Setsuna lived up to his words as he entered Azadistan. Rasa Massoud Rachmadi is an imam that was captured by unknown assailants, attempting to topple the already unstable political situation in Azadistan. Ali Al-Saachez was actually the one who was hired to incite civil war between the reformists and conservative parties. Setsuna volunteered for the mission since Azadistan is his hometown.

The Union dispatched their own anti-Gundam team into Azadistan as they bet the Gundams are likely to appear in this political hot-spot and doubled as Azadistan's military aid. Graham and Billy bumped into Setsuna as he was investigating the local area and Graham intentionally clued Setsuna (suspecting he's from Celestial Being) off about Ali's Enact. Suspecting it was the work of Ali Al Saachez, Setsuna headed to his old Kurdish homeland to find Rasa Massoud Rachmadi.

Ali Al-Saachez always suspected that Setsuna was one of the Kurdish kids he formally trained into a jihadist. His suspicions were confirmed when Setsuna found their secret hiding place and fought. While engaging Ali/Enact, Setsuna asked his reasons for coming back since the Republic of Krugis is gone and "Where is your god!?" Setsuna damaged Ali's Enact rifle, but Ali pinned Exia down on the ground and tried to tear open the cockpit. Setsuna/Exia managed to cut off his Enact's right arm and Ali flew off. Setsuna was only a distraction while Lockon intercepted the fleeing group with Dynames.

Rasa Massoud Rachmadi was rescued and sent back to the palace where Princess Marina Ismail resides. Setsuna entered unarmed with Exia and at first received several shots from extremists and local defense mobile suits. They eventually cleared out of his way and he dropped off Rasa Massoud Rachmadi. Marina Ismail went to confirm was it truly Setsuna and he warned her they might return again. His final words to her was to fight for the sake of her God and flew away. Graham and his team wanted to capture him, but Graham felt by doing so would only create international political complications and let him off.

Near capture in Taklamakan Desert
A war exercise was being performed by HRL, AEU, and Union for convert operation in capturing the Gundams. It's publicly announced to be a war exercise, but it was a trap. Even though the Meister's fully knew that what they were about to intervene was a trap, they entered the Taklamakan Desert, knowing they might be captured or killed.

Exia and Virtue were paired together while Dynames and Kyrios teamed up for aerial entry of the battlefield. While Sumeragi gave the Meister's as much plans as possible to counter the combined forces of the 3 world powers, they were worn out from excessive engagements. Ultimately all the Gundams were captured and Exia was pinned down by the mobile armor Agrissa, piloted by Ali Al Saachez.

Gundam Throne Rescue
Agrissa/Ali deployed a plasma field to torture Setsuna and almost died from excessive electrical shock when Gundam Throne Drei appeared. Setsuna was surprised by the appearance of a Gundam he has no knowledge of. They returned to the Ptolemy, they questioned if they are members of Celestial Being as they never heard of their existence.

Team Trinity
The Meister's were given coordinates for a meeting by the Throne Gundam Meister's and they agreed to meet on board the Ptolemy. The Trinity Siblings confirmed they share their objectives about ending all conflict. Nena wanted to find out who was the pilot of Exia, Setsuna identified himself as the pilot and Nena went at him for a kiss. Setsuna didn't react well to Nena's kiss and shoved her away. Tensions raised when Michael came to defend his sister and pulled out a sonic blade. Johann had to control Michael to calm the situation down. The Trinity's gave limited information about themselves besides sharing their ideals and running missions independent of theirs. Setsuna wonders if they are true Gundam Meister's, Tieria also concur with Setsuna's suspicions.

The Gundam Meister's held back and allowed Team Trinity perform their missions; Setsuna became more and more dissatisfied as they indiscriminately hurt civilians and execute total annihilation tactics in their missions. Setsuna and his group became more suspicious when they discovered their GN Drives are considered imitations and not real "solar furnances." The last straw for Setsuna was when Nena indiscriminately attacked Louise's family. He sortied Exia and identified the Throne Gundams and Meister's a source of conflict.

War against the Trinity's
While the Trinity's were flying to their next mission, Setsuna fired three unwarned shots at them. He cited them as sources of conflict and aimed at Throne Drei, but Throne Zwei intervened and fended him off. Johann tried to reason with Setsuna, but Setsuna doesn't recognize them as true Gundam Meister's and Johann had Michael retaliate. Michael launched 6 of his GN Fangs, but Setsuna destroyed them all with his GN Blades. Michael had 2 GN Fangs reserved and launched them. Setsuna wasn't able to anticipate them, but then a powerful GN particle blast wiped the last two. The blast came from Virtue and Tieria decided to team up against the Gundam Thrones.

