"You're the Best Lee Soon Shin" IU lies to her older sister Yoo In Na about her crush.

April 27, the 15th episode of the KBS weekend drama "You're the Best Lee Soon Shin" featured Lee Yoo Shin (Yoo IN Na) worrying about her little sister Lee Soon Shin (IU) after another love confession from Park Chan Woo (Ko Joo Won).

When Park Chan Woo keeps using the excuse that they're just friends to see her and go on dates with her, Lee Yoo Shin says to him, "I can't be your friend. Why do I have to sit there and watch that kind of movie with you? Are you acting this way because I rejected you?"

Park Chan Woo replies, "I don't want to be your friend either. I'm doing this so I could be with you some way or the other. Is it because our families know each other so well? Then can't we just date secretly?"

When Lee Yoo Shin begins to think after Park Chan Woo's another confession, she asks Lee Soon Shin about her feelings towards him. Lee Yoo Shin was worried about her little sister's feelings for him. Lee Soon Shin figures out why her sister is asking that question and says, "I don't like him. He is so not my style. Congratulations sis."

When Shin Joon Ho (Jo Jung Suk) sees the whole thing, he tells Lee Soon Shin, "Forget about that guy, fast." After being hurt from an unreturned love, Lee Soon Shin decides to focus on her acting.