Wang Dokpil, the boss of Jeolhwa, the largest organization in Chungcheong, and his son, Wang Dam. After his father's death, Wang Dam has a different dream than inheriting his father's organization, and decides to head to Seoul on a whim. But life isn't as simple as he envisioned. His uncle, who was a member of the organization, proposes a condition that if Wang Dam becomes No. 1 in his new school, he'll receive a settlement allowance. However, Wang Dam's new school, notoriously known as Ppak High, is infamous for school violence. Can Wang Dam become No. 1 in Ppak High School, the one full of the nation's worst troublemakers?