A musician, Aki, never got to debut as he suddenly died and his band dissolved. One year later, the band members Yamaken, Shigeta Mori and Kana are visited by a university student, Sota, who begs them to revive the band. As it turns out, whenever Sota plays a certain cassette tape, Aki`s spirit will take over his body for 30 minutes. This allows the two to live their lives sharing one body and Aki`s more positive behaviour begins to rub off on Sota`s loner attitude. Unfortunately, something happens to the tape and their 30-minute sessions are getting shorter.