Hell Hell

Seventy-two immortal children, each impervious to harm except from weapons forged in hell, are tasked with fighting to the death to determine the next ruler of hell. Each is given a weapon and left to battle for survival. Hagino Sin, the child most disliked by Satan, flees to the human world and deceives a compassionate writer into sheltering him. However, Sin grows attached to his host and his classmates. As his siblings hunt him to eliminate the threat, he must decide whether to kill them or risk being killed himself, while trying to retain the humanity he has come to value.