Ryoka, a housewife who has a boy who is a college student. I had a good relationship with my husband and lived with three family members. One day, after my son went out, I was wandering around with my husband. However, my son has returned and I can see him in the middle. Ryoka cleans up in the kitchen that night. My son came there and drank water. Ryoka who wipes spilled water. The boy gets excited and pushes him down when he sees his ass. Ryoka resists, but she feels like a fierce waist. After that, Ryoka, who can't forget that day, sneaks into her son's bedroom ...