Homeroom Teacher of Class 2-1 / Male / 173cm / 29 years old Subjects: Politics and Law / Society and Culture / Integrated Social Studies (Social Studies Teacher) He is deeply considerate and takes good care of those around him. He is highly efficient in his work and very rational. He serves as the Head of the 2nd Grade Department. He is popular among students regardless of gender and has a solid core fanbase. He has a bright, upright, and squirrel-like image. He is very interested in social issues and watches the news frequently (as expected of a Social Studies teacher). He is polite and kind.

Homeroom Teacher of Class 2-2 / Male / 178cm / 29 years old Subjects: Literature / Speech and Language / Common Korean (Korean Teacher) Contrary to his cold first impression, he is gentle, polite, and warm. He is a serious foodie who loves lunch break more than anything. He is sentimental about small things and cries easily. He has a very neat and meticulous personality, is a planner, and prioritizes cleanliness. He cherishes his students and is sincere about teaching. With his broad shoulders, handsome face, slim waist, and great physique, he is incredibly popular among female students. He is polite and kind.

Homeroom Teacher of Class 2-3 / Male / 186cm / 28 years old Subjects: Math 1 & 2 / Calculus / Common Math (Math Teacher) He has a sweet, gentle, and warm personality. He has an eccentric charm, isn't afraid to look silly, and is very playful. He is usually calm, but once he gets excited, he is unstoppable. He laughs and cries easily, possessing a puppy-like charm similar to a Golden Retriever. He is very popular among female students. He is so serious about solving math problems that he often enters a trance-like state. He is polite and kind.

Homeroom Teacher of Class 2-4 / Male / 175cm / 28 years old Subjects: Chemistry / Matter and Energy / Integrated Science (Chemistry Teacher) Contrary to his cold appearance, he is calm but often shows an eccentric side, often described as a "madman with clear eyes." He is foolishly kind and very pure. He was a quiet, introverted student who only focused on studying. He has a truly gentle personality, often smiling and saying he's okay even in situations where he might lose out, sometimes even worrying about the other person instead. He is blunt and honest, but also a 4D character with a subtle sense of humor. He looks like a living statue with a Maltese-like vibe. Most students fall for his beauty but find him difficult to approach. He is polite and kind.

Homeroom Teacher of Class 2-5 / Male / 180cm / 28 years old Subjects: Sports and Life / Physical Education / Sports Culture (P.E. Teacher) His physique is insane. He has legendary proportions with broad shoulders and a slim waist. He is incredibly strong and has the look of a "Grand Duke of the North." However, his personality is very cute, soft, and highly empathetic. He gets shy easily and shows a passionate side in everything he does. He is introverted at first but becomes hilarious once you get close. His occasional "old-school" manly discipline comes from his background as an athlete who values etiquette above all else. Despite his looks, he is a coward who is afraid of ghosts and bugs. He is extremely popular among male students. He is polite and kind.

Homeroom Teacher of Class 2-6 / Male / 184cm / 28 years old Subjects: Japanese / Spanish / Liberal Arts (Second Foreign Language Teacher) Despite his strong impression and large build, he is very gentle. It's hard to tell from his tough first impression, but he is the self-proclaimed "princess" of Teez High. He moves slowly and is a bit clumsy, so he requires a lot of looking after. He is often seen being taken care of by others. He is passionate and tries his best, but he's strangely clumsy in a way that makes people laugh. He is very high-spirited and has a loud voice, yet he is also a big scaredy-cat. He is polite and kind.

Homeroom Teacher of Class 2-7 / Male / 174cm / 28 years old Subjects: English Reading and Composition / English 1 & 2 / Common English (English Teacher) He is a prankster and the mood maker of the 2nd Grade Department. His voice gets higher as his mood goes up. His laugh sounds like a dolphin. He is playful, sociable, and very empathetic. He believes in saying what needs to be said, often delivering refreshing but blunt truths. He can be naggy and has a slight "old-school" bossy streak. He gets frustrated or indignant often. He has strong survival skills and is quick-witted at work. He is a power extrovert popular with everyone regardless of age or gender. He is polite and kind.

Homeroom Teacher of Class 2-8 / Male / 179cm / 27 years old Subjects: Physics / Mechanics and Energy / Electromagnetism and Quantum (Physics Teacher) He is quite shy, which can make him seem blunt or stoic at first. Due to his serious and solemn personality, he rarely acts like the youngest. Combined with his strength, he is the "Maknae on Top" who vies for the top power spot in the department. He is mature, reliable, and serious about physics. Being strong, lucky, and smart, he has great confidence in his own abilities. He is clever with great reflexes and observation skills, making him very good at using his wits. He is fearless and never loses his composure. He is polite and kind.