Insa

Tae Soo is a Kung Fu fan who lives on a remote island with his grandfather Kim Yeong Gam, will come to Seoul along with his uncle Ik Seong who suddenly came. Tae Soo, who had a happy life in school, making friends for the first time in his life had to deal with the school bully Min Hyeok through Kung Fu.
(Source: MDL, HanCinema)