For killing his fiancée, Satake Hirofumi is a man serving a death sentence. Additionally, he is a "Undeadman" who has endured numerous harrowing circumstances. For this, he has attracted the attention of the "Human Crazy University," a study center that examines actual miraculous occurrences and the people who become involved in them. Satake, who is now a topic of their investigation, shares with them his memories of his eternal but terrible life. Why did he kill his future bride? The truth will eventually reveal a much larger plot.