Brother, there is a strange thing in this world called the "Branch of Reincarnation." It is said that if a person slits his throat with it (from the looks of it, it looks like suicide), he gets all the talent of his previous life. Our hero Touya Senji is a poor boy with low self-esteem, who is always overshadowed by his capable elder brother. He thought that perhaps studies were his last hope, but even after being in the top 100 in the national exams, he is not getting the peace he wanted. Then, fate strikes, and Touya meets a girl from his class, Haito Luo Buffett. But this girl is no ordinary girl; she's a "Returner" who, using the same branch, has regained the dangerous powers of her previous life. Touya spots her while she's battling a deranged serial killer. From here, Touya's life is about to take a turn, and this game of talent is about to get bloody!