Iori, who is about to get married, reminisced about her classmate Takeichi, with whom she couldn't reciprocate feelings at the time. As she regretted their past and began having sex with her fiancé, she reached climax and passed out. When she woke up, it was 12 years ago. She had time-leaped back to her student days. To marry Takeichi, can Iori take revenge on her 'past' life and change the 'present'?
