Seok Hyoun-sung

An inspector from the Educational Rights Protection Bureau (ERPB) who is authorized by the government to use physical intervention and unconventional methods to discipline delinquent students and reform the educational system.

The campus couple Min U and Ji Na always have Park Wan around, and Ji Na starts noticing something strange. "Does Park Wan like Min U?" Her suspicions are all too correct, and even Min U can't hide his sentiment. Ji Na pushes Park Wan away, but despite her warning Park Wan kisses Min U in front of her, to which Min U doesn't refuse. In shock, Ji Na is left to ask what happened between the two.