극한수업 2

Jung-sik helps out a friend and finds himself attracted to his friend's mother. After being caught steeling the mother's underwear, he becomes the victim of the mother's seduction.

Two successful, beautiful women compete for status by involving a handsome student. Will they succeed in their games and seduction?

Young-ran is getting married to Beom-soo in a month. To test her man, she encourages her friend Yoon-ji to seduce him, but Yoon-ji has secretly liked him for a while. Finding her chance after a few drinks, Yoon-ji sleeps with Beom-soo, which Young-ran witnesses in shock...

Seol-hwa, an aspiring celebrity, is envious of her younger sister Seol-min, a celebrity on top of her game. Seol-min, however, is not afraid to use her body to not miss any opportunity. Seol sisters' road to stardom begins.

Dong-woo enters the boarding house per his friend Tae-hoon's introduction. The landlady, Yeong-joo and her daughter, So-hyeon accepts Dong-woo warmly and had a welcome dinner together. After a few days, So-hyeon finds Dong-woo unpacking his stuff as she enters his room...

Tae-gyu and Na-yeon have been dating for a year. She introduces her close junior, Ah-joong to Seo-jun. However, Seo-jun who prefers older ladies meets Na-yeon and had a one night stand... Na-yeon comes to ask Tae-gyu for forgiveness, however Tae-gyu was not home, but his twin, Jae-gyu. Na-yeon who has been dating Tae-gyu never once heard of Jae-gyu, and thought he has been lying from anger. However, after seeing the twins' picture, Seo-joon confirms that they were a twin and inevitably believes. Could it be true?

Seo-ra, an elegant woman from Louisiana, U.S., marries businessman Kyeong-han who does anything to make money. Kyeong-hwan was in a relationship with Mi-yeon, who was a bar madam, but after his marriage to Seo-ra, he tells Mi-yeon that he will now live as an elegant businessman. For Kyeong-hwan, however, there was a problem of sexual desire and madness when he saw clothes with no underwear in sight. One day, Seo-ra's biological daughter Yoo-na, appeared at Kyeong-hwan's newlywed house in a short skirt.

A young man prepping to take the exam to become a police officer is dumped by his lover and takes to a late night bar to drown his woes in drink. There the bar owner and her ladies the stunned and heartbroken young man away.

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?

After romantic troubles at the hospital, a young man quits his job and heads down to the country side.

Jung-sik and Ji-young got married after a hot relationship, but it has cooled down. One day, Yoon-soo and Sun-young move in next door. They have been married for 5 years, but still look like they're madly in love. Ji-young talks to them about her problems and they decide to help her sex life.