"Mother-in-law, I can't stand it anymore." Rin had a physical relationship with Yuya Yoshinori. A relationship that was supposed to end only once. However, Yuya, who is in the middle of adolescence, never forgets the pleasure of sex and begins to attack Rin almost every day. Rin, who was afraid of the collapse of his family, gave up on Yuya, but Yuya's increased libido had erected the moment her husband went out. Furthermore, Rin's body suddenly succumbs to pleasure ...