Young Older Sister-in-Law

I am a teacher! And you are a student! During school days, the first girl Daebeom fell in love with was a practice teacher. He hit on her daringly but she did nothing but treat him like a child. Grown up Daebeom always wants to see her again and one day he heard news that she will attend this alumni reunion. Daebeom decides to seduce her at the reunion. I should sleep with her!

Hyeri and Ji-yeon are friends in the same neighborhood. They have a son to go to the army after some time. One day, Min-gu, who was playing at Jun-suk's house, sees Jun-suk's mother Hyeri in the shower and gets excited and hits her. Hyeri, who initially resisted, gave up resistance to Mingu's power, and after that day, the two develop into sex every time they have time. After a few days, Ji-yeon, who accidentally witnessed her son Min-gu and Hye-ri having sex, begins to seduce Hye-ri's son Jun-seok.

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.

Jung-tae has become a successful businessman. One day, he calls for a substitute driver, but the driver was Min-goo, the man who married his sexy crush, Yoo-ri. Jung-tae still hadn't forgotten Yoo-ri and learns that life if tough for this couple. Jung-tae suggests something to Min-goo and that is to let him live with Yoo-ri for a year in return for 300 million won and his house.

Joon-soo was dumped suddenly by his girlfriend Sung-eun and is surprised by his father’s news of re-marriage. What’s even more surprising is that his step-mother to be in his ex-girlfriend Sung-eun. This is unacceptable and Joon-soo is in pain until a mysterious woman named Minki appears in front of him. She knows about him and his real mother. She tells him good things will happen to him and leaves after giving him a frame with a picture of a cat. A sexy woman appears the next day and comforts him, making his step-mother jealous. Will Joon-soo get over his ex-girlfriend? Or will they get back together.

Young-hee invites her boyfriend, Geon-woo to her home to introduce to her mom. Her mom’s boyfriend also came and the four of them get together and have a meal. After a few days, Young-hee’s mom accidentally found out that Geon-woo went inside a motel with another woman.

Hye-ran, who has been living alone, has to live with Sang-woo, the nephew of her stepfather who her mother remarried. As time went, Hye-ran begins to feel lust whenever she sees Sang-woo. Even without blood relations, Hye-ran is confused about her feelings for Sang-woo, and she is also certain that her boyfriend, Gi-joon, is involved with another woman. Meanwhile, Sang-woo who had sex with Ji-eun, confessed to her that he was thinking of Hye-ran when they were in the middle of doing it, and then announced their breakup. Sang-woo went home late that night. Upon arriving the house, Sang-woo found Hye-ran in her underwear, pretending to sleep. Sang-woo eventually went in and touched Hye-ran. After confirming how much he wants her, she let Sang-woo take over her body.

Ga-eun and Su-ho grew up like brothers and sisters. However, Su-ho never showed that he likes Ga-eun ever since they were young. One day, Suho accidentally found Ga-eun's diary and found out that she also likes him. Su-ho reveals his feelings to Ga-eun. Ga-eun is not his real sibling, but to protect their parents, she rejects him...

A Vietnamese girl is found drifting in the ocean by a Thai fisherman. He takes her to the hospital where she recovers and eventually becomes his girlfriend. However he owes some loan-sharks money, who then decide to take her in payment.

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...

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…

With her mother's remarriage, Dong-jun lives in his stepfather's house while they are on honeymoon. However, on the first night of living in his stepfather's house, he witnessed his step-siblings, Seol-ah and Do-jin, having sex. Seol-ah and Do-jin are not brothers or sisters, but Dong-jun is shocked at the thought that they are brothers and sisters. That night he dreamed for the first time in years and the next day, Do-jin leaves early and only Dong-jun and Seol-ah were left at home. Dong-jun feels burdened by Seol-ah’s kindness. After a while, Dong-jun, who returned from exercising in the yard, finds Seol-ah taking a shower with the door open. Seol-ah asks Dong-jun to wipe her back. Since they have become families, she suggested for them to shower together, and they had sex.

Sang-woo goes home feeling down after being dumped by Hye-ran. At home, he is surprised to see a strange woman doing the chores. Ji-eun introduces herself as the new housekeeper. Sang-woo feels attracted to Ji-eun, who is open-minded and good looking, but is disappointed to see her act as his father's 'partner'. Then one day, Sang-woo's father passes away while having sex with Ji-eun and Sang-woo becomes an orphan...

Sang-woo is suffering from erectile dysfunction and premature ejaculation, because he is worn out from Ji-eun's strong sexual desires. Then, one day, Ji-eun sends him to a treatment center and the specialist is no other than his ex-girlfriend, Hye-ran. They bicker about past things, but in the end agree to start treatment. Hye-ran manages to bring back Sang-woo's sexual desires with lower body exercises, massages, sexy dances and mental therapy. On the day he is discharged from the center, Sang-woo and Hye-ran share a last kiss, but end up wanting each others' bodies...

Mi-yeon sends her husband away and has been living by herself for 10 years. His divorced son-in-law, Hyun-seong, frequently visits her at home. One day, as they were drinking together, Hyung-seong falls asleep and dreams of making love with her mother-in-law. The next day, he calls his friend Jun-tae. However, his friend is having a wonderful time with his lover, so his loneliness only goes further. When he found himself going back to Mi-yeon’s house again, he told her his dream and Mi-yeon wants to make that dream a reality.

Joon-gi who sends her wife and children to study abroad lives alone. But one day, he was surprised to find someone who came into his house, Mi-na. As it turns out, he got into a real estate fraud... Situation had been tight and it made her stay at home for a while. Meanwhile, her stepdaughter, Yoo-kyeong, who lives in a different house also comes home. She promises not to tell her mom that her stepfather is living with a younger woman. However, when she accidentally found her stepfather and Mi-na having sex, she feels a strange excitement...

Joon-pyo is a troublemaker who just got out of prison, and moves in with his brother Joon-seok and his wife Eun-ha. On the first day of meeting his sister-in-law, she looks calm and quiet, but she actually used to be a member of a high school gang. She hands Joon-pyo some money in return for not talking about her past. A few days later, Eun-ha is furious to see her husband having an intimate moment with her sister. Joon-pyo sees this as his chance and approaches a drunken Eun-ha...

Sang-hee feels lonely whenever she sees her drunkard husband… Whenever her husband comes home late, she is being comforted by Min-gi, the character in the video. Then one day, she learns about a man named Lewis from a business card her friend Mi-yeon gave her, and strange things happen to Sang-hee’s life. Dong-seok, her husband, started to think weirdly about Sang-hee, and Min-gi worries about her because she’s been saying strange things. Unaware who’s telling the truth, Sang-hee is in denial with what’s real, saying that all of this is just a dream. Louis seems to know the situation… Who’s telling the truth… It comes out one by one…