On his birthday, Seigaku's Fuji Shusuke confessed to his long-admired teammate Tezuka but was rejected. He was inexplicably given magical powers by his subordinates in his previous life and turned into his previous life - Zhu Yunwen. In order to prevent the demon from his previous life from resurrecting, Fuji began to assist Zhu Yunwen in stealing everywhere. However, as time went by, Fuji gradually discovered that Zhu Yunwen's purpose of collecting ancient cultural relics did not seem to be to save the world. On the other hand, Tezuka is also worried about Fuji's increasingly weird behavior...