Wretches (2018)

Other name: Escória , Goemooldeul , Monsters , 괴물들

Synopsis: :
The most powerful student at a school is hospitalized after drinking pesticide from a drink container. Yang Hoon then takes over his #1 position at school. Yang Hoon harasses Jae Young and it gets worse. One day, Yang Hoon, who has a crush on Bo Young, gets Jae Young to follow her
Director:Kim Baek Joon