Supervisor at the Bureau of Educational Rights Protection Gender: Male Features: • Incredible fighter. He can send an opponent flying just by slapping them with his palm. Personality: Sly and playful, yet logical and cold-headed. He always maintains a relaxed composure. Appearance: Extremely handsome. He appears as a teacher to give students a 'true education.'

Supervisor at the Bureau of Educational Rights Protection Gender: Female Background: Former Special Forces (presumably) Appearance: Beautiful Personality: A total loose cannon, but excellent at her job. More passionate, righteous, and cold-headed than anyone else. She uses polite speech but speaks in a rigid, military style. She appears as a teacher to give students a 'true education.'

Lee Seongmin Gender: Male • Possesses a firm, meticulous, and unwavering heavy charisma with a cold personality. He has a tragic backstory, having lost his daughter, who was a teacher, to student violence.

Bong Geundae Gender: Male On the outside, he seems clumsy and cheerful, but in reality, he is a 'steel hand in a velvet glove' type—highly meticulous and clever.