In the Regild Century, humanity exists in a state of fragile peace overseen by the Capital Tower, a space elevator that transports energy from the Moon. The story follows Bellri Zenam, a talented pilot cadet for the Capital Guard, whose life changes when a mysterious high-performance mobile suit—the G-Self—attacks the tower. During the skirmish, Bellri captures the pilot, Aida Surgan, a member of the anti-establishment pirate group Ameria. Despite their initial hostility, Bellri feels an inexplicable connection to the G-Self and eventually joins Aida’s crew, defecting from his post to uncover the truth behind the machine’s origins and the escalating geopolitical tensions.As Bellri travels across Earth and into space, he discovers that the Capital Tower is not merely a transport hub but a nexus of ancient, suppressed technology. He learns that the "Regild Century" is an era built on the systematic erasure of history to prevent the catastrophic wars of the past. However, this enforced stagnation is crumbling. Nations like Ameria, the Capital Territory, and the secretive Moon-based Dorette Fleet are mobilizing for a total war to control the G-Self and the legendary technology hidden within the tower.Bellri’s journey is one of profound disillusionment and growth. He struggles to reconcile his pacifist ideals with the necessity of combat, constantly questioning the motivations of the adults who manipulate him. His bond with Aida deepens as they navigate shifting alliances and betrayals, eventually realizing that they are pawns in a generational struggle for the future of humanity. The conflict escalates into a massive space confrontation, forcing Bellri to confront his own lineage and the dark secrets of the G-Self. As the factions collide, the true nature of the "Reconguista"—a mission to return humanity to space—is revealed as a desperate bid for survival. Ultimately, Bellri must pilot the G-Self to dismantle the archaic systems of control, choosing to forge a new path for mankind that transcends the cycle of violence. Through
political intrigue and high-stakes mobile suit battles, the narrative explores the burden of knowledge and the difficult transition from
childhood innocence to the grim responsibilities of adulthood in a fractured universe.