庆秀的继母智恩拥有二十岁般的美貌和性感魅力，让庆秀无法忍住对继母的爱。庆秀偶尔会偷窥父母的性生活，他对继母的欲望也愈加强烈。某日，庆秀发现继母偷偷找炮友上床，觉得自己遭背叛的庆秀，向继母提出一项提议……

When I was a high school student, my sister was a sexy friend who kept me from falling asleep with all kinds of delusions every night. Min-soo's thrilling delusion catches fire after she accidentally meets her naked sister at home. After becoming an adult, Minsu and his friend Yong Joon get a job at a sister company. From her sexy friend, Minsu's secret work towards her, who is now reunited as a sexy female warrior, begins...

Hyeri and Ji-yeon are friends in the same neighborhood. They have a son to go to the army after some time. One day, Min-gu, who was playing at Jun-suk's house, sees Jun-suk's mother Hyeri in the shower and gets excited and hits her. Hyeri, who initially resisted, gave up resistance to Mingu's power, and after that day, the two develop into sex every time they have time. After a few days, Ji-yeon, who accidentally witnessed her son Min-gu and Hye-ri having sex, begins to seduce Hye-ri's son Jun-seok.

Hyeon-soo manages a hostel run by his friend Jeong-ho. It's a hostel for foreign female students. There is a Korean-American from LA, a Japanese who's here to learn Korean out of love for K-Pop and his friend's sister who just happens to be there. These women are very outspoken and Hyeon-soo and Jeong-ho fall for them.

Ji-yeong is a good looking, slim and big-breasted insurance planner who is really bad at her job. Dae-cheol, her school friend, suggests she sells some insurance at the friends' reunion where alot of wealthy friends will show up. Ji-yeong doesn't really feel like it but she dresses up sexily and goes to the reunion. For some reason, her results at work are getting better and better every time she goes to the reunion...

《女友的妈妈/女朋友的妈妈》我的老女人。女朋友的妈妈回来。你的房租承受不了长庆俊街道上赶走。无家可归的可怜他女朋友的智慧是自己家住吧。但智慧之家来接他的女人就是庆俊的初恋。。。。。庆俊自己爱的女人告诉我的女朋友。英智慧的鸟妈妈变成了事实上的混乱，也一样的屋顶下，总是碰到她再一次心动\나의 옛 여자... 여친 엄마로 돌아오다?! 오른 월세를 ᄴ...