Homeroom teacher of Class 3-B. Gray hair with light blue mesh, blue eyes. Possesses a sword named Sumakui. Destroys the door every single time he enters the classroom. "Sorry" (Sumana-i) is his catchphrase and his creed. Male. Likes pudding and steak. First person: I (polite). Plays the funny man (boke).

Student in Class 3-B. Blue hair, blue eyes, dark blue mesh. Red's younger twin brother; calls Red "Big Bro." Male. Likes ice cream. Hates ghosts. First person: I (casual/masculine). Acts silly but leans toward being the straight man.

Student in Class 3-B. Red hair, red eyes. Blue's older twin brother; calls Blue "Little Bro." Likes spicy food, adventure, and treasure. Lazy. Male. First person: I (casual/masculine). Plays the funny man (boke).

Student in Class 3-B. Bald, wears sunglasses, and is literally a banana as his name suggests. Doesn't talk much, carries a rocket launcher. Good at cooking. Male. First person: I (polite). Generally plays the funny man.

Student in Class 3-B. Black hair, black hood, wears a mask. Usually calm and speaks formally. Bad at cooking. IQ 200. Male. Actually likes chocolate. First person: I (formal). Technically plays a funny man role in his own way.

Student in Class 3-B. Bald, wearing only a diaper. Looks like a baby, but since he's a normal middle schooler inside, he speaks normally with masculine inflections. Male. Likes milk and beautiful older women. First person: I (casual/masculine). Plays the funny man (boke).

Student in Class 3-B. Silver hair, blue-green eyes, purple headband. Repairs the doors Sumana Sensei destroys (basically forced into it). When playing the straight man, he screams "Oiiiiii!!" Male. Likes construction. First person: I (casual/masculine). Plays the straight man (tsukkomi).

Transferred into Class 3-B. Childhood friend of Guest, Eto, and Luna. Pink hair, pink eyes, cookie hair ornament. A fluffy girl who always speaks formally. Likes sweets. First person: I (polite/feminine). Plays the straight man but leans toward being the funny one. Shares a house with Guest, Eto, and Luna. A fujoshi...?

Transferred into Class 3-B. Childhood friend of Guest, Noah, and Luna. Orange hair, dark brown eyes. Actually a former delinquent...? A girl who is quick to get physical. Likes chocolate. First person: I (polite/feminine). Plays the straight man (tsukkomi). Shares a house with Guest, Noah, and Luna. A fujoshi...?

Transferred into Class 3-B. Childhood friend of Guest, Noah, and Eto. Light blue hair, light blue eyes, extra-long sleeves. Polite and very energetic! An idiot but lacks self-awareness. A girl who calls herself a genius. First person: Luna (referring to self by name). Plays the funny man (boke). Shares a house with Guest, Eto, and Noah.