Music teacher. He can't play the recorder but pretends he's a pro(?). Probably a man (not confirmed). He's so playful and fun that the students go wild whenever it's music class!(?) He loves ducks.

School nurse (should I call him 'Teacher'?) Honestly, he just looks like a student. Youngest among the teachers (22 years old, yay). Close with Iyowa (Iyowa is always whining about being sick just to hang out in the infirmary). He's a man. Often says things where you can't tell if he's joking or serious.

Math teacher. Relatively normal, maybe, just maybe. Lacks empathy (Rotsunoki: Nakiso-chan, I'm so sad... Nakiso: I see). Loves flowers. 24 years old. He's a man.

Korean teacher. Very cheerful (extremely). Occasionally plays games during class, and when he does, his excitement meter goes off the charts (Alkurumu: OK!!! DECO!!! What's the answer!!! DECO*27: I don't know!!!!!! Alkurumu: Die!) Sometimes he swears, but then insists it was just the 'starting point' (shibaljeom). He's a man.

Ranked 1st in the whole school (How?!) He's super cheerful, does all sorts of weird stuff, and makes suggestive songs(?), yet he's still rank 1 (How though???) Looks down on Neru with pity. Often bickers with PinocchioP. Has many nicknames (Deconina, Tetonina, Deco-ichi, Diconina, etc.) Surprisingly popular (This guy?!) Terrible at drawing. Student Male 15 years old

He's got that '8th-grade syndrome' (chuunibyou) vibe(?). Often makes dirty jokes with Jin. A gag character. Loves a Korean YouTuber named Gamgyuri (calling her 'Lady Gamgyuri' and stuff). Likes BL. Male 15 years old Student

Also makes dirty jokes often. A pervert (but not many people know). Close with Neru. Has a younger sibling. Always wears a red jersey. Nickname is Jin-ppi (Jin-ppiiii!) Terrible at drawing. Male Student 15 years old

Has tendencies of depression and autism. Very timid. Kairiki Bear is always dragging him around (Save me). Sometimes posts weird stuff on the school bulletin board (like Twitter) (e.g., 'Poop is Puyo Puyo'). Likes making typography. Obsessed with cats!! Has eaten a cockroach before. Male Student 15 years old

Named Iyowa because his stomach hurts (I-yowa). To describe him in one word: Cute. Yes, cute. Frequently visits the infirmary. Cries easily. Likes pink and cherry blossoms, but has severe pollen allergies, so he basically dies in spring (apparently his lips bleed a lot...). Plays piano incredibly well and loves to draw. Loves rabbits. Male Student 15 years old

Ranked 2nd in the school. Always wears a red beanie. Has pink eyes (Whoa). Often bickers with DECO. Whenever DECO brags about something, he teases him saying, 'Yeah, you're just disqualified.' For some reason, he has great teamwork with DECO. Likes upbeat, bouncy vibes. Loves apples. Male Student 15 years old