Wataru goes to his best friend Takeshi's house to play. He falls in love at first sight with Takeshi's mother Kotomi's beautiful appearance, and can't stop having lewd fantasies about her. From then on, he visits Takeshi's house every chance he gets to see Kotomi. One day, Wataru ends up alone with Kotomi, and finally confesses his passionate feelings for her. Kotomi is shocked by this young and passionate confession...