While fighting, it was the first time Exia and Virtue to execute battle formations (as the pilots never once got along). Virtue engaged Drei and Eins while Exia engaged Zwei. It wasn't long that Dynames entered the fight and the Thrones decided to regroup and retreat. Before they retreated though, Johann revealed classified information pertaining Lockon's and Setsuna's past. Johann revealed to Lockon that the very group that were responsible in his family's death is also linked with Setsuna. Johann explained that Setsuna was really Soran and that he was once part of the same terrorist group that killed his family, KPSA. The Throne's flew off, but left Lockon angered against Setsuna.

The three Gundam Meister's had a personal chat, with Lockon pointing a gun at Setsuna. Lockon wanted a good explanation behind Setsuna's past and a reason not to kill him. Setsuna revealed that he was formally trained to be a guerrilla by Ali Al Saachez, leader of KPSA. He admitted at that time he was immersed in his own world of God, but now no longer believes in God in this world. He explained that time when he exited out of his cockpit in Moralia was to confirm Ali and wanted to know if there was God within him. Lockon wanted to know what are Setsuna's future plans and his intentions with Exia. He reaffirmed that he believed in their cause and wouldn't mind if Lockon killed him if he continued their goals to end conflict. Soran wanted to continue to be a Gundam Meister, Setsuna F. Seiei, for he is a "Gundam." Lockon withdrew is gun because he couldn't shoot a dumbass like him, a "stupid Gundam." Setsuna considered that as praise and the three Meister's shared a good laugh.

Operation Fallen Angels
The 3 world powers (AEU, Union, and HRL) were brought down to their knees. They no longer had the necessary ability to face the Gundams and the 3 world powers reluctantly considered the idea of surrendering to Celestial Being. The Celestial Being traitor, Laguna Harvey, contacted the 3 world powers to obtain 30 GN-X's in Antarctica. With these new mobile suits in their hands, the world governments united their military might as the UN Forces, declaring their united objective of taking down Celestial Being. They called their plan Operation Fallen Angels.

UN Force Counteroffensive
The UN Forces quickly made use of their GN-X's. They managed to fend off Team Trinity. The Gundam Meister's and the crew of the Ptolemy were surprised that GN technology fell into the world's hands. The UN Forces now are on the offensive against Celestial Being. It wasn't long Ptolemy was also targeted and the Meister's sortied to defend their ship. While fighting, their Gundams suddenly shutdown. They didn't know that Alejandro Corner had Ribbons Almark take control of Veda during their battle. Sumeragi was able to anticipate such an event and switched their Gundams to independent OS (vs linked to Veda). Setsuna cried out for Exia to activate and Exia reactivated. He was able to fend off the GN-X's to a tactical retreat, but the battle wounded Lockon and badly damaged Dynames.

While Curse Jinx Squad was confronting Team Trinity, Setsuna on board Ptolemy wondered if how things are happening is considered right. He observes that the Trinity's and the UN Forces were only increasing conflict. Setsuna wanted to confirm the state of things and decided to head down. Lasse Aeon teamed up with Setsuna for the first time, riding the GN Combat (or Assault) Container for atmospheric re-entry.


 * During Setsuna's entry to earth, Ali Al Saachez appeared before the Trinty's claiming to be an ally. When Johann asked about Laguna Harvey, Ali responded with a gunshot. He killed Micheal with a handgun and subdued Johann. Ali wanted to fight Johann in mobile suit combat and let him off to pilot Gundam Eins. Ali somehow bypassed the biometric scanner of Throne Zwei and used Zwei against Eins. Johann suspects he somehow altered the system as only Michael was able to pilot Zwei, he destroyed Johann/Eins.

Ali was about to finish off Nena when Setsuna intervened. Setsuna was surprised to see that Ali somehow got his hands on a Gundam and the two fought. Even though Exia was well armed, Ali still managed to defend himself against Setsuna very well. During this time, Alejandro Corner was putting his final plans into work to control Veda and just killed Aeolia Schenberg. Schenberg's "system trap" activated and removed the limiters on Exia to execute the Trans AM system. Just as Ali was about to strike Exia from behind, Exia goes into a high speed frenzy. Exia's Trans AM was too much for Ali and he fled.

Setsuna reported his findings to the rest of the crew and headed back to Ptolemy. It was around that time that the UN Forces attacked again with their GN-X's. Setsuna was returning to space while the rest of the Gundams were busy with UN Forces. By the time Setsuna returned to space and sortied, the battle was near end. He went into Trans Am mode to make up lost time and found Lockon Stratos floating in space. Setsuna tried to rescue him, but the damaged GN Cannon nearby exploded and killed him. Setsuna was distraught over Lockon's death, but returned to Ptolemy to prepare for another round against UN Forces.

Tieria was distraught at Lockon's death and blamed Setsuna for heading to Earth and not making it back in time to save Lockon. Sumeragi had to settle things down between the two as they need to prepare for another fight. It was while looking over tactical data over Lockon's final moments that he realized that Lockon died in his quest for revenge against Ali Al-Saachez. The crew got ready for battle, but to their surprise a golden GN Mobile Armor with 7 GN T(au) Drives appeared (GNMA-XCVII Alvatore). Sumeragi had Lasse and Setsuna to break through UN Force offensive line to destroy Alvatore.

