During the construction of the space colonies, mankind advanced towards the Asteroid belt, Jupiter, and built cities on Mars. Amidst the transition to the Universal Century which began with the immigration to the space colonies, the Mars cities also developed Side A "Arcadia", which would become forgotten by the developing Earth Sphere .
Arcadia became a place for those who no longer had a place on Earth and became a kind of autonomous nation out of reach of the Earth Federation government and Federation Forces. After the end of the One Year War in U.C. 0079, the Kycilia loyalists faction of the Zeon Remnants organized on Mars and conquered Arcadia. They were later renamed Zeon Mars, and with cooperation from Axis, they effectively controlled Mars with military might and the industrial power of the Mars plant .
However, after the end of the Delaz Conflict in U.C. 0083, remnants of the Gihren loyalists faction led by Omega established themselves on Mars and were named ReZeon. They employed guerrilla warfare to challenge Zeon Mars' dominance in Mars.
Following the end of the Gryps War in February of U.C. 0088, captain Tristan led a faction of Titans remnants (also known as Tristellar) which merged with Axis forces and escaped to Mars, bringing the TR Series plans and "Inle's Wings" with them. The Titans remnants joined ReZeon under the leadership of Alicia, who claimed to be a successor of the Zabis. Using "Inle's Wings", Zeon Mars ultimately fell into ruin with Alicia declaring the founding of the nation of ReZeon. The citizens of Arcadia who suffered under the tyranny of Zeon Mars graciously accepted the new ReZeon leadership.
ReZeon thoroughly removed old Principality of Zeon military technology while simultaneously re-producing TR Plan and Titans mobile suits at the Mars plant. In addition, Hi-Zacks and Barzams, which were spoils of war, were also re-produced and deployed for use by regular soldiers. This is due to Alicia's beliefs that ReZeon was not a Zeon remnants organization but rather a new organization reborn on Mars, thus old Zeon weapon systems were not appropriate for ReZeon.
In U.C. 0089, a transport convoy carrying hundreds of thousands of immigrants from Earth arrives on Mars. Accompanying the convoy is the returning Chester Space Fleet, a Zeon Mars fleet dispatched to assist Axis Neo Zeon in the First Neo Zeon War. ReZeon conquered Mars while the fleet was away. During the Chester Fleet's Mars Descent Operation, Gloria Zabi sorties in the TR-6 Queenly on Alicia's behalf from the Satellite Phobos Space Port to attack the fleet.
In October, U.C. 0091, the Titans remnants, who had all their weapons confiscated after the founding of ReZeon, went into hiding in the Arcadia underground and colluded with Zeon Mars to initiate the "Inle's Wings" Recapture Operation, also known as the "Shining Star" Operation. The operation would involve attacking five important ReZeon locations simultaneously; The Olympus Volcano ReZeon base, Arcadia, Phobos Space Port, the industrial plant, and the secret underground glacier Inle construction base.
Set in U.C. 0091 after the end of the First Neo Zeon War, the plot follows ReZeon forces which have regrouped on Mars under a woman proclaiming herself Supreme Commander Alicia Zabi and absorbed Titans remnants who fled the Earth Sphere.
