"You're the Best Lee Soon Shin" Kim Yoon Seo's constant attempts to stir up IU.

July 7, an episode of the KBS drama "You're the Best Lee Soon Shin" featured Choi Yeon Ah (Kim Yoon Seo) starting up her fight against Lee Soon Shin (IU) once again.

In this episode, Song Mi Ryung (Lee Mi Sook) tells Choi Yeon Ah to help Lee Soon Shin with her lines. Choi Yeon Ah goes to Lee Soon Shin's room and says, "I came up because mom told me to help you with your lines."

She also says, "I'm only doing this because there is somebody like our teacher" and tries to annoy Lee Soon Shin.

In front of Song Mi Ryung, Choi Yeon Ah acts like she is the best help for Lee Soon Shin but when Song Mi Ryung is not present, she changes completely.

Later on, Choi Yeon Ah tells Lee Soon Shin, "Your abilities show up clearly as soon as you begin filming so do well and don't make me or your mom look bad."