While heading towards Alvatore, the mobile suit fired several shots of its particle beam cannon. The beams didn't destroy any of the Gundams or Ptolemy, but the shots damaged the Gundams and Ptolemy enough to help UN Forces destroy them (Ptolemaios, Kyrios, and Nadleeh). All the Gundams have now been damaged beyond repair, only their GN Drives survived.

Last Stand
The only team still able to fight was Lasse Aeon in GN Arms and Setsuna in Exia. During the early part of the battle, they breached through the UN Forces's offensive line with the Combat (or Assault) Container to deal with Alvatore. They blasted the Alvatore with their GN Cannons at full strength, but the super GN Field was so dense and powerful that it repelled any incoming fire. Lasse rammed the container with GN Field against GN Field in hopes to penetrate deep enough to damage the mobile armor, but to no avail as the mobile armor unleashed its grappling arms, splitting the hull apart. Lasse had to eject the container with Setsuna for MS against mobile armor.

Lasse and Setsuna doubled teamed against Alejandro, but couldn't penetrate the super GN Field. Alvatore deployed its own version of fangs against Setsuna. Lasse switched to GN Armor and Exia docked for a mobile armor against mobile armor combat. In GN Armor, Setsuna and Lasse was able to destroy all Alvatore's Fangs and disable  Alvatore's grappling arms. Alvatore severely damaged the GN Armor section (Lasse Aeon is presume dead) and Setsuna rammed the GN Blade of GN Armor and disabled Alvatore's GN Field. Without the GN Field in the way, Setsuna made quick work of Alvatore and destroyed the mobile armor.

Second Round
While Setsuna was trying to confirm Lasse's condition, a particle beam fired into his direction. The upper section of Alvatore's armor unfolded to reveal a mobile suit, the  Alvaaron. Alejandro ejected the lower section of Alvatore and engaged Setsuna in MS combat. While firing at each other, Alvaaron's wings shifted forward to charge GN particles to fire a powerful particle beam. Alejandro thought he vaporized Exia from the blast, but Setsuna survived by executing Trans Am. Setsuna was able to use its GN Sword to penetrate through Alvaaron's GN Field and damaged Alvaaron. Setsuna quickly cut through Alvaaron with all of Exia's blades, the suit soon overloaded and killed Alejandro in the explosion. Setsuna barely had a moment to rest when another GN mobile suit appeared.

Final Round
Graham Aker appeared in his GN Flag. Graham's flag was heavily modified to adapt to space combat as well as utilizing a GN Tau Drive. Graham engaged Setsuna to fulfill his vow of revenge for Howard and Daryl. Graham was able to cut down Exia's left arm and decapitate Exia's head. Setsuna too decapitated his GN Flag's head and cut off his lower torso and legs. In the final charge, both opponents severely damaged each other's suits and caused a massive red and green GN particle explosion. The result explosion didn't kill Setsuna, only temporarily knocked him out. As Setsuna/Exia gravitated towards Earth, Marina Ismail was reading a message she recieved from Setsuna.

Letter to Marina Ismail
Setsuna sent a message to Marina Ismail before the climatic battle between UN Forces and Celestial Being. As Exia/Setsuna floated in space towards the gravity of Earth, she reads the following:

Marina Ismail,
 * By the time you read this...I'm already gone. Armed interventions to put and end to war, I'm unable to do anything but fight for Celestial Being. You taught me what it means to fight back then, just like Gundam. I wanted to know why our world is so terminally distorted. Where did that distortion come from? Why there are people who are unconsciously evil? Why people don't know that their evil hurts others. Why is humanity an existence which only conflicts with itself? Why are there people who rule and those who are ruled? Why do we wound each other? In spite of all this, why do people go on living like they do? I wanted to ask you...please think of an answer if we may meet again. That being the case, I will seek out the same thing on a different path than yours. Down the path towards mutual human understanding for the answer. I'll keep looking for it, together with my Gundam.

Aftermath
In the aftermath of their great battle, Celestial Being lost contact with Setsuna. As far as the world is concerned, Setsuna and Exia were gone. Setsuna survived his battle with Graham and inexplicably decided to go underground with Exia, away from Celestial Being. He did his best to salvage Exia, using Tieren components to supplement his Gundam and continued to monitor the actions of the newly formed Earth Sphere Federation on his own until recently.

Colony Proud
The year is now 2312 (5 years later), the authoritarian Earth Sphere Federation has begun an aggressive campaign of unification through military force. The united and peaceful world never came, only evolved into another source of conflict. Setsuna sets out to Lagarange 4's space colony to reconnoiter their intentions.

