World of Exchange Couples 2: Their Own Secret Techniques

The filming set of a private erotic movie will be shown! Through an acquaintance, a student and aspiring film director So-joong works as an audio boom man at the film set of the erotic movie. So-joong, who met her favorite erotic actor Soo-bin on the set, is engulfed in a strange feeling as she sees Soo-bin acting nakedly in front of her eyes. Seeing director Jang, who had been directing pornography in Japan, increasingly demanding excessive bed scene acting from Soo-bin, So-joong begins to get angry and begins to interfere with director Jang's filming...

Tired of married life, the husband turns to his brother-in-law family who is staying at home an a long business trip. The husband, who only washed his fingers for no reason, attracts Casanova to encourage his brother-in-law's affair. In addition, he planned to lay down his brother-in-law's house as bait, but as things went wrong, his wife fell into Casanova's hands. The husband can't let go of his anger. When he confessed that to his sister-in-law and threatened to divorce, she said she would do anything for her good sister. The husband, who suddenly got a double income, slowly zips down, hiding his joy.

Won-gi lost his wife a long time ago and is running a pension outside of the city. Then one day, Won-gi's daughter and her friend Se-yeong stays in the pension during a break from their school in Seoul. However, Won-gi finds himself attracted to the friend who is so much like his dead wife. Then he crosses a line that he shouldn't have crossed...

Three high school girls. One is experienced, one has fantasies and one is curious. What more will they learn before graduation?

Defendant girlfriend break up the wind, but get abused at work 'paper'. Accidentally discovered in bags of cash to 50 million won. Had trouble holding the money at the end of every trip to the end he left, hitchhiking the midst of a 'coins' in the car to be traveling with them. Dangchan traveling in attractive 'coins' to fall 'paper' to make sex with her​​, but the destination of 'coins' to drop off a bag of money and then find that the two missing. Eventually she found 'paper' is put up in their dajjagojja thief known only to her, Bonnie 'coin' and find the lost bag of money gave his thanks to know that. But gradually 'coins' will return the identity of a little more than give him the money.

Three men and three women gathered around the table and formed couples. While having a wine party and enjoying the moment, one of them suggests for each of them to share a story about their sex experiences. Friends share their stories one by one. They fall into their imaginations of becoming the main characters of the stories that each other tells.

A high school girl and a teacher form a relationship but the man was arrested on suspicion of indecent conduct. Three years later, the man quit his job as a teacher, worked as a salesman for a general company, had a girlfriend, and was about to get engaged. Then, one day, in town, the two of them had a fateful reunion...

A beauty salon is run by the quiet married owner, Ye-won, and her friend So-jeong. The two offer a special service for free for a nice, young male visitor. In order to take over the young men who visit through word of mouth, the two will target them with their own special service...

Since young, Yeon-joo have a crush on her neighborhood brother, Jae-kyeong. Min-soo, had that kind of Yeon-joo in his mind. Whenever she's stressed, she would run to Min-soo A friend. A close secret with a childhood friend and the heart of Yeon-ju who loves him. Will Jae-kyeong be able to accept Yeon-joo as a woman who is younger than him? The unknown love story is just beginning.

Troublemakers Mok-won, Ryu and Hak-moon are far from passing the state examinations. Three female students enter the school during a new spring term and the atmosphere changes. Then one day, Mok-won and Ryu are taken to around the back of the school and molested by an unknown woman. The three of them start an investigation.

Won-jin is unemployed and spends most of his time pleasuring himself and dreaming after Seon-mi. One day, his father brings home a very young wife who will be Won-jin's step-mother, and he hopes she'll be the woman of his dreams.

Jeong-hwa has sex with various sponsors to maintain her popularity in the show biz where sexual favors are a must to survive. However, her schedules get cancelled while she goes out giving more sexual favors. Then she meets Yuni who became a celebrity because of Jeong-hwa and she tells Yuni what to do to survive in the show biz...

Jun-yeong and Sook-hyang, who have been married for 5 years, are a couple who seem to be unhappy. Because of Sook-hyang's insensitivity, their marriage weakens. One day, Sook-hyang met her first love, Yeong-min and his wife, Mi-seon. Sook-hyang receives a shocking invitation to have sex together...

One day, Min-sang who is not that handsome becomes a huge success because of a webtoon. Then he gets a sexy wife, Yu-ra, for himself. Min-sang is having a dream-like marriage with Yura. It has been a perfect day except for his sister-in-law Yu-mi, who hates her ugly self. Accidentally, he learned of his wife's dark past through his sister-in-law's diary, and this leads to a reversal of the relationship with her sister-in-law. Min-sang began to demand excessive demands from his sister-in-law, and Yu-mi began to accept them. Where will the end of the relationship between Min-sang, Yu-ra, and Yu-mi lead?

Seung-hee lost her parents when she was young and is raised by Joon-seok's father. Years pass and Joon-seok and Seung-hee get married and become a couple. Realizing that he married out of familiarity, Joon-seok meets a new woman. Seung-hee knows that Joon-seok is cheating on her, but she doesn't want to see Joon-seok and her lover happy with each other, so she persists. Seung-hee, who was somber, became acquainted with a photographer she met by chance. The two spend happy days, and Seung-hee decides to divorce him.

Hyeon-joo and Seo-hee work at a karaoke right before they went bankrupt. The two plan a hot service to save the store.

Woo-seong, a freelance translator, relieves stress by having sex with his sex partner, Ji-yeong, whenever things get stuck at work. Ji-yeong provides Woo-seong with a new type of sex every time. One day, Woo-seong meets his college senior, Cheol-min, and is invited to come to his house. He learns there that his former lover, Hye-ran, is now his senior's wife. Woo-seong awkwardly calls Hye-ran her sister-in-law, and together with his current girlfriend, Mi-jin, the two couples drink and have a good time. The following day, Cheol-min leaves for work. That evening, Woo-seong and Hye-ran resolved a misunderstanding from their past and ended up having sex. However, they are caught by Mi-jin, so she decides to seduce Cheol-min as revenge. From that day on, the four met occasionally and enjoyed swapping partners.

Cohabitating brother and sister continue their relationships with their lovers from the first two chapters with more teasing of “will they or won’t they”. The third in the "Pink Curtain" series by George Akiyama, which depicts a forbidden love with the power and delicacy of the previous films!

Yoon-hee, Hye-kyeong, In-chang and Sang-joon get together for the first time in a while one winter. The men pay more attention to the girls than snowboarding. After a day of fun-filled snowboarding, the four of them drink all night. In-chang and Sang-joon give the women tips on the sport, and everything is well. The beer runs out, and Sang-joon and Yoon-hee head to the store together, while In-chang and Hye-kyeong stay behind. Led by lust, they start creeping up on each other.

College student Sujin is meeting a sponsor. After losing her part-time job, she invites her friend Seo-seo to become her sponsor, and the two share how to excite a man.