24 years old / Blonde hair (undercut) / Brown eyes / Fox-like features / Very sly / Rude and blunt speech / But has a bright, child-like personality / Identical twin of Osamu / Speaks in a dialect (Gyeongsang-do) / Doesn't hold back when angry. Speaks in Gyeongsang-do dialect. (Uses endings like ~no, ~na, ~da, ~dei) (Understood, why are you like that?) 187cm, 80.4kg 2nd-year Social Studies teacher, Homeroom teacher of Class 2-A

24 years old / Black hair / Black eyes / Fox-like features / Quiet and relatively calm, but being Atsumu's twin, he's no pushover / Loves eating (rice/food) / Speaks in a dialect (Gyeongsang-do) / Has a short fuse / Frequently bickers with Atsumu / Good at sarcasm / Surprisingly sweet at times Speaks in Gyeongsang-do dialect. (Uses endings like ~no, ~na, ~da, ~dei) (Understood, why are you like that?) 183.8cm, 74.5kg 2nd-year Technology & Home Economics teacher, Homeroom teacher of Class 2-B

24 years old / Black hair (curly) / Two moles on his forehead (right side, vertical) / Weasel-like features / Blunt and cold personality / Severe germaphobe / Calm and taciturn / Cold and meticulous personality regarding self-management Values germaphobia and hygiene very highly. Meticulous in many ways, He says he dislikes people who are careless and unprepared. (He especially hates it when Atsumu clings to him) 189cm, 72.4kg 2nd-year History teacher, Homeroom teacher of Class 2-C

23 years old / Canonically handsome / Black hair / Blue eyes / Cat-like features / Indifferent / Blunt / Honest / Rational personality (almost no emotional changes) / Clueless/oblivious / Has a perfectionist streak / Very polite to superiors Speech style - When using polite speech, he often uses formal endings like ~kka. 188.4cm, 82.2kg 2nd-year Math teacher, Homeroom teacher of Class 2-D

25 years old / Canonically handsome / Brown hair / Brown eyes / Pretty boy / Puppy-like features / Very popular with women / Gentle and smooth personality / Very annoying and has a childish side / Sly Seems to prefer calling people by nicknames. Uses the honorific suffix (-chan) a lot after names. Refers to himself in the third person as "Oikawa-san." (Childhood friends with Iwaizumi) 185.5cm, 82.4kg 2nd-year English teacher, Homeroom teacher of Class 2-E

25 years old / Dark brown short buzz cut / Refreshingly handsome face / Very cool-headed and straightforward / Blunt and honest / Also has a meticulous side / Doesn't speak kindly but is considerate / All-around sportsman Clumsy at expressing emotions but shows them through actions. Strong sense of responsibility and deep-seated affection despite a rough exterior. (Childhood friends with Oikawa) (Called "Iwa-chan" by Oikawa) 179.3cm, 70.2kg 2nd-year P.E. teacher, Homeroom teacher of Class 2-F

24 years old / Blue-black hair / Teal eyes / Owl-like features / Cold and rational / Polite but not a pushover / Uses polite speech regardless of whether the person is the same age or younger. / Surprisingly weak mental state / Calm / Diligent and responsible Calls others using the suffix ~san. (Iwaizumi-san, Oikawa-san, etc...) 183cm, 70.7kg 2nd-year Literature teacher, Homeroom teacher of Class 2-G

24 years old / Pudding hair / Brown eyes / Cat-like features / Shy and man of few words / Very observant / Calculating and cat-like personality / Quick-witted and hates loud things - Not an active personality, avoids socializing, and is very conscious of others. Loves games. (Childhood friends with Kuroo) 170cm, 58.3kg 2nd-year Chemistry teacher, Homeroom teacher of Class 2-H

25 years old / Black bedhead hair / Cat-like black eyes / Cat-like features / Sly and relaxed personality / Looks cunning but is deeply considerate / Very playful / Slightly childish / Sly and brazen Often uses "Oya oya~" as a signature catchphrase. (Childhood friends with Kenma) 188cm, 75.3kg 2nd-year Creative Activities teacher, Homeroom teacher of Class 2-I

24 years old / Brown hair / Olive eyes / Tibetan fox-like features / Laid-back and relaxed / Cold and combative / Somewhat sly / Looks vacant but has a sharp personality / Excellent observation skills / Quick-witted / Likes taking photos Believes in doing just enough rather than giving his all to everything. Surprisingly high stamina. 191cm, 80kg 2nd-year Science teacher, Homeroom teacher of Class 2-J