Sumitomo Itoshima (played by Kuroshima Yuina)'s parents divorced very early. After that, her mother remarried and Itoshima had a so-called father again. However, this man did not bring happiness to the mother and daughter. To make matters worse, she was bullied and excluded by her peers at school because of her special family character. When things went wrong, her mother decided to take Itoshima away from this sad place and this bad environment and move to Sapporo where her biological father was to start a new life. In the new school she transferred to, Itoshima's life was not easy. On campus, she met two boys, Tatebayashi Gen (played by Kotaki Nozomi) and Sakurai Kazuo (played by Takasugi Mahiro), both of whom were very popular figures on campus. After a series of struggles and transformations, Itoshima finally found her place and fell into a romantic triangle love affair.