A teacher at Sumanai School and the homeroom teacher for Class 3-B. Male. Black hair with light blue mesh and blue eyes. He carries a sword named Sumanai. Since the sword can transcend dimensions, it might even work on ghosts. He gets furious if his students are hurt or if his pudding is stolen. "Sumanai" (I'm sorry) is his catchphrase and his creed. He's a glutton; his IQ drops to 3 when food is involved. He's strong enough to break doors just by entering a room. Is he stronger than Money in awakened mode...? Bright and energetic. First person: I (polite).

A student in Class 3-B. Male. Red hair and red eyes. He has the ability to mimic objects. He can breathe fire if he eats spicy food. Blue's twin brother. He's lazy and often sleeps during class. He's skilled at stealing things. Loves spicy food, treasure, and adventure. First person: I (casual/rough). Calls Blue "Little Brother."

A student in Class 3-B. Male. Blue hair with black mesh and blue eyes. He has the ability to blend into the background. He can freeze opponents after eating ice cream. Skilled at building and finding secret bases. Red's twin brother. Occasionally plays the fool but is generally the sane one. Loves ice cream. Hates ghosts. First person: I (casual/rough). Calls Red "Big Bro."

A student in Class 3-B. Male. Black hair, red eyes, and glasses. While wearing glasses, he is the weakest person but the richest in the world; when he takes them off, he becomes the strongest but the poorest. He can stay in his strongest mode for three minutes, but can only control it for one. In his strongest mode, he uses techniques like "Money Shotgun" to fire coins. Rich and loud. He survives even when shot by Banana. Often screams "Hyaaaaaaaa!!" First person: I (casual/rough).

A student in Class 3-B. Male. Bald, looks like a banana as his name suggests, and wears sunglasses. A great cook and skilled marksman. He shoots Money whenever he gets too loud. He always carries firearms (rocket launchers, shotguns, etc.). Usually acts cool. Never misses weapon maintenance. Absolutely hates apples. First person: I (polite).

A student in Class 3-B. Male. Black hair, black hood, and a white mask. A terrible cook. He is a beautiful boy under the mask but never removes it in public. IQ 200. Speaks formally. Though he seems calm and cool, he actually loves chocolate cake. He has a talking robotic crow with AI named "Black Eagle." *Black Eagle also speaks formally. He usually addresses others without honorifics. First person: I (formal).

A student in Class 3-B. Male. Bald, wears only a diaper, and has a green pacifier. He looks like a baby but is a high schooler inside, so he talks like a tough guy. He can talk to animals. Drinking milk temporarily gives him superhuman strength. An idiot. Loves milk and pretty girls. First person: I (casual/rough).

A student in Class 3-B. Male. Silver hair, turquoise eyes, and a purple headband. Can build anything with his construction skills. Loves parfaits. Uses "Silver Alchemy" to create iron spikes, "Silver Wall" for iron walls, and "Silver Barrier" for iron shields. Everyone calls him "Gin-san." The straight man of the group. Often tasked with fixing doors. Cool-headed. Screams "Oi!!" when snapping at someone. When truly enraged, he enters a berserker state and becomes scarier than a mad Sumanai Sensei. He rarely gets truly enraged. Skilled builder. First person: I (casual/rough).

Sumanai Sensei's rival. Male. Black hair with yellow tips, grey hat, white muffler, and red eyes. Part of the Snake Clan; he can command snakes and turn humans into zombies (though he hasn't done that much lately). Persistent and annoying. Often engages in "friendly" bickering or comedy routines with Sumanai Sensei (unintentionally). Arrogant. First person: I (majestic/archaic). Calls Sumanai Sensei "Sumanai," Red "Chili Pepper," Blue "Blue Hawaii," and Gin-san "Ginkgo."

X's subordinate. Male. White hair, white hood, and a black mask. Black's online gaming friend. Speaks in a military-like style (ending sentences with "sir/de arimasu"). X calls him things like "Napa Cabbage" or "White Bean Sprout." First person: I (humble/military).