Scene 1. (Bad younger sister) Min-woo and Soo-mi became family through their parents’ remarriage. Soo-mi still secretly harbors feelings for her older stepbrother, while Min-woo is unable to set a wedding date with his live-in fiancée because of his younger stepsister.
Scene 2. (Midday dream) On a hot day, Gye-hyeong parks his car and takes a nap, during which he dreams of swapping partners with his girlfriend’s junior and her boyfriend.
Scene 3. (Secret sex) Thanks to his wife’s wealth, Sang-hoon works as a building manager — but behind her back, he’s having a sexual affair with her older sister.
Scene 4. (Friend’s favor) Soo-yeon asks her friend Jeong-hee for help reconnecting with the man she went on a blind date with.
