The Chairman is Level 9

Na Yi Soo, a legendary fighter who beat 16 guys by himself, gets an offer to join a gang but turns it down.

Ba Tang and Yi Soo go up to the rooftop and Yi Soo is forced to solve current event questions.

Yi Soo saves Eun Bin from falling off the roof and the students' opinion of him change for the better.

Yi Soo faces Dae Hee and the bullies, but Ba Tang chases them away with her Taekwondo skills.

Ro Woon finds himself getting jealous over Yi Soo and Ba Tang's close friendship.

While carrying Ba Tang to the hospital, Yi Soo recalls his traumatic childhood memory.