쉿!누나의 비밀

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.

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...

The ordinary life of an executive’s wife is altered when she begins to attend a mysterious club that serves more than just tea.

Seon-mi hands a name card to Joo-hee who is about to get married, saying that she'll be able to feel sexual satisfaction like never before. Joo-hee experiences something new and starts expressing her rising emotions to her fiance despite the time and place. Unlike Joo-hee who is enjoying this, Min-woo is getting tired. He tries to satisfy her to the best of his abilities and even asks for advice from friends but it's not enough. What is that place that has her upside down like this?

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…

Yexel, an influencer, experiences the best sex of his life when he meets Mina. But their no-label relationship turns to obsession when she learns that he's having sex with other women.

Wol-mae and Bang-ja try to trick Lord Lee's son Lee Mong-ryong and getting a fortune out of him. However, it's not enough for old Wol-mae to seduce Mong-ryong so she gets Hyang-dan, a celebrated gisaeng to approach him. Mong-ryong has to prepare for the highest-level state examination to recruit ranking officials to honor his family, but he's not interested in studying but only in Chun-hwa. Wol-mae and her team lure Mong-ryong into committed lewd activities with women. According to their plan, Mong-ryong falls for it and Wol-mae is dreaming of stealing a fortune off of him...

A girl from church meets a wanderer who she begins to pity. She wishes to do everything for him and he expresses his anger for through world with her. The man's childhood friend soon discovers his secrets and wishes to steal them.

Two wives are stuck in sexless marriages and wish to change that. They turn to a mysterious internet product to help.