The main character, Taiga Yagami, tells his childhood friend Mio Sakuragi, whom he has had a one-sided love for 10 years, about his feelings for her, and they become the couple he has always wanted to be. However, his happiness is short-lived, and the next day he finds himself in hell. He realizes how meaningless it is to form a bond with people when they leave him so easily, despite the fact that he was falsely accused of only one thing. But then a new student comes along.