Takagi, now grown up, revisits her middle school as a trainer. She encounters Nishikata, her former classmate she used to tease, now a PE teacher there. Their playful dynamic resumes, leading to more interactions between the two.

10 years after her middle school days and now a full grown woman, Takagi-san (Mei Nagano) returns to the middle school where she graduated from as a trainee trainer. There, she meets Nishikata (Fumiya Takahashi) who was one of her middle school classmates and he was frequently teased by her. Now, Nishikata works as a PE teacher at the same school.—AsianWiki