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?

Her husband Sejin is not interested in his wife Ahae as a woman. Ahae's husband is just heartless. In fact, Sejin is having an affair with Ara's young and beautiful younger brother Ara. After having suffered from depression due to work poisoning, he receives a message from the alumni association, and he changes his mind and attends. There, she meets Ahae, the next-door sister who had a crush on her childhood, and is still fantastic with her pretty appearance. Lonely Aha due to the innocence of her husband and Gunhoo approaching her with counseling. As if they were aware of each other's loneliness, they are attracted to each other and spend one night, returning to each other's daily lives, but after forgetting about the Ahae, the hand of the Ahae Abandonment comes to mind all night. Will they be able to go back to their daily lives?

Young-soo goes to the rooftop to smoke, and sees Eun-young, a student in front of the laundry. Young-soo puts emotions of love in her heart in the shape of pure Eun-young. Eun-young has a school meeting, so she asks one in front of her to take the goods, and Eun-young goes to say thank you to Ha-na on her way home. Amazed by the moan through the porch, Eun-young opens the door to her curiosity and sees Ha-na and Young-soo having sex on the sofa, and feels a strange feeling. He stutters his body unknowingly. From then on, he suffers from the sound of sex in his head... Meanwhile, one of the winners of the 4-person family pension tells Eun-young, who is in front of her, to go to the pension when it's time. Thanks to Ha-na, Young-soo, Eun-young, and Jae-suk go on a trip and have a very sweet and sweet love. Enjoying sex in different and unique ways at Pensions... Four people enjoying a vacation while making good memories...

Even Dong-ho, who got his dream home, went to the next generation and decided to eat every day with ramen. Dong-ho, who insisted on his own home, has one romance It's a college day, every day, I enjoy changing this woman I wanted to try my friend Sung Joon's section stripe. But I realized lately that I didn’t even have a woman The door to the next door opened when I was in the dark, and I picked up the collection bag. After discovering an attractive woman (So-hee), she becomes fascinated. Dong-ho decided to go out with her in a month, He's usually a timid personality, but he's a little dashing, but he doesn't give a glance and treats him coldly... Dong-ho, whose self-esteem is deprived, calls a business trip massage that Sung Joon gave I'm having a fascinating night with Mina, the sexy massage girl who came home... Then I heard the voice of the girl next door knocking on Dong-ho's door. Can Dong-ho get a girl next door?