The boss, who received a report on the sweet love line between his wife, Min-ji, and Sang-hoon, whom he believed in, gets extremely angry and comes to Saipan with his wife, ordering a killer to kill Sang-hoon. However, Min-ji, who has already fallen in love, sacrifices herself to Sang-hoon After buying time to escape, Sang-hoon survives and confesses to the boss about the relationship between the killer and the boss's wife.

An erotic film that deals with the sexual pleasures of various men and women surrounding the magic diary.

Yeon-hee, who hasn't changed her hair and isn't ready for the first night, gives sex advice to her friend over the phone and calls her boyfriend over to have sex. Unlike the first time, he is overflowing with libido and visits her office to have sex. Ji-ho is worried about her girlfriend. Although they are friends, Chae-ah and Seon-woo end up having sex after drinking during the day. Different sex stories of 4 couples.

Hyeon-goo introduces Seung-mo to the local area, probably feeling sorry for Seung-mo, who lives under his wife's nagging. However, Hyeon-goo's purpose is to divert Seung-mo's attention and meet Seung-mo's wife, So-hee. After spending time with different people, So-hee and Hyeon-goo's feelings change.

A man has an accident at work, and his boss asks his wife to have sex with him in order to free him from responsibility. One day, the man witnesses a scene where his wife has sex with his boss and decides to take revenge by doing the same to his boss' wife.

Ga-hyeon, a graduating student, visits her professor Min-cheol to adjust her grades. Min-cheol promises to adjust her grades on the condition that she helps him...

The boss asks his wife to avoid Saipan, where he and the other members of the organization are, because her secret mistress is there. However, Min Ji falls in love with Sang Hoon, a member of the organization who was also there. The boss, who won't believe Min Ji, sends the killer to investigate the situation, and after the killer arrives in Saipan, he reports their movements to the boss one by one.

Jeong-ho fights with Ye-rin. He happened to meet Eun-jeong, the wife of a senior who passed away. He tried to win Eun-jeong's heart, who was once his first love, but she has no intentions to date another man because of her husband. Instead, Ji-hye who lives with Eun-jeong falls in love with Jeong-ho. Ji-hye is trying to match loner Eun-jeong with the junior of his husband, Joon-hyeok, but is uncomfortable. Will Jeong-ho be able to love Eun-jeong?

A female college student upstairs who likes big things! Instead of her boyfriend, she became more addicted to sex with the owner downstairs.

So-jin, who has been ignored by her friends because she doesn't have a luxury bag, gets a job as a housekeeper at Joon-ha's house to earn money. When Joon-ha found out about the real reason why So-jin started working for him, he made a secret request to her for the equivalent amount of money she needed.