Three ancient giants wake up to find their galaxy already conquered. Only one of them has enough power left to fight back, so they have to decide who deserves to survive. A four-episode ONA that treats a premise built for a browser game like it matters, cutting straight to the weight of choosing which god lives and which god dies.
Three colossal robots slumber in a parallel dimension called the Cosmic Ark, their power nearly depleted after eons of dormancy. When they awaken to discover their galaxy consumed by the tyranny of Chaos, a grim reality becomes clear: only enough energy remains to resurrect a single Ark. The three remaining giants, each embodying Wisdom, Courage, and Strength, represent humanity's last hope, but only one can rise to fight back. Three rival factions form around each dormant machine, each believing their chosen Ark holds the key to salvation. Competition turns bitter as these Unions clash over resources and ideology, their internal conflicts threatening to undo them before Chaos ever strikes. Personal vendettas simmer beneath the surface while the clock counts down to an impossible choice. This four-episode story weaves together intimate character arcs with apocalyptic stakes. Watch as individuals grapple with loyalty, sacrifice, and the weight of civilization's future resting on decisions made in desperation. For viewers drawn to high-stakes mecha drama where human drama matters as much as the giant machines, this one hits hard.