Ryōji Ara suspects that the bruises on the leg of his sleepy classmate, Kotori Mizuno, are signs of abuse. Eager to find out the truth about her situation, he sees her being taken away in a car! He pursues her and finds her at the Kito Artistic Swimming Club. As he talked with the club's coach, Aya Kitō, Ryōji realizes that Kotori is just very uncomfortable with the way people look at her. The bruises are also the result of a failed performance! Ryōji attempts to leave quietly, but Kitō takes notice of him and plans to use his personality to solve Kotori's problems!