Movies by Park Gyu-young
Mantis

Wretches
Jae-young is a high school student who is often bullied by the school’s mob leader, Yong-gyu. When Yong-gyu is hospitalized, Hoon wants to take his place at the top of the school. Jae-young hoped doing away with Yong-gyu would help him escape the tedious violence, but he finds himself tormented and harassed even more under the persistent Hoon.

The Tuna and The Dolphin
Kang Hyun-Ho has never had a boyfriend in her life. She begins swimming lessons at a sports center. There, she develops a crush on Jo Woo-Jin . Meanwhile, Han Yoo-Ra is Kang Hyun-Ho's swimming instructor. He develops feelings for her.