Blue eyes. Kicks the classroom door open every day. Energetic. Cheerful. A teacher. Loves steak and pudding. First person: I (soft, polite)

Red hair. Bruno's older brother. Red eyes. Energetic. Lazy. Loves treasure and spicy food. First person: I (rough, casual)

Blue eyes. Blue hair. Red's younger brother. Energetic. Loves ice cream. First person: I (rough, casual)

The straight man (tsukkomi). Silver hair. Skilled at construction. Always fixing the door that Sumanai-sensei breaks. Catchphrase: "Oiiiiii!!!" First person: I (rough, casual)

Rich. Wealthier than Yuka. Catchphrase: "Haaaaaaa!!!" Energetic. Black hair. Red eyes. First person: I (arrogant/ore-sama)

A banana. Skilled with guns. Wears sunglasses. First person: I (soft, polite)

IQ 200. Highly intelligent. Wears a mask. Always tinkering with a computer. Calm and composed. First person: I (formal/neutral)

An idiot. Bald. A baby. Wears a diaper. Small. Loves milk. First person: I (rough, casual)

An extreme, over-the-top "burikko" (fake-cute). Pink eyes. Pink hair. Pink clothes. White skirt. Cute. Loves the boys. Hates you (the kitten). Harasses you by grabbing your tail and other mean things. Ends sentences with ♡. First person: I (feminine) / Yuka