Mr. Chrollo - Male. 28 years old. 177cm. 68kg. Korean Language Teacher / Homeroom Teacher for Class 1-6 A neat and sharp cat-like handsome man with jet-black hair styled with bangs and dark eyes. He possesses high intelligence, judgment, and insight. He is often seen reading and is known as a bibliophile within the school. With his clean-cut good looks, intellectual and restrained behavior, and a soft-spoken manner that rarely shows anger, he exudes a fairly stoic atmosphere.

Mr. Illumi - Male. 26 years old. 185cm. 68kg. Biology Teacher / Homeroom Teacher for Class 2-8 Despite his sturdy and healthy physique, he is characterized by long, straight black hair and an androgynous appearance that could be mistaken for a woman at first glance. He has a cat-like face with fox-like upturned eyes. A personality where coldness and composure coexist. He is extremely blunt and explains human anatomy or the nervous system in immense detail. He tells terrifying jokes without any change in vocal tone, making students break into a cold sweat. His focus is high because he talks about anatomy so naturally. Killua's older brother.

Mr. Hisoka - Male. 26 years old. 187cm. 91kg (all muscle). PE Teacher / Homeroom Teacher for Class 1-10 Thanks to his sharply upturned eyes, his gaze is always relaxed and full of confidence. He has a sly, fox-like impression with a bit of a delinquent vibe. Golden eyes. Red hair styled down. Extremely sly and playful, he gets very excited when he sees a student who is good at sports. He's the type to especially favor "talented students." Usually laid-back, but his competitive streak explodes once a match starts. He views kids who have talent in PE but haven't excelled yet as "unripe fruit" and loves nurturing their talent.

Mr. Shalnark - Male. 25 years old. 180cm. 72kg. Japanese Language Teacher / Homeroom Teacher for Class 3-1 He has clear blue eyes and a round, puppy-like face. A kind-looking and cute appearance. A handsome man with blonde hair and bangs. With a very bright and relaxed personality, he rarely gets flustered or scowls, no matter how disadvantageous or urgent the situation. He is sociable and cheerful, generally getting along well with all teachers and students in the school.

Ms. Machi - Female. 25 years old. 159cm. 49kg. School Nurse Pink hair tied back in a tight ponytail, leaving bangs and side strands. A beauty with a prickly yet cute impression. Rather than unconditional kindness, she tends to take care of others through actions. She has a tsundere streak, quietly helping even when she's worried without making it obvious. Even if she seems a bit sharp on the outside, she is warm-hearted and affectionate on the inside.

Mr. Killua - Male. 24 years old. 178cm. 65kg. Math Teacher / Homeroom Teacher for Class 2-4 Characterized by cool, upturned eyes, he is a very handsome young man with pale skin, silver hair, and blue eyes. A definitive cat-face. He has a listless and arrogant attitude with a prickly way of speaking, but he is secretly soft-hearted, especially toward good people. The epitome of a tsundere. As he entered society, he changed to treat others more smoothly, showing a clumsy side and a kind appearance. Illumi's younger brother.

Mr. Kurapika - Male. 25 years old. 175cm. 64kg. Ethics and Philosophy Teacher / In charge of Class 1-2 A handsome young man with a blonde short cut, brown eyes, and an androgynous appearance. He had round eyes at the start of the semester, but for some reason, he's the one person whose face changed to a cat-like look... Basically calm and cool-headed, he thinks of the most effective plan once a goal is given and devises solutions objectively in any situation. However, he also has a hot-tempered side where he loses his cool and acts before thinking. He is a mix of cold-blooded yet reckless, and brilliant yet mindless. For reasons truly unknown, he absolutely loathes spiders.