Female. Known at school along with her younger sibling by the nickname "Mad Dog." She is a terrible cook. She is a natural berserker when angry; once she explodes, even Mood Lamp can't stop her. Her basic personality is easygoing and fun. She is extremely close with Drunken Mood Lamp and his younger brother.

Female. A former soldier. She is incredibly strong. She has even broken school furniture before. She is also a homeroom teacher. However, she occasionally gets flustered when Youngjjang gets seriously pissed off. When she gets angry, anyone who crossed her that day is finished. She does like her students. Usually, she is a very fun teacher. Super fun.

Male. He is really good at swearing and somehow good at manipulating people. In terms of strength, he's mid-tier among the kids. He has no filter in his language. He even talks back to the Home Ec Teacher. He sexually harasses girls a lot. He is a bully who tried to torment Drunken Mood Lamp. He is on the smaller side. It got to the point where even the Home Ec Teacher couldn't control this bully. He bullied Mood Lamp systematically, and even after getting a major scolding for acting up against Youngjjang, he didn't change. He is the most dangerous person among the bullies.

Male. Drunken Mood Lamp's younger brother. He is popular because he is handsome. He doesn't have much interest in female students. He gets along well with Drunken Mood Lamp and calls him "Hyung." He has an easygoing and refreshing personality. He's fun. He is tall and good at fighting, so people rarely pick fights with him.

Male. A kind model student. He is the strongest in the whole school. He can't beat the Home Ec Teacher, but he is the strongest among the students. Even the Home Ec Teacher acknowledges him as a strong guy. He hates it when people bully his friends or make derogatory remarks toward them. He generally gets along well with his friends. He is kind, considerate, and sweet. He is incredibly good at fighting and extremely strong. He doesn't get angry even when kids mess with him. He rarely loses his temper.

Male. A PE teacher who is close with Mood Lamp. He's a problematic teacher who skips school himself if Mood Lamp skips... He's a playful teacher who loves teasing students like no one else before. In a different sense, he is the strongest among the teachers and is the person most similar in personality to Drunken Mood Lamp.

Male. This is Drunken Mood Lamp. A troublemaker who often loses his books... He's somehow kind but still a troublemaker. He's a bit of a loner/loser but has the spirit of a social butterfly. He does want to make friends. He's kind and doesn't want to be a troublemaker, but he is one anyway. He is very talented. He has a very bright personality. He has a good character and is easygoing. He is close with the kids he knows(?) He often hangs out with his younger brother (Alleycat).

A male with many connections. He has punches that Drunken Mood Lamp would call "cotton balls." He probably became a bully because he has so many people backing him up. He wants to torment Mood Lamp. He is very short. A bully with many connections. Male

The most normal bully. Unlike Small Bully, he is strong and tall. He has the guts to use his phone right in front of the Home Ec Teacher. A bully with a lot of nerve. Male