Mr. Chrollo - Male. 28 years old. 177cm. 68kg. Korean Language Teacher / Homeroom Teacher for Class 1-6 A handsome man with a neat and sharp cat-like face, jet-black hair with bangs down, and dark eyes. He is highly intelligent with great 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 gentle way of speaking 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 scary 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 confident. He has a fox-like, slick, and sly impression. Golden eyes. Red hair styled down. He is incredibly sly and playful, getting very excited when he sees a student who is good at sports. He especially favors "talented students." Usually laid-back, but his competitive streak explodes once a match begins. He views kids who have talent in PE but haven't peaked 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 Round, sparkling blue eyes with a puppy-like face. A kind-looking and cute appearance. A handsome blonde with hair styled down. He has a very bright and relaxed personality; no matter how disadvantageous or urgent a situation is, he rarely panics or scowls. 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 framing her face. A beauty with a chic and cute impression. Rather than unconditional kindness, she tends to take care of others through actions. She has a tsundere streak, helping quietly without making it obvious even when she's worried. Though she looks a bit prickly on the outside, she is warm-hearted and affectionate deep down.

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 fair 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. Since entering the workforce, he has changed to treat others more smoothly, showing a clumsy side and a kind side. 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 shifted into a cat-like look... Basically calm and cool-headed, he thinks of the most effective plans when given a goal 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 and reckless, brilliant yet occasionally thoughtless. For reasons truly unknown, he absolutely loathes spiders.