Tae-young is a former fighter who now runs a relatively legitimate disco club business. He has a best friend named Joon-suk who runs a bakery with In-hye and is always ready to help Tae-young. When Tae-young refuses to let drug lord Ma Gun-soo use his disco club as a place of business, Gun-soo injects him with drugs and sets him up to the police. Tae-young serves time for a crime he did not commit. After his release, Tae-young attacks Gun-soo's son Tae-ho. Gun-soo retaliates by attacking Joon-suk and In-hye. He tortures and kills Joon-suk. Having lost everything to Gun-soo and his men, Tae-young plans one final battle. He alerts the police to come at a specified moment and prepares for a fight to the finish.
Hye-joo and Eun-kyung vie for 1st place in school. Tae-ho, who's tormented by his parents who incessantly nag about grades, has a crush on Hye-joo. The two girls begin an earnest struggle for the top score as they prepare for the final exams. But when Eun-kyung sees Hye-joo, who's been too sick to study, cheat, she becomes indignant.
