while my wife is away on a solo trip, i have a forbidden encounter with my sister-in-law, tsumugi. as our marital relationship cools, i can't resist her temptations. "she's probably cheating on me anyway," i think, but tsumugi's sweet whispers make me lose my reason. day and night, i have intense sex with tsumugi, who is much prettier and sexier than my wife, and creampie her over and over. we both crave each other, wanting to stay connected forever. the taboo and euphoria make my head spin with pleasure.