A story of a dance crew and their long-suffering wanderings to bring together their dreams, after a long audition process.

On the first day of school, Sin-woo hears about the dangerous student council who even the teachers avoid. When he saves a kid from being cheated by them, he becomes known as 'one punch man.' After being expelled from defending a friend from the student council's torment, he is invited to join them, which confuses him.

Friendship evolves into something more between two high school students: a playful chaebol heir and the diligent bodyguard who's always by his side.