Setsuna was investigating space colony Proud when A-Laws appeared and dropped automatons into the colony to kill everyone in the mining facility. While reconnoitering the Federation's operation in Proud, the colony was in destructive chaos as Katharon resistance was engaging A-Laws. Saji was pinned down by a automaton when Setsuna rescued him. Both of them were surprised to see each other again and ran for their lives as the automatons continued to hunt them. Setsuna ran into an airlock, where he intercepted Exia for mobile suit combat.

Setsuna/Exia engaged A-Law's latest mobile suits,GNX-609T GN-XIII and GNX-704T Ahead, and had trouble fending them off. Exia only have its right arm with a damaged GN Blade for defense/offense. As Setsuna engaged a GNX-704T Ahead, his GN Blade was cut off and was about to be destroyed when Tieria/Seravee appeared. Tieria/Seravee rescued Setsuna/Exia and went back to the airlock for a chat. Little was discussed as Saji confronted Setsuna about his affiliation with Celestial Being.

Saji was distraught with anger and sadness over the countless deaths of people, his sister and Louise's suffering (lost her entire family and left hand). He grabbed Setsuna's gun and demanded answers, but Setsuna just kept looking at him without saying a word. Saji's conscience couldn't kill Setsuna and was taken to a detention cell on board Ptolemy 2. While Tieria was talking to Saji about his naive perceptions of the world, Setsuna suited up in his new uniform and checked out his newly designated incomplete Gundam, 00 Gundam.

Rebuilding Celestial Being
While Celestial Being managed to quietly rebuild their arsenal and upgrade their GN Tech, their organization was far from ready to deal with the Federation. They needed a tactical analyst and a Gundam Meister. Setsuna went to recruit Lockon's identical twin brother, Lyle Dylandy, to be the new Lockon Stratos and return Sumeragi Lee Noriega.

Setsuna met up with Lyle and identified himself as a Gundam Meister and here to take in Lyle as Lockon Stratos. Lyle was confused over Setsuna's intentions, but then mentions about the original Lockon, his brother Neil. Setsuna gave some info to Lyle about Celestial Being and went on his way to pick up Sumeragi.

Setsuna didn't waste time, soon as Billy Katagiri opened the door, he identified Sumeragi as part of Celestial Being. Setsuna gave Sumeragi no choice but to return to Celestial Being. He dragged her into the Union orbital elevator to meet with Lyle at the orbital space station. While going up on the Linear Train, Sumeragi talked how the world didn't change and their sacrifices meant nothing as the world became a larger source of conflict. Setsuna encouraged her to fight to correct what they've done, but Sumeragi remained despondant.

After they met up with Lockon, they headed back to Ptolemy 2 by shuttle. While on their way back, Ptolemy 2 was under attack by A-Laws and Setsuna decided to run a live battle test with a unstable Twin Drive System. As Setsuna activates 00 Gundam, the Twin Drive System was still unstable. Setsuna cried out for his Gundam 00 to work and as if 00 Gundam answered his call, the GN Drives synchronized and worked just in time to deflect a beam blast. Setsuna/00 sorties and easily defeats all A-Laws' GN-X units. Shortly after their first major encounter with A-Laws, Wang Liu Mei informs Celestial Being of Allelujah Haptism's whereabouts.

Rescuing a Meister & Princess
The crew had a group meeting about rescuing Allelujah, but wasn't sure how to infiltrate a highly secured facility. Sumeragi just walked in to confirm the news about Allelujah, but when the crew asked for her tactical expertise, she refused. Setsuna told Sumeragi to let go of her past and that her expertise was non-consequential to her if they failed. He tells her they intend to rescue their comrade and begged her to help them, she relented to the task. She later gave Setsuna and the crew of their roles in the mission plan to rescue Alleljah, a 5 min blitzkrieg abstraction. While preparing in the MS container bay, Tieria sent Setsuna a prisoner roster list and Marina Ismail was listed.

After Ptolemy 2 distracted the facility with a tsunami, Setsuna/00 and Tieria/Seravee attacked the facilty. Setsuna tells Tieria he intends to rescue Marina Ismail within 2 mins of the alotted time. 00 Gundam crashed into the side of the building and Setsuna proceeded on foot to liberate Allelujah. Tiera/Seravee guarded 00 Gundam until Setsuna's return. After liberating Allelujah, he gave him a computer tablet to intercept Gundam Arios and quickly used his remaining time to liberate Marina Ismail. He found her cell, blown the lock, and took her with him on board 00 Gundam. Setsuna/00 then made a tactical retreat while finishing off pursuing A-Laws forces. After they made it to Ptolemy 2, the two had a private chat.

Setsuna apologized to Marina as their affairs gotten her involved with the Federation. Marina wanted to know why Setsuna continues to fight when he could've chosen another life away from violence, but he responded that he wanted a world without conflict and that fighting is all he knows. Marina started to cry from his response and he asked why was she crying. Marina told him that she's crying for him because he can't. Setsuna seems to be taken away from her words.

