Swapping: Professors and Disciples

To promote his restaurant located at the base of a hiking trail, its married owner joins a mountaineering club where he meets an attractive divorcée.

Unlike his expectations, Hyeong-min is always miserable because of his wife who who doesn't care about him. To recover a sex life with his wife, Hyeong-min tries every night but he's always coldly rejected and this is making him depressed. One day, he goes out for some air and meets Hye-jin. When their partners aren't at home, they spend time together at each others' house. However, soon, they get caught and they come to a decision after a long talk...

Moon-ja is bored of her married life with Sang-in who can't give her what she needs at night. Then a former porn star moves into their house and Sang-in feels shaken by Yeon-hee. He was her fan in the movie "The Swamp of Desire". The two get close as Yeon-hee asks house owner Sang-in to help her fix things in the house. Sang-in then finds out that Moon-ja is sleeping with his good friend Dong-seok and witnesses Yeon-hee get abused by a former manager. Sang-in and Yeon-hee share their misfortune and get closer and in the end something extreme happens between them.

A secret suggestion made by a man who's never been loved. This instinctively outrageous encounter starts now. Hyeon-joo takes some sleeping pills due to her boyfriend's sudden break up. She wakes up to someone touching her and realizes she's dead when she sees Do-jin the Death Angel in front of her. She is scared and regrets what she's done so she begs Do-jin the Angel of Death to let her go. Do-jin is surprised at how hot she is and offers her a secret deal...

Mi Na opens her new beauty salon. However, Mi Na doesn't reseive customers even though she has opend her salon for a while. Therefore, she tries to attract customers by implementing a sexy concept, which proves to be a jackpot.

Episode 1. Teasing the husband A man and a woman get married not long after they meet. They enjoy passionately making love in every part of the house. After some time, they start getting tired of each other. The wife attends her husband's superior's house warming party one day. The superior is sending her signals and the jealous husband lights up his passionate love for his wife once again... Episode 2. The chicken delivery guy So-yool is new at this social life gig and one day she orders chicken to go along with her beer. The delivery guy is none other than her crush from high school. She orders chicken every night to see him and So-yool and Go-won develop into a relationship. Episode 3. With a student at a TOEIC school A teacher at a TOEIC school is concerned about a student who isn't improving and offers to grant him a wish every time he passes 90. She thought all she had to do was buy him dinner or something but the student's wish became more and more extreme!

Seong Soo, a twenty years old boy, decided to move to Seoul after being accepted into Seoul University. However, he was a victim of real estate scam. He then moves into his mother's friend's house. Moreover, it turns out that his mother's friend is a sexy self-employed mother and Seong Soo is attracted to her.

The marriage of Yin Nan and Mei Ai has lasted for eight years. The passion and romance at the beginning have already been exhausted by the world. Yin Nan has nothing to do at home all day, waiting for the beauty to make money and come back to raise him. This makes Mei Ai feel very angry. The dual pressures of work and life have made Meiai start to look for excitement in other men. By going to bed with a strange man, Mei love seems to be able to vent a little dissatisfaction with the world. Over time, this has become her habit. Next to Yin Nan’s family, a beautiful woman named Yi Yin was moved. Yi Yin discovered that her boyfriend, who had been with her for many years, actually stole himself and succumbed to his life. By chance, Yin Nan and Yi Yin met, and the two lonely hearts quickly approached. Mei Ai found that Yin Nan’s attitude towards himself was a lot colder, and he began to want to study the reasons behind it.

Ga-eul is six years into her marriage but her trouble with her husband brings her to depend on alcohol. Hee-mang is a writer who lives next door but can't stand the fighting going on at Ga-eul's house and makes his way over there one day. Ever since then, Ga-eul goes over to Hee-mang's house to have sex everytime she fights with her husband. Hee-mang is confused at her behavior and gradually falls for her. Then Ga-eul slowly resolves things with her husband but Hee-mang asks to talk with the three of them...

