Man-eun is upset with Nam-jin for neglecting his wife's family, but Seon-ju sticks up for him. Meanwhile, Seon-ju's younger sister, Mi-ju, borrows Seon-ju's car for the day but gets into an accident with an incredibly high-priced sports car. She calls Seon-ju to rescue her, and the other driver, Chu-ah, calls her sister Sang-ah, who owns the car, for help.
