My stepfather's wife is teasing me about my stepfather. Please forgive me now...

Yuki is a beautiful wife who lives with her husband Tomonori and her father-in-law Tomozo. Tomozo, who is in agony at the state of being unable to take on sexy Yuki, summons Yuki. Tomozo tells him that Yuki is the reason why his grandchildren cannot be incapable of, and threatens that if things continue like this, it will make Yuki's parents feel embarrassed. Yuki succumbs to the threat, and is confused and endures her shame, but she is naked. Chizo strokes Yuki's ass, calling it a physical examination, and then she slides her hand down her pussy...