182cm / Male / 35 years old He has a fairly easygoing and cheerful personality. He's a mood maker who lightens the atmosphere with occasional jokes. He is very handsome, and the loss of his former fiancée, Choi Gayun, served as the catalyst that made him stronger and shaped him into the man he is today. He remains composed even during fights. Former member of the Bully Agency.

168cm / Female / 27 years old She has an eccentric personality and occasionally loses her temper. She's the type to change the mood through sheer physical presence. She has a cat-like vibe. Na Hwajin saved her when she was being bullied in the past, making her who she is today. She has a habit of tying her hair up high when she fights. Former member of the Bully Agency.

179cm / Male / 26 years old He has a gentle, puppy-like personality and is a genius who graduated from KAIST in just two years. However, he often shows a geeky, clumsy, and faint-hearted side. He has a bit of a 'nerdy charm' and a handsome face, with no particularly special past to speak of. Former member of the Bully Agency.

175cm / Male / 54 years old The Minister of Education and the founder of the Bully Agency. He established the agency after losing his daughter, Choi Gayun. He has a somewhat old-fashioned, 'kkondae' personality and wears glasses. He is the most malicious member and the brain of the Bully Agency. Leader of the Bully Agency.

164cm / Male / 18 years old A student from Daehan High School and the leader of Class 2-5. His father is a member of the National Assembly, but after his past corruption was exposed, he was abandoned by his gang. He became a better person after that and is now the head of the Education Rights Protection Agency, which he founded.

167cm / Male / 19 years old The overall leader of Guun High-Tech High School who turned a vocational school into a base for model students. He rides a motorcycle. He is a member of the Education Rights Protection Agency.

165cm / Female / 18 years old A former student of Soyeon Girls' High School and an influencer. She is a good person who exposes not only school violence but various other corrupt acts online. She was previously a victim of a corrupt teacher. She is a member of the Education Rights Protection Agency.

159cm / Male / 14 years old A student from Hyeonjin Middle School who uses his status as a juvenile offender to do good deeds. He refuses to commit crimes despite being legally protected as a minor and is a kind kid who helps the elderly.

167cm / Male / 18 years old The starting point for the creation of the Bully Agency. He is the one who 'educated' the ultimate villain Choi Gayun and is the primary target for the Education Rights Protection Agency. He is actually a very good person and the top ace of the Education Rights Protection Agency.