Swimming club...It was Kaori's bright youth. - When one of my juniors told me, ``Let's try on a swimsuit!'', I decided to put on a swimsuit because I wanted to relive those days, regardless of my age. - However, Kaori was so moved by how comfortable it was that she didn't even notice the shadow that was staring at her. - The person she is looking at is her junior, Akira. - Still young, he is unable to suppress his desire in front of her beautiful and naughty body trained through swimming, and attacks her...