Who's going to let down their guard first? A pretty art tutor VS a muscular and young personal trainer? This sex-less couple's secret tutoring starts now between a pretty art tutor VS a muscular and young personal trainer. Baek-seon and Soo-kyeom are sex-less couple who have been living with each other for 20 years out of loyalty. The two decide to find a hobby for some fun in their lives. Soo-kyeom decides to get personal training and Baek-seon decides to get some art tutoring. Oh dear, they meet handsome and young personal trainer In-hak and pretty art teacher Ji-won! The couple is soon more interested in getting action than getting lessons. What will be the end of their secretive lessons?

This is a love story between Jin-kyeong who obsessively indulges in Min-ah’s body and Min-ah who feels love and friendship at the same time. Jin-kyeong mentally and physically comforts Min-ah who is going through a hard time after her boyfriend disappears. Min-ah is relieved Jin-kyeong is there. One day Min-ah meets Yoon-jae, a student and is mesmerized by the fact that he looks and smells like her ex-boyfriend. Yoon-jae seduces Min-ah and harasses her.

Yuner, Liu Ren, and Zhou Xian are college girlfriends. They went to the holiday house to take pictures and swim together during the holidays. However, the three women soon became bored. Yuner came up with the idea of seducing men and happened to encounter a handsome sports car The passing Shi Yu and the senior asked the three women for directions, and Yuner handed over the phone number to the two men, and this extraordinary experience began …

Doyle is a white man. Although friends suddenly worry about Doyle who is losing weight, Doyle says he is on a sex diet. Friends who don't believe Doyle's words. Doyle yields to Jung-woo about the woman's call to her. Jung-woo, who had an easy relationship with a woman, has since followed Doil as a teacher. He listens to Jeongwoo Jindo and takes Doyle as a teacher. Doyle gets a meal from his friends and tells her a secret every time she eats...

Sae-hee couldn't go to sleep from the first day in her new house because of the moaning coming from next door. Sae-hee has never had sex before, but she's writing sex novels. Playboy Seong-hyeon was getting tired of his sex partner Jia when he finds out that Sae-hee is a sex novelist. He begins to help her with her work but really he's using that as bait to get into her pants and he does. Will Sae-hee be able to complete the novel?