Private Professor: Three Women's Sex Class

Jeong Hoon broke up with his first love Seo Yeong due to opposition from his parents. He has no choice but to marry Mi Na, whom her parents introduced, and Seo Yeong commits suicide because she cannot overcome the pain of separation. Although a lot of time has passed, Jeong Hoon tries to forget Seo Yeong and falls into the illusion that he is living with Seo Yeong, who died while struggling. Mi Na, who finds it hard to stand Jeong Hoon's behavior, seduces Jae Hee, a courier, to show Jeong Hoon, and commits an affair.

A film depicting the revenge of a couple who are fooled by the physical pleasures of a couple at work.

A street hooker named Hyeon-ah (Jeon Yoo-jin) is locked up topless in the pension of a man named Jeong-ho (Heo Dong-won) who saved her from her pimp's abuse and beatings. She was locked up for no reason and every time she struggles against him, he hits her. A couple visiting the pension find Hyeon-ah and the man who wanted to rape her is killed by Jeong-ho. Hyeon-ah tries to run away from him but realizes she has nowhere to go.

A highly stylized morality play presented as an erotic drama.

Jeong-woo, who is newly married with Na-yeong, is secretly meeting Na-yeong's close sibling, Min-joo. Na-yeong, who is not aware of that fact, is worried that she is alone and tells him that he will introduce a good man to him, but she disappears when she tells him that she does not need a man and tells her not to do unnecessary things. Meanwhile, Na-yeong, who came home, tells this to her husband, Jeong-woo, but Jeong-woo also shows a grim reaction and does not care about it. Then one day, Min-joo visits Na-yeong's newlyweds in surprise, and the three of them fall asleep while drinking happily. While sleeping, Min-joo comes to Jeong-woo and does something amazing. A fierce love between a close brother and the man of his sister is just beginning.

Doyle is a white man. Although friends suddenly worry about Doyle who is losing weight, Doyle says he is on a sex diet. Friends who don't believe Doyle's words. Doyle yields to Jung-woo about the woman's call to her. Jung-woo, who had an easy relationship with a woman, has since followed Doil as a teacher. He listens to Jeongwoo Jindo and takes Doyle as a teacher. Doyle gets a meal from his friends and tells her a secret every time she eats...

Na-hee spends a day with alcohol after parting with her lover, Ji-hoon. Min-yeong knows and tries to take care of Na-hee. However, Na-hee does not forget Ji-hoon, and in fact, Ji-hoon and Min-yeong, who was former partner, have a relationship with Ji-hoon, who came to Na-hee. Na-hee, who is not aware of this fact, contacts Ji-hoon again, asking for forgiveness.

Na-yeong and Min-hyeok become lovers and have a relationship, but they live together on the premise of marriage. At their first housewarming, the two invite their friend Jin-woo. Jin-woo, who is invited, keeps telling bad stories to Min-hyeok, and Min-hyeok, who is only gentle, thinks it is just a joke. Meanwhile, Na-yeong who is angry at Jin-woo's appearance, talks with Jin-woo about Min-hyeok, who is asleep. However, there was a hidden past between Jin-woo and Na-yeong. In fact, the two were sex partners.

A woman rejects her clingy female lover and pursues a female co-worker. The spurned lover plots revenge and the co-worker has a kinky secret.

Sawako enjoys taking photos of older men and making scrapbooks with them. Although the men she has dated have always been older than her, she has been unable to speak well with her father and they have grown apart.

Hazuki clips her nails every time it rains. She caressed 'her' with these fingers back then. Hazuki, an editor of a publishing company now, is attracted by Shiori, the head of planning. On a day when the two women soaked wet in the rain, they enter an motel for shelter and take a shower. There Hazuki sees the image of her lost "girlfriend" in Shiori and eventually they reach out to each other.

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.

Crystal remarried to husband with son. She's just a little bit different. She's trying to get along with her son Sewoong, he doesn't easily open his mind. One day, Se-woong and Dad's friend witnessed the cheating scene. After that day, whenever she sees a crystal that is lonely without her husband, it's starting to look like a woman...

So-yeon is on a weekend date with her boyfriend, Ji-seok, and then she invites him to her house to save money on the motel. Her step brother, Sang-woo, comes home earlier than expected and sees them having sex. He records them secretly and plans to blackbail So-yeon with it.

Mi-na enjoys rough sex and she's currently sex partners with Woo-yeong, who she met on a one-night-stand. Mi-na's best friend, Jeong-hee, coincidentally witnesses Mi-na having sex and opens up to a new world. One day, Jeong-hee is invited by Mi-na to watch her having sex with Woo-yeong...

Newly married couple Eun-mi and Seong-soo look ordinary, but they both have their own secrets. Eun-mi enjoys calling her boyfriend to her home while her husband is away on work and Sung-soo enjoys watching his wife have sex with other men through the CCTV in his house. Not being able to get over the excitement he feels by doing that, he tells his wife everything and suggests she has sex with another man again...

Jane is 10 years into a relationship and runs an underwear shopping mall. She is tired of her boyfriend and concentrates more on her work until one day she asks a nameless photographer named Hyeong-sik for some pictures to be taken. Hyeong-sik agrees to her after seeing her body. The two stick to each other with the excuse of 'work'. In the end, Jane starts romancing with Hyeong-sik too...

Nineteen-year-old, Jin-goo enjoys an erotic moment to himself while thinking about his pretty English tutor. Then one day, he is caught in the middle of an embarrassing moment and becomes awkward with her. However, this becomes an opportunity and she starts teaching him sex. Their replationship becomes an uncontrollable romance. However, she quits the tutoring and the relationship to get married. Time goes on and Jin-goo is a grown up. He's used to thoughtless sex. However, his partner of benefit gets pregnant so he meets his future-mother-in-law to talk about marriage. However, she's so beautiful and sexy. He moves in with the in-laws but soon breaks out of the marrige due to his wife's fling. The mother-in-law doesn't know how to make it up to him for what her daughter has done. Jin-goo suggests something dangerous...

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...

A university student travels to a popular resort in the mountains for a summer job as a waiter and becomes romantically involved with an older woman from a wealthy family.