Part 5/8:
As Ji-hoon and his friends—Biomsiak and martial arts expert Hyun-wook—face increasing threats from Sugiyam and the gangsters, their bond strengthens. They come together not just as classmates but as comrades against a common enemy. The series depicts how adversity fosters solidarity, as Ji-hoon starts to step out of his introverted shell, participating in group dynamics he previously avoided.
The boys embark on a mission to gather evidence against the criminal activities led by the gangster Gil-Sue, further showcasing their growth and determination to combat wrongdoing. This subplot highlights elements of bravery and camaraderie, reinforcing the theme that true strength lies not only in physical prowess but also in cooperation and support.