What's the name of this Korean film? Does anyone know?

promise

Classmate is a Korean action film, directed by Shin-woo Park and starring Cui Shengxian and Jin Youzhen. It was released in Korea on 20 13+654381October 6. The film mainly tells the story that the protagonist is forced to become a spy because his sister is kidnapped and disguised as a high school student lurking in a middle school in South Korea.

Stage photo

M: Cui Shengxian? Decoration? Li Mingxun/Dahao Jiang

Hope to adopt.