Chi Xiaochi is struck by a falling chandelier and left on the verge of death. To survive, he signs a contract with the Toxic Lover Reform System and becomes an agent, traveling through ten different worlds. His mission is to live out the victims’ stories and make their scumbag lovers repent. If he succeeds, he will be granted the chance to return home safe and whole. As the missions continue, Chi Xiaochi notices something strange: System 061, the system assigned to assist him, cares for him in a way that feels far too human—and far too familiar, like someone from his past who should have been long gone.