Yoo Ri

Min Jung's husband has been traveling for 300 days and she feels lonely. When her friend Chung Hee moves in next door, Min Jung often visits her house, during which she keeps meeting Jae Ho, Jung Hee's son. After having an impulsive affair with Jae Ho, Min Jung tries to forget about it, saying, "It was a mistake," but she keeps remembering his young body.

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.

In an ordinary-looking house, live the owner couple, Se-kyung and Jung-sik, their daughter,Ma-ri, and Jin-seong who's new to society. The couple is on vacation, and Ma-ri and Jin-seong are alone in the house. One ordinary day, An Uninvited Guest called Soo-jeong comes along. She had a fight with her husband and had come to stay in her brother's house for a few days. However, one night Soo-jeong gets drunk and mistakes Jin-seong's room for hers. As a result, they end up sleeping together. Ma-ri sees Soo-jeong come out of Jin-seong's room, but suspects nothing else. Vegetarian Jin-seong craves sex and sleeps with Soo-jeong once again. However, Soo-jeong goes back to her husband, and Jin-seong can't help but feel lonely. Meanwhile, Ma-ri likes Jin-seong and seduces him to have sex with her, but she's outraged when he tells her he had sex with her aunt. This is the story of the ordinary but not so ordinary, secretive house.

Two beautiful sisters run a cabin in the mountains that is well-known to men as a place of affection. An unknown man near the cabin watches them closely.

Dae-goo likes his sunbae Soo-kyeong, but she doesn't like him back. One day he discovers 3-Minute Partners and passionately has Soo-kyeong as his partner. As he changes, will he be able to succeed in winning Soo-kyeong's love?

A man stays with his father's friend Min-cheol in Seoul as he attends law school. The man has an interest in Min-cheol's young wife, Soo-kyeong, and in her best friend, Yoo-ra.

Hyeon-joon, who was rejected by his ex-girlfriend because he couldn't kiss, met his new friend, Seon-jeong, and after hearing advice from Seon-jeong, Hyeon-joon leaves in search of a kiss teacher.

Four women who are having secret affairs tell their cheeky stories. Four women who haven't had much bonding since they got married, get together. They have nothing to hide from each other. They all enjoy a spa day and talk about things that they have never been able to talk about. They are all having secret affairs with their child's tutor, the screen golf trainer, the man next door and a boy twelve years younger!