Futaba Yoshioka spent middle school being ostracized by jealous female classmates, so in high school she deliberately acts brash and unpolished to keep the peace with her new friends. Then Kou Mabuchi reappears as a cold, distant classmate: her first love from middle school, now going by a different surname after an upheaval at home. Futaba is caught between the boy she remembers and the person he has become.