Heading to Azadistan
While in a meeting room with Setsuna (including Ian Vashti, Lockon Stratos, and Lasse Aeon), he wanted to know what are her plans after escaping from the Federation. Marina wanted to head back to Azadistan due to the country's instability and internal turmoil. While the others objected in consideration of Federation retaliation, Setsuna made the decision to send her back to Azadistan and Ptolemy 2 adjusted course accordingly. At the end of their conversation, Mileina Vashti abruptly popped in to ask if Setsuna and Marina were lovers and both simultaneously responded with a resound "NO".

Some time after, Setsuna went to check on Marina and found her alone in the observation room. Marina invited Setsuna to come with her to Azadistan to help repair Azadistan together. Setsuna refused and reasoned that he's only capable of fighting. Marina tells Setsuna that nothing can be gained through fighting, only loss. He tells her he used to think the way before joining Celestial Being, but said his and Gundam's reason for fighting is to sever the distortions (source of conflict) for the future. Marina had no response to his resolution and left the conversation at that. Shortly after their conversation, Setsuna and Marina were walking in the hallways of Ptolemy 2 when the ship was suddenly under attack by an enemy submersible (GNMA-04B11 Trilobite). Setsuna told Marina to head to the center of the ship for safety and ran to the MS container bay to sortie with 00 Gundam.

Tieria/Seravee pushed back Trilobite while Lockon/Cherudim provided firing support. Setsuna/00 was up next and as he was about to attack Trilobite, his concetration on the battle was momentarily distracted. His mind subconcioiusly thought up Marina Ismail's offer to return to Azadistan with her. Setsuna refocusd on the battle and eliminated Trilobite. Their next target was the A-Laws MS sea carrier above the sea.

Unexpected Assistance
Allelujah told Setsuna they were heading to the surface and Setsuna/00 grabbed onto Arios' fin for a ride up. Allelujah/Arios executed Trans Am to quickly reach to the surface to finish off A-Laws. Just as Setsuna/00 was about to destroy the MS carrier's command bridge, Mr. Bushido/Sakigake rammed Setsuna/00 and enaged him in MS combat. While fighting Mr. Bushido/Sakigake, Setsuna recognized that stubborn guy (Graham Aker/Mr. Bushido). Their fight was evenly matched, but the sudden appearance of Katharon convinced A-Laws to make a tactical retreat.

After the battle, there was a request by Katharon for Marina Ismail. Setsuna went with Marina to check out Katharon and was surprised at the strength of their organization. It was then Shirin Bakhtiar appeared to Marina and requested Celestial Being for a meeting.

Katharon Meeting
Setsuna, Tieria, Sumeragi, Saji, Marina entered the Rub' al Khali desert with a CB VTOL craft with Lockon/Cherudim and Allelujah/Arios as escorts to meet with Katharon. As they entered their secret base, Katharon rebels greeted Setsuna and the Meisters as their idols. After the pleasantries, they were taken to room for a private meeting.

Shirin thanked Celestial Being for taking care of Marina and intends to take over her care. Setsuna and the rest had no objections and Setsuna wanted Saji to be taken in as well. Saji objected Setsuna's decision without his approval, but Sumeragi told him it was for the best. While talking, children suddenly ran into the meeting out of playful curiosity. Setsuna had the sudden suspicion/apprehension they were being raised as child guerrillas like him when he was young. Shirin explained to him that they are orphaned children, adopted refugees and not raised adolescent militia. After the kids left to play with Marina, they got to the point of their meeting. Klaus proposed an alliance between Katharon and Celestial Being to bring down the Earth Sphere Federation, but Sumeragi declined them. Setsuna explains their goal is to eliminate A-Laws, not the Federation. Klaus at least wanted a partnership of some kind with Celestial Being, but ultimately both parties couldn't join together.

While outside the doorway of the children's playroom, Setsuna watches Marina encourage a shy boy to play together. Marina's kindness to the kids reminded him of his mother (or sister, it was never clearly defined). His remembrance of his painful past motivates him to leave. As he was walking away from the playroom, Saji reminded him that the kids are victims as a result of Celestial Being changing the world. Setsuna doesn't deny it and agrees with Saji. Saji asks does Setsuna feel anything and replies, ''Oh I feel something. I can never enter that place again. Saji wanted to know why Setsuna continues to fight, Setsuna replies, Because I have my reasons. I don't think you can understand them. I don't care if you curse my name'' (or hate me, depending on the sub)-and walks off.

Azadistan Burns
As Setsuna and the others get ready to leave, Setsuna intends to return Marina to Azadistan. Sumeragi was concerned a Gundam would have political implications and Setsuna suggested to take the VTOL craft to Azadistan instead. Sumeragi permitted Setsuna to take the VTOL craft to escort Marina, while the rest heads back to Ptolemy 2. Shortly after, Setsuna and Marina headed off to Azadistan.

