When I returned to my wife's parents' house, my beautiful sister-in-law was waiting for me. - Forcibly, boldly, and persistently seducing me...Even though I was confused, the dam of reason was on the verge of bursting. - Even though I know I shouldn't, my heart is shaken by the charm that my wife doesn't have, and I finally have sex with her! - And by the time he was horrified when the reason for her obsession with him became clear, he had already become fascinated by his sister-in-law...