Kim Su-gyeom

A science fiction thriller that depicts all students across the country fighting against unidentified objects ahead of the CSAT and fighting for extra points. (imdb)

Yeon Shi-eun is a model student, who ranks at the top at his school. Physically, he appears like a weak boy, but, by using his smarts, tools, and psychology, he fights against violence that takes place inside and outside of his school. (imdb)