In the fission era, nuclear war burned the old world, and the entire continent became a dead ruin. The scavenger {Chen Jin} struggled to survive in the ruins of the ruined city, and accidentally dug up a memory chip that sealed the truth of the old world. As broken memories continued to flood into his mind, he discovered to his horror that he was no ordinary survivor at all, but a clone of the culprit who launched the nuclear war. The devastated wasteland, the suffering living people, and the original sin engraved in his genes pushed him into a dilemma. Is it to take revenge on the source of the evil that created you, or to redeem the broken world as a clone? In the dark apocalypse of fission, he must choose his own destiny with his own hands.