Mutual Relations (2015)

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'

Da-hee gets married to Min-soo who is older than her. Thanks to him, he also gets a son who is not too old, Jae-hyuk, who she tries to get acquainted with, albeit awkwardly. After staying with Na-yeon, she suddenly has to meet Jae-hyuk, and Na-yeon has a date with Jae-hyuk. Min-soo is surprised to find three people coming back home from a date. It made him angry to see his son with two women. Right away, Min-soo seeks Da-hee and asks about Na-yeon. Na-yeon met Min-soo secretly. However, Da-hee who is aware of Min-soo and Da-hee's relationship, shares this fact to Jae-hyun.

Min-wook loves his roommate friend Yeongsu's older sister, Sujin. However, Sujin will soon marry a man who meets the condition. I try to hide my heart and wish my sister happiness, When she sees her divorced a few months later, the old feelings come back to life. Soo-jin, who is divorced, will stay in her sister's house for the time being. Min-wook and Su-jin, who have been in one house, are now trying to confirm their love for each other...

Jin Hee is a female urologist who runs a urology department with few patients. One day, a new nurse, Yeon-hee, comes in and works. However, she throws her her whole body in the treatment of patients with an unusual professional spirit. This fact is quickly rumored and patients flock in. Skilled female doctor Jin Hee also starts hot treatment to save the hospital...

After Jae-won goes back to school, he can't find a place to stay so he ends up renting out a room in his mother's friend Hee-jae's house. Hee-jae's daughter Yoon-young has grown up to be a mature young lady. One day, Yoon-young uses school exams as an excuse to stay over with her boyfriend and Jae-won brings his girlfriend to the house. Hee-jae thinks something is going on and interrupts. Meanwhile, Yoon-young is not entirely happy with sex with her boyfriend and has other thoughts when she sees Jae-won. She starts seeing him as a man. In the end, she calls him to her room in the middle of the night...

An honest, open look at the sex life of erotic film actress Lee Chae-dam. She reveals her first love, her first experience, her first film, her sex lifestyle, and her love of her body.

Ju-seong, Min-gyu and Hee-jin live in a boarding house run by Man-seok. One day, Claire, a blonde, Czech, boarding student comes in. To adjust to her new life in Korea, the boarding men help her but it turns out that she’s liberated. The truth is that the men in the boarding house were all approaching her…

Yoo-jin and Myeong-seok get a call from Hye-jin in the middle of the night. She finally escapes from domestic violence and comes to live with her sister. However, Myeong-seok is nice to her and Hye-jin starts to feel fond of him...

Minsu quits the company if he takes it because he is far from home. So, as a special measure, I will stay at my friend's house for a while. Min-soo falls in love with Jae-seok's older sister Yoon-jung at first sight. Meanwhile, Jae-seok decides to start living with her girlfriend Hae-ju at home. Min-soo and Yoon-jung are alone, and love grows...

Mi-yeong, who lives in the backhouse comes between the strong friendship of Deuk-chan and Cheol-soo. Mi-yeong is usually blunt and cold, but in bed, it's a different story. Deuk-chan approaches her with love, but Cheol-soo only wants to remain sex partners with her. Meanwhile, Deuk-chan who loves Mi-yeong had an old sex partner, Hee-jin. Cheol-soo shows interest in Hee-jin. The love story of two youthful men and women begins...

Cha-wook and Min-joo are about to get married. Cha-wook proposes a couple trip to Yong-woo’s wife who is his junior at work. Ji-yeon doesn’t like uncomfortable trips but Yong-woo’s boss forced her. The trip has been decided and Cha-wook plans to stay with Ji-yeon, who he’s been eyeing. Min-joo is forced to join. On the day of the trip, Min-joo finally tells everything to Ji-yeon and Ji-yeon decides to use Cha-wook.

So-ra, a woman who lives day by day meeting conditions. Hyeon-soo, a man obsessed with women's scent. Upon Hyeon-soo's suggestion to sponsor her, So-ra maintains a lover-like relationship with him. Sora and Hyeon-soo as couples seduce men for fun, enslave them, and then destroys families. Once, while seeing a happy couple in a chicken restaurant, So-ra felt jealous and wanted to break that happiness. So-ra and Hyeon-soo decide to seduce the husband and brings him to their guest house after several delivery exposures. In the end, the couples swap together with Seok and Hyeon-jin at a chicken restaurant. Can Sora's plan succeed to destroy ordinary couples?

Seok, who wants to try perverted sex, pesters Hyun-jin every day, but Hyun-jin rejects it saying she only like normal things. And then one day while delivering chicken, he found So-ra and Hyun-soo, a couple who enjoys delivery exposures. Frustrated as he is with Hyun-jin, he starts neglecting her and became more and more hooked with the So-ra couple. To recover their relationship, Hyun-jin goes on a date with Seok. But then a call came for him. The couple invites him for sex. Will he be having a date with his wife, or will he accept the invitation he may only get once in a lifetime? What would be his choice?

Hye-won, Hee-jung and Joo-hee are university alumni. Everyone is envious of Hyewon who got married first, Hyewon, who has no marital relationship, is more envious of her unmarried friends. Hee-jeong gives her friend Joo-hee, after being proved by Sekpa Min-woo. Hee-jung has an affair with her boss. Hyewon and Joohee discuss changing husband and lover to try. Joo-hee is flirting with Hye-won's husband. Hye-won is attracting Joo-hee's lover. Couples swapping each other and swapping. They break up, promising to meet again.

A son invites his friend over to take care of his mother and lines are crossed that shouldn't be..

Ae-ra who has been living as a a chauffeur for women is often deprived of her own money by her husband who takes them away. To earn 30,000 won, Ae-ra, did whatever the boarders wanted, and then one day, she received a strange offer from her husband. Her husband who used to swear a lot started to have her for rent through SNS to raise money for gambling, while she feels like she's going to die every day. Then one day, a certain fate comes to her...

Sang-min's girlfriend Eun-jeong, is a nude model and takes photos with a stranger in a motel naked. Sang-min who doesn't believe in free-spirited Eun-jeong, after drinking in three groups with her close friend Jae-hoon,, comes home. Sang-min, who noticed that Eun-jeong is quietly flirting with Jae-hoon, asks if he wants to do with Jae-hoon while having sex with Eun-jeong. When Eun-jeong actively responded, he made Jae-hoon go into the room where Eun-jeong was sleeping.

Yoo-jeong, who was in a relationship with Hooni, has a problem. It's sex, For her, sex is always simply an act of uninteresting love. But after hearing the words hurt by her lover. In search of a secret tutor of sex, you will be born again from a sex beginner to a sex scene.

Tae-hun, a young and sexy aunt and a nephew of the nephew, a college student full of desires, begins and imagines her own college life alone. As he enters, he sees the owner's mature body and beauty and is happy to board. One day while she was drooling while looking at her sexy aunt Kyung-suk on her immaculate skin, while she sneaked into her aunt's room, she saw her aunt on the Internet. After that, Tae-hoon solves her desire by looking at her aunt's friend, but Tae-hoon becomes increasingly eager for her. Min-wook confesses his concerns to his friend Min-wook, and Min-wook proposes to commit his aunt with his aunt's friend. Tae-hoon, who came back home, comforted himself while looking at his aunt's friend as usual, and suddenly opened Tae-hoon's visit and entered Kyung-suk! Can Taehoon really have sex with his aunt?

Typhoon and Taeyang brothers are sharing. The visitor today is Jessica from LA. Applying for an idol audition is her purpose. She is so cheerful and open to the burden. The fatal temptation of a strange woman who appeared one day and the fate of the brothers shaking in front of her.