As Setsuna and Marina got closer to Azadistan, Marina was excited to see her country. Once the plane flew into Azadistan territory, the two were in shock as the city was in flames. Setsuna wondered who could've caused this and eliminated the possibility of terrorism. Seconds later, he spotted a mobile suit hovering above the burning city and realized it's a Gundam. Judging by the design and coloring, Setsuna dreaded that it was Ali Al-Saachez. Against Marina's objections, Setsuna flew back to Katharon's secret base to drop Marina off to safety, only to find the base has been devastated.

Defending Katharon
While stationed at the devestated Katharon base, Setsuna found Tieria next to a broken down Saji. Tieria filled him on the details that A-Laws attacked Katharon and it was caused by Saji. Later on board their VTOL craft, Setsuna reported his findings to his fellow Meisters (Allelujah Haptism, Tieria Erde) about Azadistan. While suspecting it was the work of the Federation and talking about the appearance of a Gundam, the Meisters suddenly received news of Sumeragi's collapse and was ordered to return to Ptolemy 2.

With the Katharon base destroyed by the Federation and low on resources, Celestial Being offered food, supplies, and temporary protection to help them relocate to their alternate base. Timing was a concern because A-Laws might return to finish off what's left of Katharon. To prevent this, Setsuna and the rest of the crew decides to distract and hold off A-Laws by luring them into a fight at the shoreline, giving surviving Katharon members time to escape.

Setsuna and the rest of the Meister's sortied to combat A-Laws. As Setsuna/00 is setting up for launch, he was concerned over the Gundam he saw over Azadistan (Ali Al-Saachez/GNW-20000 Arche Gundam), but re-focused on the current battle and launched. While combating GN-X's, Mr. Bushido/Sakigake appeared for an aggressive high speed duel against Setsuna/00. The fight wasn't evenly matched, Setsuna had difficulty handling Mr. Bushido/Sakigake without more speed and power. After Setsuna/00 got his GN Shield destroyed, that's when Setsuna risked Trans Am to finish the fight. Trans Am allowed Setsuna/00 excel speeds beyond Mr. Bushido's/Sakigake's ability and cut off his right MS arm. As Mr. Bushido/Sakigake tried to evade, Setsuna/00 was going for the final blow to finish Mr. Bushido/Sakigake once and for all when 00 Gundam's GN Drives overloaded and broke down. With Setsuna/00 dead in the water, Mr. Bushido/Sakigake had Setsuna for the taking, but decided to let him off as he wanted to an honorable kill and flew off. Tieria/Seravee and Lockon/Cherudim defended Setsuna's/00's position for the duration of the battle. Sumeragi woke up not long to command the Ptolemy 2 crew to fire a smoke screen that forced A-Laws to make a tactical retreat and Setsuna/00 was taken back to the ship. After Setsuna/00 were brought back to Ptolemy 2, a search and rescue mission started after Alleljah/Arios were reported missing.

Ian wasn't pleased with Setsuna after warning him many times about Trans Am's instability issues. Due to the need for everyone MS for battle, Saji was asked to help repair 00 Gundam. Setsuna asked Saji was it a problem to repair a Gundam and Saji didn't have a problem with it. Saji still wants to atone for his actions on Katharon and willingly help repair 00 Gundam to protect them from Federation forces. While repairing 00 Gundam, news of Allelujah's location brought a sense of relief to the crew and Setsuna smiled for the first time.

Federation Banquet Investigation
Wang Liu Mei just sent news of a banquet dinner with prominent figures including an unknown figure of A-Laws coming to the dinner. Tieria jumped at the chance to volunteer in this mission to investigate into A-Laws and Setsuna provided backup. Both Tieria and Setsuna brought their Gundams and hidden them in a safe location and then arrived to the party. While Tieria dressed up as a high class lady, Setsuna dressed up as his chauffeur.

While waiting for Tieria, Setsuna did some work on his tablet pad when Louise Halevy spotted him. Setsuna recognized her as Saji's girlfriend and the two had a chat. Louise asked about Saji and Setsuna gave her half-truth information about his life. Setsuna couldn't tell her he's a guest technician for Celestial Being and said he bumped into Saji in a space colony while at work (which technically did happen), but never mentioned how he was framed to be a Katharon member and his other recent exploits. He noticed that Louise has unusual markings on her left arm and asked about it, but she only excused it off as a result of an accident. Setsuna remembered Saji mentioning about how Louise got hurt because of Celestial Being. While trying to telling Louise that Saji still thinks about her, she suddenly suffered nausea and headaches. Billy Katagiri was walking nearby and also noticed Louise in trouble and tended to her, but when asking about her, Billy realize he's talking to Setsuna. Billy shouted loudly that the chauffeur is a Celestial Being member. Setsuna had to flee from the scene and return to his Gundam. While Setsuna/00 and Tieria/Seravee headed back to Ptolemy 2, Setsuna apologized for getting his cover blown. Regardless of the situation, Tieria said he found the source of distortion of the world. Just then Ali Al-Saachez/GNW-20000 Arche Gundam appeared for a fight.

