Aya lived calmly with her husband and son, but was only dissatisfied with sexlessness with her husband. My son's friend Yuki came to Aya's house to play. Yuki who gets excited by watching an erotic DVD in her room goes to the bathroom on the way. I forgot to close the door and got into a mess with Aya, and witnessed a young erection Ji Po. Since then, Aya who can't forget Yuuki's ginginous thing ...?