Son Shinya's friends who often come to stay are secretly attracted to mother Yumi. One day, Takanori, who accidentally witnessed Yumi's masturbation, suddenly attacks Yumi and has sex. On another night, he approaches Yumi again, but Michiro also participates and tastes Yumi's plump body. When my son goes to a training camp, he gradually asks himself for young people who reach 3P orgy and violently spree.
