Friend Sister

Min-woo, who lives with his older sisters Yeong-ju and Sang-mi after his parents moved to the countryside, one day receives a visit from his college friend, Jeong-su. Seeing Yeong-ju and Sang-mi warmly welcoming Jeong-su, Min-woo feels it was a good idea to invite him over. On a holiday, Yeong-ju takes Jeong-su on a tour of the city. After returning home, Yeong-ju, asking for a reward for being his guide, seduces Jeong-su, which Sang-mi witnesses. Although she is still a virgin, Sang-mi has always been interested in men, and she decides to take this opportunity to have sex for the first time with a man. Later that night, Sang-mi secretly sneaks into Jeong-su’s room while he is asleep, and after waking him up, seduces him into having sex. However, Sang-mi finds that sex with a man wasn’t as good as she had imagined. A few days later, Jeong-su leaves, saying goodbye to the sisters..