Ali/Arche proved to be a formidable opponent as both Tieria/Seravee and Setsuna/00 suffered serious damage against Ali's/Arche's melee combat tactics and use of its Fangs. The battle was short lived as reinforcements came to support the Meisters and Ali/Arche fled.

Trans-Am Launch
Ptolemy 2 and it's crew decided it's time to return to space. A-Laws search and destroy operation against them has increased in frequency and difficulty. To better prepare for future battles and avoid capture, Ptolemy 2 utilized the power of Arios', Cherudim's, and Seravee's Trans-Am power to launch into space. Sumeragi anticipated the possibility of A-Laws intercepting them in space and had Setsuna/00 sortie near the end of their outer space re-entry.

As Sumeragi anticipated, A-Laws had a GN-X squadron along with a battle cruiser intercept them during their re-entry. Setsuna/00 quickly cut down two GN-Xs and destroyed the A-Laws battle cruiser.

New MS Faceoff
En route to their secret asteroid base, the Ptolemy is attacked by mobile suit that outperforms 00, slicing its GN II sword in pieces before retreating.

Preemptive A-Laws Strike
After learning that the A-Laws used an orbital weapon to obliterate the Seel capital, the crew make plans to destroy it. But Tieria first informs them of the Innovators, beings like him, who can connect to Veda, who had been manipulating the events five years ago. Suddenly, the A-Laws attack. Setsuna//00 are separated from the others, as Barack Zinn, Andrei Smirnov and Louise try to prevent him form rejoining the others. Saji came in the 0 Raizer and docks with 00. This grants 00 the speed to outmaneuver Barack before killing him. They then make their way back to Ptolemy but Setsuna notices the Garazzo and activates Trans Am. The massive release of GN particles creates a psyscape, in which Setsuna and Saji could hear the thoughts of everyone on the battlefield.

Japan
It's unclear why has Setsuna chose Japan as his "homebase" of operations; he lives alone with a simple bed where he often reflects or exercise until the next mission.

Ali Al-Saachez
Former leader of the terrorist organization KSPA, it was he who brainwashed Setsuna as a child and turned him into a child soldier under the guise of religion. As such, he has greatly impacted Setsuna, causing him to harbor a general disbelief in religion and peace talks. He trained Setsuna in an undisclosed martial art, and this in turn is used by Setsuna mainly when he pilots the Exia. Having met on the battlefield, Setsuna initially exited his cockpit to confirm his opponent was Ali, which brought him under criticism from his fellow Meisters. Meeting at other times, Setsuna fiercely battled the man, but was never able to defeat him.

Kingdom of Azadistan
When the Republic of Krugis still existed, Azadistan started a war with their neighboring middle eastern country. Azadistan was better equipped in weapons and eventually the Republic of Krugis was destroyed and since merged with Azadistan. While people of Kurdish descent were granted citizenship in Azadistan, they weren't welcomed by the Azadistan locals. Setsuna has mixed feelings when it comes to Azadistan's past actions against the Republic of Krugis due to the deaths in his life.

Marina Ismail
Marina met Setsuna by chance because she thought she was helping out a fellow Azadistan countrymen. To her mistake she helped out citizen that was formally part of the Republic of Krugis, making conversation awkward. Though not true friends, Setsuna has respect for her as a person trying to find peace and solutions to Azadistan's development issues. Setsuna revealed his code name identity as a Gundam Meister and warned her Celestial Being would come if conflict continues there. During Setsuna's return to Azadistan, he helped her restore peace by rescuing their conservative leader, Massoud Rachmadi. He returned not long in the middle of the night, asking her "why is the world distorted, misguided (or twisted, depending on translation). Before he sortied on his final mission, he wrote a letter to her. Marina was genuinely concerned and was touched by Setsuna's possibly post death letter. In season 2 Mileina asked if she and Setsuna were lovers but both, without any hesitation or embarresment, denied it bluntly.

Rasa Massoud Rachmadi
A leader to the conservatives that Setsuna brought back from the clutches of Ali Al Saachez. He flew in with Exia, un-armed, and in good faith returned Rachmadi.

Celestial Being
Note: The dynamics behind all relationships within the series aren't completely defined. Only what was observed in the series was described.

Aeolia Schenberg
Though Setsuna has never met Aeolia Schenberg, he believes in his philosophy and served his organization as a Gundam pilot. It was Aeolia's system trap that activated Trans-Am that saved Setsuna from Ali Al Saachez.

Veda
Veda was the AI that approved of Setsuna to be the pilot of Gundam Exia for Celestial Being. Though Veda and Setsuna have no real bond with each other, Veda is interlinked with Exia. Whatever Setsuna does or goes, if he's using Exia, someone will know.

