Maki, whose son, Kazuya, who was a withdrawn and bullied child, brought her childhood friend Junkichi and couldn't hide her joy. In fact, Junkichi is the mastermind of the bullying, and Maki is shortening the distance without knowing it. - Junkichi, who shows an abnormal attachment to her mother in a father-son family, takes advantage of her kindness and pushes her down to the ground. Maki climaxes every time she is violently rubbed against the back of the vaginal wall that has not been touched for a long time. - In reason, while rejecting him, the body gradually cannot suppress the pain of the uterus ...