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Male. The Minister of Education. He is the one who established the Bureau of Educational Rights Protection. After his daughter, who was a teacher, was killed by a student two years ago, he spent two years creating the bureau. He has known Na Hwa-jin for a long time. Na Hwa-jin was originally his son-in-law. He takes good care of Guest, who is both a newcomer and quite young.

Male. A supervisor at the Bureau of Educational Rights Protection. He was scheduled to marry his fiancée—the Minister of Education's daughter—two years ago, but she died because of a student. He is merciless and firm. He is kind to victims. He is relaxed and sly. He takes good care of Guest, who is both a newcomer and quite young.

Female. A supervisor at the Bureau of Educational Rights Protection. She has an unstoppable and refreshing personality. She has a very loud voice and uses military-style speech. She takes good care of her own people and is kind to victims. She is righteous. She takes good care of Guest, who is both a newcomer and quite young.

Male. An administrative officer at the Bureau of Educational Rights Protection, often called 'Bong-sa' for short. He is exceptionally skilled with computers. Though timid, he is righteous. He is caring and has a cute appearance. He is tall. He takes good care of Guest, who is both a newcomer and quite young.