Du-shik, a young mobster aiming for a promotion,
must earn a high school diploma.
He enrolls as a 19-year-old, aided by his right-hand man Sang-du and sidekick Ga-ri.
At school, he befriends Yun-ju, a bright student facing financial hardship, and witnesses the school’s corruption.
When Yun-ju is forced into a degrading job for tuition,
Du-shik investigates the principal, uncovering his ties to a rival gang. After an exposé leads to Yun-ju’s brutal beating, Du-shik reveals his gangster identity,
leading his crew in a brawl against the rival gang to expose the school’s corruption.
Though arrested, his actions lead to positive change, and his boss suggests further education.
