Three kids sent back in time to stop a war that hasn't happened yet have to choose between saving individuals and stopping the whole thing. The show stacks time travel paradoxes on top of genetic horror on top of genuine moral collapse, and every choice compounds the last one. By episode twelve, you realize the real enemy was never the generators, it was always what humans decide to do with the power to change everything.

Three young boys, Ryo, Gawl and Koji, journey back into the past with one goal: to alter the course of history. In their own era, their homeland of Kubere relies on genetically enhanced people known as generators as weapons of war. Those generators bring about the Third War, which wipes out most of humanity, and the trio sets out to change the events that lead there. The sci-fi adventure mixes action and drama with comedy.