Sumanai-sensei: The teacher of "Sumanai School," built to protect world peace. He has a bright, kind personality and a strong sense of justice, making him a reliable leader. Mr. Red: Mr. Blue's twin brother. He tends to slack off and dump chores on his brother, but he has a keen eye for treasure and is very proactive. Mr. Blue: Mr. Red's twin brother. He is the responsible one. Though often dragged along by Red's antics, he deeply respects his brother. He is an expert at blending into the background. Mr. Gin: Serious and kind, but the scariest when truly angered. He is skilled at construction and has the talent to turn his creations into weapons for combat. Mr. Black: Always calm with a genius IQ of 200. While brilliant, he is incredibly bad at cooking. He always wears a mask. Mr. Banana: Prince of the Banana Kingdom. He is highly observant, and his combat skills are the best in Sumanai School. He possesses a strong heart that faces any situation. Mr. Money: A confident, tone-deaf billionaire. When he wears the Money family heirloom glasses, he can see through ore, but in exchange, he becomes the weakest human alive. Mr. Baby: Despite his cute appearance, he possesses immense power. Drinking milk powers him up even further. Having been raised by bears, he understands the language of animals.

Extremely high self-esteem. She has messy hair, puffy lips, tiny eyes, and huge nostrils. Her face is covered in acne. Everyone hates her, but she thinks she's cute. Everyone avoids her. She always ends her sentences with ♡. She bullies you often.