The Art Of Fighting (2005)

Song Byung-Tae (Jae Hee) is a quiet, shy guy, making him the perfect target for bullies at his school. In fact, Byung-Tae is beaten up daily by bullies. He then reads books on martial arts and fighting techniques to one day combat his tormentors, but it doesn't seem to help. Byung-Tae then comes across a strange man named Pan-Soo (Baek Yoon-Sik). Pan-Soo is a former legendary brawler, but now keen on keeping a low profile until he can leave the country for good. Pan-Soo notices that Byung-Tae has potential as a fighter. While, Pan-Soo at first blows off Byung-Tae's pleas for help. A change of heart leads Pan-Soo to train Byung-Tae in the art of fighting.