Twenty

Seong-soo hasn't had any physical contact with his girlfriend yet after 6 months of being together so he's always excited to see her. One day, Seong-soo succeeds in getting Min-ae into Rose Motel. When he is about to shower, Seong-soo discovers a small hole in the wall leading to the next room and watches the couple next door having intercourse. Seong-soo continues to watch out of curiosity but realizes he just watched celebrity Sara giving sexual favors to a big shot politician...

The shy owner of a butcher's shop falls in love with Shin Hye, the owner of a jewelry shop and the object of desire of every man in the marketplace. He works up the nerve to propose to her and, after taking time to think about it, she accepts. On her way to tell him of her decision, Shin Hye is chased by a strange man. Rushing into the butcher's shop, she grabs a knife and stabs her attacker. When the police arrive, everyone who witnessed what happened feigns ignorance or tries to cover for Shin Hye.

Yeon-woo is a 24-year-old youth working at the post office in a small town. She's in the golden age of her days, except she has an innocent and introverted personality, and she's far from the usual storm and gale of life. She's hasn't even tried drinking yet, let alone coffee and those around her consider her still young. However, she's completely different from her family. She has an irresponsible father, an impossible brother, a shameless grandfather and a very young brother. All they ever care about is...women. Her father is already head over heels for a woman from out of town and her brother is also after the girl working at the coffee shop. Her grandfather, who's after a granny at the nursing home and her youngest brother whose heart is out to the teacher, are nothing compared to her father and brother. The only person who deserves to be called the breadwinner of the family is her mother who runs a salon.

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.

Min-Soo is an elite fencer, ranked among the world's best. He is popular among women due to his good looks. His girlfriend is Ji-Ye. They have been friends since they were in kindergarten. Now, Ji-Ye gets tired of Min-Soo, who wants to have sex all the time. Min-Soo, though, has no problems finding a new partner, but Ji-Ye has troubles finding a partner due to her inexperience. One day, Ji-Ye meets Dong-Joon and feels something different for him. Meanwhile, Min-Soo realizes that he really loves Ji-Ye and decides to get her back.

In the middle of the Joseon times, Song-do's gisaeng Jin-yi was skilled in painting and caligraphy. Unlike other gisaengs, she was also intelligent and well educated enough to be called the best out of the Best Three. Byeok Gye-soo is is a scholar who comes down from Hanyang to attend a ball. Unlike his rowdy friends, he has integrity and loves to be around nature. He hears about Jin-yi and his friends get him caught up in a bet that he won't be seduced by her...

Highschool student Myeong-ju dreams of becoming an actress and begins sleeping with the equally young Seong-ho who wants to be a movie director. Myeong-ju is convinced its love, but Seong-ho is more interested in filming her naked. When Myeong-ju's mother walks in on them having sex, it's the end of Myeong-ju's dreams and the beginning of a harsh reality

Nineteen year old Hyun Woo is thrilled when he meets his new art teacher Seon Ah, who happens to be his longtime boyhood crush. The two first met when Seon Ah was teaching as an assistant at Hyun Woo's middle school and ever since, Hyun Woo has held a special place in his heart for his 27-year-old teacher. One day, Seon Ah gets into trouble after being caught smoking in a classroom by a fellow teacher. But when Hyun Woo readily takes the blame for her misdeed, the two become closer than ever. Trapped in a relationship that has become boring, Seon Ah finds Hyun Woo's innocence and raw passion irresistible. As love between the two takes center-stage, reason and morality took the backseat.