My Friend's Sister 4

Joon-soo learns that his friend Hee-gyu's sister Hee-jin has no where to go after being scammed, so he suggests living with him. The two start living together. They are close like brother and sister but they can never be that. The two start getting funny and Joon-soo can't go to sleep at the thought of Hee-jin sleeping just a wall away from him. Mi-na, Joon-soo's girlfriend notices Joon-soo changing and seduces Joon-soo at his house where Hee-jin is. Is it the girlfriend or the sister?

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...

Min-wook loves his roommate friend Yeongsu's older sister, Sujin. However, Sujin will soon marry a man who meets the condition. I try to hide my heart and wish my sister happiness, When she sees her divorced a few months later, the old feelings come back to life. Soo-jin, who is divorced, will stay in her sister's house for the time being. Min-wook and Su-jin, who have been in one house, are now trying to confirm their love for each other...

The manager finds a new NF and introduces her to the director. The manager goes around looking for a new actors again today

Hee-jung, a college student, uses up a lot of money on Bitcoin and so she can't pay back her friend, Joo-yeong. Worried, she came to work at a room salon and pays off the money she borrowed. Seeing how Hee-jung is, Joo-yeong tells her she wants to work at the room salon, too. Eventually, they both became aces! Until the vacation ends, they are slowly getting money, their hot services are attracting more and more customers...

Seok-joon has two sons; Min-seok, who is married, and Yoon-soo, who is not. Seok-joon tells them he is going to give allowance and his wealth to his daughters-in-law only. Yoon-soo asks one of his lady friends to get married for Seok-joon's money. Min-yeong and Yoon-jin pretend to be Yoon-soo's girlfriends. Then Yoon-jin falls for Seok-joon. The women visit the house often to get on Seok-joon's good side, and so does Yoon-soo's ex-girlfriend, Min-yeong. However, Seok-joon falls in love with Yoon-jin, and Yoon-soo is very disappointed in Seok-joon, who wants to start a new life...

The special secret to a successful noraebang is revealed! The noraebang where Hee-jin works is for customers who want a call-girl. When they start turning around and leaving, Hee-jin decides to become a call-girl herself and even brings her friend Seong-hee in. Rumors of Hee-jin and Seong-hee's beauty and service quickly spread and more customers come. When they've made enough money, Hee-jin and Seong-hee decide to open their own noraebang and display a hidden special service.

The female boss of adult products opens her own personal channel, thinking that if she introduces her unique experience of sexual masturbation through YouTube, it will attract attention. From product planning to product production, she talks about various episodes and succeeds in establishing herself as her popular YouTuber. The episodes she unraveled vary from an unusual part-timer who tests her products first, including the experience of having sex with her customers at her supply shop, to various stories. ​