After learning that her son, Yosuke, has had his first experience, Momoko's mother can't help but worry about him.I secretly hear from her son's best friend, Yuya, but...Yuya, who originally had a crush on Momoko, told her that she was a virgin and spit out her feelings for her. Momoko says, "If it's only once," but she becomes captivated by Yuya's sincere feelings and intense piston.Momoko gets wet with her joy as she interacts violently with a young man, and she can't forget her pleasure.