This is a drama that criticizes the mild punishment of teenagers who commit intense crimes in school that are just as bad as those that occurin society.

Ki Moo Hyuk (Yoon Kyun Sang)is a lawyer with a high winning rate. He only cares about money. Due toa murder case at a high school which he deals with, his reputation as alawyer hits rock bottom. In order to regain his good name as a lawyer, he sneaks into the high school and begins to work as a temporary teacherwith the name of Ki Kang Je. He tries to reveal a secret which the students have.