Ha-yeong is a successful psychologist. One day she gets a secretive request from her sister Ha-joo. Apparently Ha-joo's husband Woo-seong is refusing to have sex. Ha-yeong agrees to be their couple therapist but finds out that her brother-in-law actually has sexual desires for her and not her sister...

Joon-soo learns that his friend Hee-gyu's sister Hee-jin has no where to go after being scammed, so he suggests living with him. The two start living together. They are close like brother and sister but they can never be that. The two start getting funny and Joon-soo can't go to sleep at the thought of Hee-jin sleeping just a wall away from him. Mi-na, Joon-soo's girlfriend notices Joon-soo changing and seduces Joon-soo at his house where Hee-jin is. Is it the girlfriend or the sister?

20-year-old Kyeong-soo is a man who's full of assumptions. He learned about sex from Internet porn, but nothing about the real thing. He's only had crushes and has never even kissed before. He got embarrassed when he confessed his feelings to Ji-yeon, his crush. He comforted himself from the shame with Japanese girls in his room with his right hand. One day, he has a fight with his father and remembers his friend Baek-hyeon had invited him over to Gangwon-do. There he falls in love with his friends' mother. Written by lament

Seon-mi hands a name card to Joo-hee who is about to get married, saying that she'll be able to feel sexual satisfaction like never before. Joo-hee experiences something new and starts expressing her rising emotions to her fiance despite the time and place. Unlike Joo-hee who is enjoying this, Min-woo is getting tired. He tries to satisfy her to the best of his abilities and even asks for advice from friends but it's not enough. What is that place that has her upside down like this?

The woman is a housewife, has a son who goes to school, and has a husband who loves her. However, although she is very harmonious with her husband's sexual life, she still maintains the habit of derailment, and her door of desire has long been opened. However, in Japan, there are countless young women like her. They even gather together in a sex club to discuss alternative sex and love....

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?

Ara who works as a head of department at a people agency is an enthusiastic woman who meets secretly with her male clients just for the fun. On the other hand, Mi-yeon hates the men who stare at her body so bluntly. One day she finds out someone is watching her secretly from the house across from her and she feels aroused, making her reveal even more...

Eun-joo dreams of being a plastic surgery specialist while she works as a nurse. At night, she has a job as Nabi, having sex on the phone to come up with money for her dad's medical bills. La Belle's madam Big Mama pays her girls in advance and forces them to do sexual activities like body cams while she rips them off their money. At La Belle are Candy, Cherry, Eunmi and other girls with stories but have sex on the phone with men. Meanwhile, Joon-ho, Eun-joo's hospital director starts showing interest in Eun-joo who looks like his dead wife and they develop a romantic relationship. However, Eun-joo doesn't open up to him so he starts to feel disappointed. Joon-ho starts getting obssessed with her the more she pushes away from him until one day he sees her going to her night job.

A paparazzi reporter and a female doctor with exhibitionism can't help their instincts. Jae-hoon was a cameraman but he was fired for something and is now a paparazzi. He is known for his neat work but his usual task is catching people in affairs. One day he gets a call from a woman asking him to keep watch on her twin sister. The sister owns a sexual consulting clinic so he goes as a patient. Then he starts to watch her in secret. As time goes, he shows signs of voyeurism and obsesses with her. The doctor's sister cancels her request but it's too late. Then he finds out that the doctor wasn't a twin sister but in fact the client herself and he blinds himself. Did Jae-hoon's voyeurism go away or was he a sexual pervert? Or did he really love the doctor?

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So-ra and her friend Woo-yeol call So-ra to a motel to get over the hardship after breaking up with her girlfriend and have a drink. While talking about their breakup, they get drunk on each other and unintentionally begin to be attracted to each other. So-ra and Nara, who fall asleep while drinking, go out on a date to meet her boyfriend Ji-sung, and the two head to a motel. But Nara's unprepared bed for her becomes worried about her, and she calls Sora to explain her situation and make her worry about what to do.