A father who can't stand to see his son fail the university entrance exam three times asks his friend's wife, Yuka, who used to be a private tutor, to be his private tutor. Yuka readily agrees and immediately starts teaching his son. However, her cleavage peeking out from between her shirt, her breasts pressing against his arm as she gets enthusiastic about her tutoring, and the glimpse of her panties between her thighs stimulates his young sexual desire, making him even less able to concentrate on his studies. Seeing this, Yuka...