Teasing Futaba, who is at a loss for an answer, Kou says he isn't "the Tanaka-kun from back then." Doubts grow in Futaba about what happened during the three years they couldn't meet. Meanwhile, Futaba and others are assigned pool cleaning as part of their training task. Shuko ends up alone with the teacher she harbors feelings for, Yoichi Tanaka (Daiki Kenkon), but is urged to return to the group. Futaba worries about Shuko's return, but is pushed away as annoying, and then Yuriko gets injured.
At the end of the first year of high school, Futaba Yoshioka meets Kou Tanaka who was her first love. In their middle school days, they attended the same school, but he suddenly transferred to another school. Three years later, he appears in front of her again with the different last name of Kou Mabuchi. His personality also seems to have changed from warm to cold. He is like a totally different person from three years ago. Futaba Yoshioka slowly learns what happened to Kou Mabuchi for the past three years and she become to have feelings for him again.
