The sister-in-law is young and attractive. She imagines having secret sex with her brother-in-law. The 23-year-old lives with her sister and her husband. She's witnessed them having sex once and now imagines her brother-in-law and his naked physical body. One day, she is introduced to a date by her brother-in-law. The date is himself. He planned on taking her out one day to cheer her up. She imagines having sex with him but she knows it's not possible and writes it down her on Bucket List. What will happen to her love for him?

A man looks after his young sisters-in-law for years after his wife passes away. The two sisters grow up and fall in love with their brother-in-law. The youngest sister exposes herself in front of him and seduces him in anyway possible. The first sister is more feminine but she also can't help but feel attracted to her brother-in-law and think about having sex with him... At first, the man laughs it off but soon he feels attracted to them too and wants to have sex with them. Who will he choose between the first and second sister...?

Sae-hee couldn't go to sleep from the first day in her new house because of the moaning coming from next door. Sae-hee has never had sex before, but she's writing sex novels. Playboy Seong-hyeon was getting tired of his sex partner Jia when he finds out that Sae-hee is a sex novelist. He begins to help her with her work but really he's using that as bait to get into her pants and he does. Will Sae-hee be able to complete the novel?

A married couple of six years are having trouble. Secretly meeting up with other married people revitalizes their individual passions.