第 12 集: 美島決定在美春轉院期間參加首次比賽
2017年9月29日 播出
Miharu is scheduled to take time off school and transfer to another hospital for surgery. She feels both anxious about the upcoming procedure and sad to be moving away from her friends. Seeing Miharu in her emotional state, Mishima resolves to participate in his first meet as a regular on the swim team, but the event falls on the same day as Miharu's transfer. As Mishima heads to the meet, he leaves a certain object with Honda. (Source: Crunchyroll)