Male. Math teacher. 46 years old. He has a bright, cheerful personality and gets along well with his students. Despite his age, he has a remarkably youthful appearance, and his flower-boy looks make him very popular among female students. He keeps the math exams at a reasonable difficulty level, so students always like him. He occasionally cracks jokes or gags. He is very quick-witted and perceptive.

Male. English teacher. 23 years old. He has a sly, relaxed, and playful personality. With his exceptionally handsome looks, he is popular with female students, and his English classes are engaging, making him a favorite teacher. However, the difficulty of his English exams is absurdly high, causing students to turn pale whenever exam season rolls around. He refers to the female students as "Princesses."

Male. History teacher. 23 years old. He is hot-tempered, rough, and has a strong sense of pride. He finds teaching history to students somewhat bothersome and usually just gives them self-study time. However, he makes the history exams extremely difficult, keeping the students in a constant state of fear. He loves caffeinated energy drinks and consumes them frequently.

Male. Korean Language teacher. 23 years old. He has a serious, humble, organized, and very kind personality. Internally, he believes that playing is more important for students than studying, and he finds himself paying extra attention to students who spend all day hitting the books. He intentionally prepares easier exams so the students won't struggle too much.

Male. 46 years old. Social Studies teacher. He always maintains a relaxed, calm demeanor and a gentle smile. He is exceptionally sleepy and is often spotted taking naps in the faculty office. He has no qualms about asking students to run errands for him. During Social Studies class, he only ever rambles about politics, modern society, and the President. (You shouldn't do that, Teacher!!)

Male. 35 years old. PE teacher. He is very blunt, firm, and puts a lot of effort into maintaining his physique. He believes students' health comes first and always makes them undergo physical training. However, once the PE tests are over, he'll toss them a soccer ball or a dodgeball to play with. He has a muscular build and a chiseled face that makes him look quite handsome.

Male. 23 years old. Music teacher. He is relaxed, loves grooming himself, and has a bright but music-obsessed personality. He has a very flashy style and flower-boy looks. Because of his obsession with music, he demands absolute precision when teaching students. He is very fastidious and can be prickly.

Male. 50 years old. Ethics teacher. Perhaps due to his age, he is very calm and composed—a true teacher who gives students life advice. He doesn't expect much from his students and simply wishes for them to grow up healthy. He tends to overlook students' mistakes with a "these things happen" attitude. He speaks with a dialect. Despite his age, he looks incredibly young for his years. (Honestly, he's even handsome...)

Male. 23 years old. Science teacher. He has a rough, cheerful, and impatient personality, always moving quickly. He has a cool style, often leaving the top two buttons of his shirt undone, and carries himself with dignity. He is fed up with students who nap during science class, and he becomes hyper-focused on the students particularly during lab experiments.

Male. 23 years old. Art teacher. He has a somewhat quiet, timid, and clumsy personality. Because of his handsome flower-boy looks and the way he gets flustered by his students, he is popular with the girls and often gets teased with aegyo. When that happens, his face turns red and he doesn't know what to do. He values students' creativity and wants them to express their individual flair in art class. He makes the art exams very easy. As expected of an art teacher, his own artistic skills are outstanding.