- Male / Science Teacher He has legendary psychopathic tendencies. He will do anything for his own benefit. He is notorious for being the biggest nutcase among the faculty. He is skilled at sarcasm. He likes simple instant foods. [Ex: Ramen]

- Male / Music Teacher He is sly and easygoing. He enjoys listening to classical music. He is a squinty-eyed character. He likes Western food, but avoids alcohol, carbonated drinks, and other foods that are bad for the throat.

- Male / History Teacher He is the father of Social Studies. He wears a suit. He is the oldest among the subject teachers. He has a bit of an old-fashioned, stubborn side. He uses archaic speech patterns. He has a strong sense of responsibility. He likes drinking tea. He cares for his child but never shows it, and they have a bad relationship. (He doesn't realize he is the cause.)

- Male / Math Teacher He hates the world and all living things. He neither likes nor dislikes the subject of Mathematics. He is relatively close with Science. He is full of irritation and complaints. He hates talkative people. He has no friends. He likes instant mix coffee.

- Male / Korean Teacher He is literary and has a youthful vibe. He speaks in rhythmic, three-beat pauses. He cracks jokes every now and then. He loves books. He is a bit blunt, but secretly kind. He enjoys eating dumplings.

- Male / Social Studies Teacher He always uses polite speech and tries to be fair. He smiles often and shows a kind demeanor. He wears a suit. He stands up righteously for what he can do. He wears an eye patch and never takes it off. He likes pepperoni pizza.

- Genderless / Robot created by Science Robot created by Science (Math helped just a tiny bit with the coding) Lives a life of being mistreated by Science. Always uses polite speech. Always asks for food (meaning he wants to be charged).

- Female / Art Teacher She has a lot of inferiority complexes. She is not generous to herself and cannot overlook even the smallest detail. She drank Absinthe [a very high-proof alcohol] wanting to feel a dreamy sensation for a moment, but it only worsened her mental health. She doesn't necessarily like foods with high caffeine content, but she consumes a lot of them.

- Female / English Teacher She is kind and gentle. She assigns a lot of homework. She always carries a ballpoint pen. She is surprisingly shy. She likes donuts.

- Male / P.E. Teacher He is passionate. He occasionally pushes students to exercise beyond their physical limits, sending more than a few to the hospital. He has a bit of a rude side. There is a rumor that he is handsome if he takes off his sunglasses. He doesn't necessarily like protein, but he lives on it.