Min-sang and Yoo-ra is already married for two years. Min-sang lives with his wife Yoo-ra and her sister Yoo-mi. Min-sang used to live alone because his parents died early, and Yoo-ra lived alone with her younger sister after their parents died in an accident. Because of this mutual understanding, when they were introduced to each other through a dating agency, they became attracted to each other, and they even got married... I'm starting to feel more and more like a woman.

Man-soo who is dating Kyeong-ja is heavy-hearted because he has been unemployed for a long time. One day, he receives and unknown package and finds an ona hole inside. That night, the ona hole fairy appears in a dream and had a love affair with Man-soo. Man-soo thought it was just a dream. The next day, Man-soo got a call from his childhood friend Yeon-sil, drank while depressed, and slept with her afterwards. Meanwhile, that night, Kyeong-ja found a mysterious package with a dildo inside. In Yeon-sil’s dream, a dildo fairy appears and has a love affair...

Hee-soo goes to her ‘rich lover Seok-ho’ while her husbands is on a business trip. Her younger brother Hee-yeong and her husband Jeong-tae are also together. Hee-soo introduces Seok-heo to Hee-yeong and Jeong-tae, and Seok-ho falls in love with Hee-yeoung at first sight. As Seok-ho tries to avoid Hee-soo’s eyes, and meet with Hee-yeong’s eyes instead, he decides to take advantage of Jeong-tae. Jeong-tae who dreamed of having sex with Hee-soo, seduces her, and while Hee-soo and Jeong-tae were playing, Seok-ho wins and took Hee-yeong as price. These people who are complicatedly intertwined, are at a crossroads to choose whether to disperse or become a new family.

Yoo Ni, a college freshman, goes on a blind date with Min Cheol, a senior. Though initially attracted, Yoo Ni later wants time apart. Her friend Hee Jin introduces her to Ah Ra, a skilled seductress, who trains Yoo Ni in sexual techniques.

Seong-hye of Room Salon Ace Inn is tired of the rich men who always run at her. One day, she feels shaken by the appearance of innocent Jae-min, but due to interruption of Dong-cheol who admires Seong-hye, she gradually falls into a deep pit.

Ji-min is married to Hyeon-soo, a married man with a child. However, Woo-yeong wasn't Hyeon-soo's own son either. The age difference is so small that she feels uncomfortable in her relationship with Woo-yeong. On the other hand, Woo-yeong falls into a sense of self-doubt that she feels love from Ji-min and that feeling from her mother, but accidentally finds out that she is an adopted child and confesses her heart to Ji-min.

Ji-min, Hyeon-soo, and Woo-yeong, play together at Ji-min's house. Hyeon-soo happened to see Ji-min change her clothes while playing. Hyeon-soo, who secretly likes Ji-min, ran away excitedly after seeing Ji-min's skin. Woo-yeong, who saw Hyeon-soo like that, actually made a funny suggestion to Ji-min who was his sex partner. Ji-min calls Hyepn-soo and uses the fact that Hyeon-soo likes him to have sex. Hyeon-soo moves according to Woo-yepng's plan.

Before Ji-min becomes a college student and gets a room, he comes to his old brother's house. Hyeon-soo found out about the fact late, but he is embarrassed, but feels at ease with Ji-min. However, Ji-min, who became a woman from a little girl, became more and more fond of her. But Ji-min had a boyfriend and Hyeon-soo tried to calm himself down, but while comforting Ji-min who broke up with his boyfriend, he heard that he was Ji-min's first love.