In the distant future, Earth has regressed to an early 20th-century level of technology, while the Moon-dwelling "Moonrace" society remains technologically advanced. Seeking to reclaim their
ancestral home after centuries of exile, the Moonrace launches a scouting mission that spirals into a full-scale invasion. Among the scouts is Loran Cehack, a young man who infiltrates Earth and integrates into the local community, eventually becoming a loyal guardian to the aristocratic Heim sisters.Loran’s life changes forever when the "Turn A Gundam," a legendary machine buried in a mountain statue, is unearthed during a Moonrace attack. Forced to pilot the machine to protect his friends, Loran finds himself caught in a devastating conflict between two civilizations. His primary motivation remains a desperate, idealistic hope for peace, as he struggles to reconcile his duties to the Moonrace with his love for the people of Earth.The narrative deepens as the complex political machinations of the Moonrace leader, Agrippa Maintainer, and the ambitious, unstable Gym Ghingham collide with Earth’s desperate resistance forces. Key characters like the fiercely independent Diana Sorrel—the Moonrace Queen who descends to Earth to experience its beauty firsthand—and her lookalike, Kihel Heim, drive the story’s central
identity crisis. As the two women trade places, the lines between invader and defender blur, exposing the cyclical nature of human violence and the burden of history.As the conflict reaches a fever pitch, the true nature of the Turn A Gundam is revealed: a terrifying "Dark History" weapon capable of resetting civilization. The story moves beyond simple warfare, evolving into a poignant meditation on memory, cultural trauma, and the necessity of moving past ancient grudges. Loran’s journey culminates in a climactic showdown against Ghingham, where the choice to destroy or preserve the past becomes a test of humanity’s maturity. Ultimately, the series is a profound exploration of reconciliation, as the Moonrace and Earthlings are forced to abandon their destructive pride. By choosing to bury the machines of war, the survivors attempt to forge a new, unified future, proving that true strength lies not in the power to destroy, but in the courage to coexist in a fragile, reconstructed world.