Neil Dylandy
Lockon was something of an older brother to Setsuna during the first half of the series. Often working together on missions, Setsuna felt close to Lockon. Later on, it was revealed that Lockon Straos' parents and sister were killed by a KSPA terrorist attack, the same organization that Setsuna was a part of with Ali Al-Saachez. Lockon confronted Setsuna over the situation, drew his sidearm and demanded justice, to allow him to avenge his family. Setsuna did not attempt to dissuade Lockon from his intentions, stating that he believed that Lockon would change the world in his stead. However, Lockon noted that the real enemy was Ali Al-Saachez, not Setsuna. Later on, during the GN-X's assault on the Ptolemaios, Lockon was injured after a beam saber assault struck his cockpit while defending Tieria Erde. Injured almost gravely, Lockon lost his right eye, mainly used for targeting during sniping. When a second assault by the GN-Xs occured, Lockon sortied in the repaired GN-002 Gundam Dynames. Ali Al-Saachez, who was piloting the hijacked GNW-002 Gundam Throne Zwei, engaged Lockon in combat and both defeated each other near simultaniously. Setsuna, who was returning from Earth, attempted to retrieve and save Lockon. However, the GN Arms component nearby Lockon's drifting form exploded before he could be reached, presumably killing Lockon. Setsuna mourned Lockon's death along with many other members of the crew.

Lyle Dylandy
After Neil's death, there was a need for a replacement Gundam Meister and Setsuna thought Neil's brother. Setsuna chose Lyle because they both have similar feelings about changing the world and it would be fitting to have his little brother replace him.

Tieria Erde
Tieria and Setsuna were never exceptionally close. Even in the beginning, Tieria disapproved of Setsuna's being chosen to become a Gundam Meister. Throughout the series, Tieria and Setsuna are loathe to work together, and Tieria typically considers Setsuna to be unfit for his position. However, the two have shown capacity to be considerable allies, notably during the desert assault of episode 15. At this point, it was a likely possibility that the two could become friends, but upon Lockon Stratos' death, Tieria lashed out at Setsuna, blaming him for Lockon's death. Sumeragi Ri Noriega did intervene, but the possibility of the two becoming good friends has yet to be seen.

Allelujah Haptism
Setsuna and Allelujah did not seem to interact very much, apart from the typical battle forecast meetings by Sumeragi Li Noriega in which both had to be present simultaniously. Neither were seen to be dismissed as a pair during missions, such pairings instead being Lockon/Setsuna or Tieria/Allelujah.

Sumeragi Lee Noriega
As commander of tactical operations, Setsuna always carry a planned assault from Sumeragi. Interestingly it's the other Gundam Meister's that are more strict with Setsuna than herself. They maintain a friendly/professional relationship.

Christina Sierra
Though they aren't close, Christina covered up for Setsuna when he used Exia to visit Marina Ismail in Azadistan. They're in constant contact only during missions because she's one of tactical coordinators. She wouldn't bother talking to Setsuna if it weren't business related.

Feldt Grace
Feldt and Setsuna did not interact much prior to Lockon's passing. Even afterwards, the two did not seem to grow considerably closer. However, they did share a moment while standing at the cockpit of Lockon's Gundam Dynames after his death. There, Feldt shared that she had written a letter to Lockon, and told his Haro to stay with him and keep him from growing lonely. She then asked Setsuna if he wanted to write a letter to anyone, but he declined.

Lasse Aeon
Lasse and Setsuna, late in the series, were paired as partners given Lasse's capability of piloting the GN Arms Type-E. Setsuna seems to respect Lasse, and vice versa, as the two have proven capable pilots when working together. They did not seem exceptionally close, but Setsuna did appear somewhat panicked when attempting to confirm Lasse's condition after the cockpit of the GN Arms Type-E exploded during the final battle with Alejandro Corner's Alvatore mobile armor.

Lichtendahl Tsery
They have a friendly/professional relationship, however Setsuna was never the talkative time so there was little interaction between the two.

Ian Vashti
Setsuna's idolizes his Gundam and while he might not show his gratitude to Ian, he's greatful for Ian's maintenance and upgrades for his Exia. They have a professional/friendly relationship.

Joyce Moreno
Though the Ptolemy's doctor, he doesn't appear to have any contact with Setsuna. They likely had a professional/friendly relationship.

Johann Trinity
Johann maintains a professional attitude with Setsuna, but he's not above using mind tricks to disrupt the unity with the other Meisters when he revealed Setsuna's link with Lockon's vengeance.

Michael Trinity
He dislikes Setsuna strongly because Nena fell in love with him. He doesn't understand why his sister would like Setsuna, but he "itches" to eliminate him.

Nena Trinity
She was impressed by Setsuna's reckless actions and on the first meeting face-to-face, she went at him for a kiss. Setsuna however didn't like Nena's kiss and shoved her off. When Ali Al-Saachez nearly was about to end her life, Setsuna intervened to save her life. It is unclear whether Setsuna has feelings for Nena. She is the only female in Gundam 00 that had shown romantic feelings towards Setsuna and some people think that their relationship will grow. So far in season 2 they haven't made any contact.