This work is a love story that captures the troubles and injuries of young people in the mawla period, and the struggles of growing up. The protagonist is Kashiwagi Shinko, who lives a happy college life with her just started dating. One day, his ex-girlfriend Apple Omori breaks into the house, and Shin begins living together. Under such circumstances, the triangle relationship between them is depicted when Kamijou Sayo, who is now in Kano, notices Apple's existence.