Sumitomo Shima is a girl who looks unlucky, living with her mother but feeling uncomfortable living with her mother's husband. She decided to move to the Hokkaido area, where her father lives and move her to her new high school in Hokkaido. In this school, Shima is introduced to her classmate Tatebayashi Gen and Sakurai Wao, the most popular boys in her school, who have a seemingly comfortable relationship in a new life.