Part 2 Arcadia of Zwitterion
Volume 1 - Prologue: Arson Orbital Zone ( 序章 紅蓮の航路 "Joshō: Guren no Kōro")
- Prologue: Arson Orbital Zone 0
- Prologue: Arson Orbital Zone 1
- Prologue: Arson Orbital Zone 2
- Prologue: Arson Orbital Zone 3
- Over the Mind (oneshot)
Volume 2 - Part 2: Arcadia of Zwitterion (双極のアルカディア "Sōkoku no Arukadia")
- Part 2: Arcadia of Zwitterion Zone 1
- Part 2: Arcadia of Zwitterion Zone 2
- Part 2: Arcadia of Zwitterion Zone 3
- Part 2: Arcadia of Zwitterion Zone 4
Volume 3 - Part 1: Alice of Zeon (アリスの王国 "Arisu no Ōkoku")
- Part 1: Alice of Zeon Zone 1
- Part 1 : Alice of Zeon Zone 2
Volume 5 Chapters not yet published
- Prologue: Arson Orbital Zone 4
- Part 1: Alice of Zeon 3
- Part 2: Arcadia of Zwitterion 5
- Part 2: Arcadia of Zwitterion 6
- Part 2: Arcadia of Zwitterion 7
- Part 2: Arcadia of Zwitterion 8
- Part 2: Arcadia of Zwitterion 9
- Part 2: Arcadia of Zwitterion 10
- Part 2: Arcadia of Zwitterion 11
- Part 2: Arcadia of Zwitterion 13
- The leader of ReZeon who is regarded as a descendant of the Zabi family. She is referred to as "elder sister" by the Alice Guards.
- Vice president of ReZeon. She is a Cyber Newtype and also called Alicia's sister, it is unclear if she is a clone.
- Leader of the Alice Guards and Alicia's third clone. She is a candidate to pilot "Inle's Wings" and has an aggressive personality.
- The only male member of the Alice Guards, he is also a candidate to pilot "Inle's Wings". He is meek in contrast with Cynthia.
- A member of the Alice Guards.
- The former leader of ReZeon. After an internal dispute with Alicia after the founding of ReZeon, he left for Earth hearing rumors of Char Aznable's uprising.
- Leader of the Titans remnants.
- Donna Loredo
- RX-124 Gundam TR-6 [Inle]
- RX-124 Gundam TR-6 [Kehaar II] (ReZeon Captured specification)
- ARZ-055 ReBaund-Doc
- ARZ-79HZ Early Hazel
- ARZ-106 Low-Zack
- ARZ-106GZk [Gran-Zack]
- ARZ-106HZ2 Hi-Zack2
- ARZ-106HZ Hi-Zack (ReZeon Captured specification)
- ARZ-108Mr Marasai
- ARZ-108GMr [Gran-Marasai]
- ARZ-124 [Kehaar II] EWAC Form
- ARZ-124 [Hrududu II]
- ARZ-124 [Primrose II]
- ARZ-124FVII [Fiver II]
- ARZ-124HBII [Hambrabi II]
- ARZ-124HBIIM [Aqua Hambrabi II]
- ARZ-124HZII [Hyze'n-thley II]
- ARZ-124HZ2 [Hyze'n-thley II-Rah]
- ARZ-124 [Wondwart-Rah II]
- ARZ-124WD Gundam TR-6 [Wondwart]
- ARZ-124 Gundam TR-6 [Wondwart] Psycho Blade Custom
- ARZ-124INL [Inle]
- ARZ-125 Rehaize
- ARZ-139 Non-Brabi
- ARZ-154BZ [Barzam]
- ARZ-154BZII [Barzam II]
Vehicles and Support Units
- AMX-011EW Zaku III Recon Type
- MP-02A Oggo
- AMX-001 Gaza-A
- AMX-003M Gaza-M
- MAN-08S Helios
- MAN-08S-M Helios Mariner
- AMX-008M Ga-Zowmn Marine Type
- AMX-009G Dom III
- AMX-011G Zaku III
- AMX-014R Reben Wolf
- AMX-101S Gallus-S
- AMA-01S Byg-Zamuru
Vehicles and Support Units
- ORX-005 Gaplant TR-5 [Hrairoo] w/Gigantic Arm Unit
- RX-124 Barzam II
- RMS-154 Barzam
- NRX-044 EWAC Asshimar
Vehicles and Support Units
- Vol.1 ISBN 978-4-04-912225-1
- Vol.2 ISBN 978-4-04-912510-8
- Vol.3 ISBN 978-4-04-912812-3
- Vol.4 ISBN 978-4-04-912950-2
- Vol.5 ISBN 978-4-04-913181-9