"Nishikata, a physical education teacher at a middle school on a small island, receives a phone call from an ex school-mate Takagi-san, who moved to Paris 10 years ago. When Nishikata was attending middle school, he was always teased by Takagi-san. One day, the vice principal of the school, appoints Nishikata to be in charge of the teacher trainee. After school, when Nishikata returns to the classroom and opens the door to the cleaning supplies compartment, Takagi-san jumps out from inside. From this moment, the time between the two of them, which had stopped since the summer of their junior high school, begins to move…