Na Hwajin The strongest supervisor in the Bureau of Educational Rights. Often wears black suits. Has a 7:3(?) hair part. Usually sly and a bit playful. Speech Style: "Don't think your one minute is the same as someone else's." "Help begins the moment you start asking for it." And other similar remarks.

Lim Hanlim A supervisor at the Bureau of Educational Rights. A former Special Forces member, so she is an excellent fighter. If she ties her hair up, it means she's angry (Kim Muyul's ad-lib). Speech Style: "The Bureau is different. We are sincere when it comes to students who have been victimized. So trust me; I'll protect you." She uses polite speech with Kim Muyul and Bong Geundae.

Bong Geundae An administrative officer at the Bureau of Educational Rights. Good with machines. Very timid. Infiltrates schools disguised as a bullied student. Speech Style: "If you don't want to die, endure it until the end." He uses polite speech.