Personality & Character
Stella is a mentally unstable and fragile person. Though it was never fully revealed, it's suggested she suffered severe psychological trauma as a child from the horrors of war. When she's at her best, her personality is that of an innocent child. She's playful, carefree, and has a limited understanding of her surroundings. Because of her childlike behavior, she's not useful for battle unless focused. It's why she was mentally conditioned to react to "die" or "death."
Seeing how she's fearful of dying, Stella's teammates often would use "die" to trigger her to focus. Even though she's a talented MS pilot, her mind is still that of a frightful little girl and often needs direction for action. Her teammates would often direct her wrath upon specific targets, telling her that her opponent is out to kill them all. Because she completely trusts her teammates, she takes action without question. Unfortunately, her own fear of death can be a liability in battle. It's necessary to bring out her anxiety to get Stella to battle, but at times the fear can be so overwhelming that she experiences hallucinations and delusions, at times lashing out to both friend and foe. If Stella's teammates can't successfully calm her fears, the best they can do is either wait it out or sedate her.
Her experiences are manipulated by her commanders and doctors. If Stella experiences something that can potentially contaminate her mind, it can be removed. It's because of that, Stella can at times experience déjà vu, familiarity to people or objects, but at times nothing at all if the mind wipe is sufficient. This is all done for Phantom Pain to manage her fragile mind without her losing direction in their mission.
One of the few people she truly trusts and has genuine affection for is Neo Roanoke, to the point that she disobeyed direct orders and put her ZGMF-X88S Gaia Gundam in a disadvantageous position because she was worried about him in a battle.
Skills & Abilities
Stella is a fully trained soldier and an Extended. Because of her artificially enhanced abilities, her body and mind can react just as well as a Coordinator. Even though her mind is childlike, when focused, she can hack and reprogram an entire MS operating system and customize it for personal specifications within seconds. As a soldier, she knows how to use firearms, stealth infiltration tactics, and MS piloting. Because "Extended" soldiers are merely perfected for war and nothing else, they all suffer psychological and physical side effects from their enhancements. Their bodies are often maintained by a full medical team, ready with drugs and advanced medical devices to keep them functioning. They also require regular re-conditioning.
Second Alliance-PLANT War
Incident at Armory One
Together with her comrades Sting Oakley and Auel Neider, Stella infiltrates into the PLANT colony Armory One, and with the help of some ZAFT-soldiers, they steal three of ZAFT's newly developed Second Stage Series units. Stella becomes the pilot of the ZGMF-X88S Gaia Gundam. They heavily damage the base inside the colony and fight against Shinn Asuka in the ZGMF-X56S Impulse Gundam. During the battle it appears that when someone mentions the word “die”, she completely goes berserk. Stella and the two boys nevertheless escape from the base on the Mirage Colloid-equipped ship Girty Lue but are pursued by the ZAFT-battleship Minerva.
Break the World
After the “Break the World” incident, the Phantom Pain is stationed on Earth on the carrier John Paul Jones and Stella is later engaged in another battle with Shinn.
During her stay on Earth, Shinn saves her from drowning after she falls from a cliff, but neither of them knows who the other is. She panicked when he said her block word, "die". Shinn, knowing that Stella was scared to die, hugs her and tells her that she won't die. He also told her that he will protect her. Stella, recalling that was the same phrase that Neo said to her, starts crying in Shinn's arms. He apologizes for scaring and upsetting her, and tells her to stop crying. He wraps a handkerchief around her ankle to stop the bleeding. Stella takes Shinn's hand, puts it on her face, asking him if he will protect her. He says that he will protect her. Stella became attached to Shinn and they grew closer to each other.
Shinn builds a campfire to dry his shirt and her clothes. When she stood up to get a pink shell, he felt embarrassed because she's topless. During this time Shinn swears to protect her, but when she returns to the Phantom Pain, her memories are erased. When the Minerva is attacked by the joined forces of the Earth Alliance and the Orb Union, Stella again fights and during this battle, she inadvertently kills the new pilot of the Minerva, Heine Westenfluss. When the Minerva investigates the extended facility in Lodonia – the place where the Extended are created – Stella attacks the Minerva but is defeated by Shinn and Athrun Zala and becomes a prisoner on the Minerva. But because of the changes in her body, her condition worsen and to save her life, Shinn violates orders and brings her back to the EA.
Battle of Berlin
After her condition has stabilized, Stella is assigned to be the pilot of the gigantic mobile suit GFAS-X1 Destroy Gundam. With her new suit, she destroys many cities in West-Eurasia until she reaches Berlin. There, she engaged in a fight with Kira Yamato in the ZGMF-X10A Freedom Gundam and later Shinn also joins the fight. When Neo tells Shinn that Stella is the pilot of the Destroy, he tries to calm her with his words and is partially successful, but when she sees Freedom, she attacks again, and in return, Kira attacks the cannons above the cockpit of the Destroy, causing deadly explosions that mortally injures Stella. Shinn rescues her out of the cockpit. She tells him that she loves him and finally dies in his arms. Shinn then brings her dead body and sinks it in a nearby lake, swearing to avenge her death at the hands of Kira Yamato. Shinn then managed to defeat Kira during ZAFT's Operation Angel Down.
Battle of Messiah
After the ZGMF-X42S Destiny Gundam is crippled beyond repair by the ZGMF-X19A ∞ Justice Gundam, Stella appears to Shinn in her spirit, telling him that she's finally got over her past and thus very happy. She bids him to see each other in the future, before passing onto the next world. (That really provides quite a relief and comfort to Shinn himself.)
Notes & Trivia
- Although many fans consider her relationship with Shinn Asuka as that of love interests, another interpretation from Super Robot Wars series suggests that her childlike attitude reminded Shinn of Mayu Asuka and she's more of a sister to him.
- Stella's background and relationship with Shinn is similar to that of Four Murasame and Kamille Bidan from Mobile Suit Zeta Gundam.
- In addition, both characters die via destruction of a giant mobile suit and die in the main character's arms.
- Stella can be saved and join the protagonists' group in Super Robot Taisen Z, K and L and join with the ZGMF-X88S Gaia Gundam, but there is no way to obtain the GFAS-X1 Destroy Gundam.
- Incidentally, Stella's spirit appears to Shinn in the same way as Flay Allster's spirit appears to Kira Yamato in Gundam SEED, in which Houko Kuwashima voices over both female characters.
- The meaning of Stella's name is "star", in contrast to Luna's name which means "moon". Coincidentally, both names are in Latin.