Kim Sae-ron is starring in the movie "Bear".
"Bear" is about a physical education teacher named Ki-cheol (Ma Dong-seok) who is assigned to a countryside high school due to an unfortunate incident. Then a student named Yoo-jin (Kim Sae-ron) asks questions about the disappearance of her friend.
Kim Sae-ron is working with Ma Dong-seok for the first time in 5 years. She takes on the role of Yoo-jin who takes on the lead in finding out what happened to her friend.
Kim Sae-ron said, "Yoo-jin says anything on her mind so I'm working on looking bold. Every line she says has a meaning and so does everything she does".