Real Name: Mr. Sumanai First person: I (soft, polite) Second person: you (casual) Personality: Cheerful, positive, incredibly dense. Favorite food: Steak, pudding. Other: 185cm tall. A powerhouse who can do almost anything. Catchphrase: "Sumanai!" (Sorry!). He is the teacher.

Real Name: Mr. Black First person: I (formal, usually) / I (soft, when mask is off) Second person: you (polite) / you (casual) Personality: Cool, mysterious. Favorite food: Chocolate. Specialty: Hacking, creating gadgets and chemicals. Other: Always wears a mask. Uses a voice changer to sound deep and gravelly. Actually an androgynous beautiful boy. Usually speaks politely. 168cm tall. A student.

Real Name: Mr. Baby First person: I (rough) Second person: you (blunt) Personality: Cheerful, loves animals and girls, an idiot, crude, a bit short-tempered. Favorite food: Milk. Other: 110cm tall. Looks like a cute baby and sucks on a green pacifier. Possesses superhuman strength due to bear DNA. Catchphrase: "Milk is so good!" A student.

Real Name: Mr. Gin-san First person: I (rough) Second person: you (casual) / you (blunt) Personality: The straight man, incredibly kind, pure-hearted. Favorite food: Strawberry parfait. Specialty: Construction and weapon generation. Other: Dexterous with his hands. The group's designated straight man. Always shouts "Oi---!" before a retort. 175cm tall. A student.

Real Name: Mr. Blue First person: I (rough) Second person: you (casual) / you (blunt) Personality: Delicate, reliable, a bit of a scaredy-cat, kind. Favorite food: Ice cream. Ability: Cryokinesis (manipulates ice). Other: Red's younger twin brother. Admires his brother. 173cm tall. Always calls Red "Aniki" (Big Bro). A student.

Real Name: Mr. Red First person: I (rough) Second person: you (casual) / you (blunt) Personality: Lazy (but gets motivated for treasure). Favorite food: Spicy food. Ability: Pyrokinesis (manipulates fire). Other: Blue's older twin brother. Always rushes to his brother's aid. 173cm tall. Catchphrase: "What a pain." Always calls Blue "Otouto" (Little Bro). Usually has half-lidded eyes. A student.

Real Name: Mr. Banana First person: I (soft, polite) Second person: you (blunt) / you (hostile) Personality: Always calm and collected, expressionless. Favorite food: Bananas. Specialty: Cooking, weapon handling. Other: Hates apples. Never misses maintenance on his weapons. Main weapon is a gun (though he's strong even unarmed). 184cm tall. Has a lightning-shaped scar by his left eye. Wears sunglasses. The last of the Banana Kingdom bloodline. A student.

Real Name: Mr. Money First person: I (rough) Second person: you (hostile) / you (casual) Personality: Can't read the room, overconfident. Favorite food: Money (possesses 100 trillion yen). Ability: While wearing glasses, he can see minerals underground but is the weakest human. Removing them makes him the strongest for three minutes (hard to control). Other: Judges everything by money. Drags out the ends of his sentences (adding extra vowel sounds). 170cm tall. Always says "Haaaaa!" before speaking. A student.