Joo Seung-gi and Yoo Ah-rin desperately have sex several times a day to have children, but they were not pregnant, so they were tested, and the result of the test was Seung-gi's infertility. After much consideration, Seung-gi asks his fiery friend Yoon-woo to have a relationship with Ah-rin, and after persistent persuasion, Ah-rin and Yoon-woo have a relationship. Afterwards, Seung-gi began to doubt the relationship between Yoon-woo and Ah-rin...

Woo-yeol's friend, Do-jin, secretly enjoys a relationship with Woo-yeol's stepmother, Chae-dam. Do-jin enters the house while the superiority and inferiority are gone and has sex with her stepmother. Do-jin's wife, Nara, learns from Chae-dam how to excite a man...

Mi-yeon will do anything to change the mind of her boyfriend, Joon-ha. Then one day, Mi-yeon calls Joon-ha, her friend So-jin, and So-jin's boyfriend Do-joon to her house, and she begins to take off her clothes in front of them.

Unsatisfied with her relationship with her boyfriend, Ji-hee receives a business trip massage through the introduction of her older sister, Mi-yeon. After that, Ji-hee falls in love and becomes obsessed with giving massage services to her on business trips.

Yeon-jeong is a girl crush who has a sexy body and good education. She became a team leader by beating up men her age. Yoo Ah-rin, an intern, keeps getting on her nerves. All she is, is a local university graduate, with a pretty face. A corporate slave! Feeling pity for Ah-rin, who is in charge of her bosses' chores, Yeon-jeong claims to be a shooter to protect Ah-rin from male employees, and Ah-rin, a new employee who thought it was a mugwort, starts to covet her things little by little. Ah-rin, a new employee who she only thought was an idiot, begins to covet her love affairs little by little.

Managers Im Yoo-na and Kang Ji-won looked like an in-house couple. However, Yoo-na will actually marry team leader Byeong-seok who has a heart for her. Even after marriage, Yoo-na can't seem to forget Ji-won. Byeong-seok thinks that he's having a stable marital relationship with Yoo-na, but he can't relate to her feelings. He deliberately invites Ji-won to his home. Byeong-seok's obsession gets worse, and the three hide their true feelings for each other, and the relationship becomes strange.

Kim Hak-cheol is a trashy husband who sends his wife Jin Joo-hee to his friend Kang Min-hyeok as a housekeeper due to gambling debts. He visits his wife once in a while and steals money. He borrows money from Min-hyeok, a golden spooner who is Hak-cheol's friend, on the condition that Joo-hee is sent as a housekeeper. Min-hyeok is kind to his friend's wife, Joo-hee. Over time, the true colors begin to emerge. Meanwhile, Min-hyeok's wife, Nam Gyoo-ri, lives together with them without knowing anything about Joo-hee.

When her husband, who is much older than her, dies, Hyo-jeong, a young mother who ends up living with her one-year-older stepdaughter, Joo-ah, decides to find a male helper. Each one of them brought a male helper, but the mother and daughter were fighting over which of the two they should hire. Eventually, they decided to pick both of them. Hyo-jeong and Joo-ah enjoy a pleasant sex life with their male helpers who match each other's styles. However, mother and daughter get tired of it quickly.

Min-seok, with permission from his girlfriend Yoo-jeong, travels alone over the weekend. He happened to meet Ga-in, the charming hostess at the Rose Motel. The two had a hot night. Next day, upon returning from a trip, Min-seok meets his friend, Yeong-ho and had drinks. Drunk Min-seok tells Yeong-ho about the secret of the Rose Motel.