My husband almost slept with his sister. Soon after, his brother-in-law, who keeps coming to mind leaves after realizing that he does not love his wife. And the older sister's husband, Jeong-wook, visits the sister-in-law in anger, but the sister-in-law also suffers from not accepting this situation. The two who flirted like that commit another affair, and Jeong-wook soon feels guilty.

Sisters, But It's Okay

A couple have been married for more than 10 years. They have long forgotten the pleasures of the couple's secret sex life. Through an accidental opportunity, Joo-hee has a relationship with the man next door and Kang-in has a relationship with the woman who has moved in. In order to recover the well-dried fountain of pleasure, each other's secret and bizarre affair begins.

Comfortable World of Sex

Office colleagues left for a picnic through their old maid manager. However, their manager had a different goal in mind for the picnic. She takes advantage of the absence of the other employees to attack the male manager. At the gathering place, she gives a signal to achieve her goal once again, but her signal won't reach Kim Joo-im but goes to the male assistant...