A boring and ordinary life. Jun-young and Sung-jun may have something unusual, but they are bored with their daily routines. Then one day, Sung-jun learned about an invitation-only blind party from a junior in the company. Is there any reason for any man not to go? The place was full of excitement. Jun-yeong opened the door and while the place looked so much different, he could still recognize it instantly. One day without any word, a woman, Na-young, disappeared like a smoke. Because of a rule that he cannot ask anything, he ended up having sex with Na-young, and just like that, she disappears. Jun-yeong couldn’t tell if he’s dreaming or not. When he met Sung-jun and talked about what happened, Sung-joon will give him the contact details of the blind party organizer. After much thought, he finally contacted the host to see Na-young again. Na-young waits for Jun-yeong in the hotel room. How will the night be for Na-young and Jun-yeong?

Spring is being satisfied with her husband's kindness and devotion to her husband. One day, she is embarrassed by her sudden visit to Eun-a's college junior, but she doesn't want to be her husband's junior, but she takes care of her like a younger brother. Hee-dong finally got to have sex with Eun-a, and when she finds out, she runs out of the house in shock and despair, crying and makes a phone call. What is the end of the relationship?

Gyu-nam, even with a girlfriend, meets a married woman in an online chatroom and starts an affair. Gyu-nam, who is more sexually attracted to married women who tries to push him away, finds out that the woman's husband she is having an affair with is blind. The married woman and Gyu-nam boldly engage in a love affair in front of the blind husband. The woman feels guilty but she keeps on seeing Gyu-nam, but is torn because her blind husband has a good sense of humor. What is the fate of this affair?

Seung-ha hasn't been married for a while..I am dissatisfied with my husband Dojin's sex because I am increasingly not satisfied. I start to doubt whether Dojin is having an affair. Father-in-law Hae-il loves Seung-ha, who is open and friendly. But that degree began to pass, and finally I started dreaming of having sex with Seung-ha. One day, Seung-hae Do-jin had a woman she met before marriage. You find out that you are still having an affair with her. So angry, Seungha decides to divorce...

Hyun-jin is always frustrated with his wife who always refuse her, saying she's tired. One day, Hyun-jin drinks with his friends, Min-seok and Jin-gi, and got a massage together per Jin-gi's suggestion. But then, he falls in love with the special service, and after that, Hyun-jin goes back to the massage parlor whenever he has time...

Seok-yeong has been living with his father ever since his parents got divorced when he was young. His father, Joong-nam, would always introduce his new girlfriends to Seok-yeong, but Seok-yeong didn't like running into strangers in his house. At the same time, Seok-yeong feels more comfortable with women older than him. One day, Joong-nam says he's going to marry his new girlfriend, Gyeo-won. At a family dinner, Seok-yeong feels attracted to Gyeo-won's sister, Gyeo-woon, but he has to call her 'aunt'