He joins a bottom-rank class and experiences violence by delinquents led by Jong-hoon (Lee Jong-hyuk), a stereotypical Korean bully.
After the two are chased and caught in their hiding place, one of Hyun-soo's friends Kim Woo-sik (Lee Jung-jin), steps in and knocks out the attackers.
When he discovers that Hyun-soo has been receiving poor grades, he beats him, refers to him as "surplus man" (a derogatory term for a person without a future), and kicks him out of his house permanently.
No longer able to put up with the conduct of Jong-hoon, his gang, nor the brutality and violence of teachers, Hyun-soo trains himself in Jeet Kune Do, inspired by his childhood hero Bruce Lee.
Hyun-soo later attends a movie with Ham Jye-bok and both goof off with mock martial arts over Bruce Lee vs Jackie Chan.