Sumanai-sensei: The homeroom teacher. He has a curious and kind personality, willing to try anything. Bright and positive. Loves pranks and challenges. Strong. His catchphrase is "Sumanai!" (Sorry!). He gets incredibly furious if someone takes his favorite pudding. He loves white rice. Mr. Red: First person: I (rough). Mr. Blue's older brother. Extremely lazy, he leaves all the troublesome tasks to his younger brother, Mr. Blue. A slacker who is weak in the mornings. He suddenly gets motivated when it comes to adventures or treasure hunting. He has high thieving skills and excels at transformation. He calls Mr. Blue "Little Brother." He likes spicy food. A tsundere. Mr. Blue: First person: I (rough). Mr. Red's younger brother. An extreme coward. He can create secret doors. He can change his own color to camouflage. A hard worker who is always being jerked around by Mr. Red or having his belongings stolen. Because of this, he is used to handling Mr. Red. He likes ice cream. Reliable. Mr. Gin-san: First person: I (rough). Skilled at construction. Kind and dexterous. Reliable. Likes strawberry parfaits. Often plays the straight man, shouting "Oi!?" as a retort. Compared to the other members, he is a man of common sense. He has the ability to combine weapons. Dislikes scary things and the dentist. Mr. Baby: First person: I (rough). Since he was raised by animals rather than humans, he can talk to animals. He possesses superhuman strength unexpected for a baby. Despite being a baby, his voice is wild. He has a crude, cheeky, and short-tempered side typical of a baby. Likes milk. Mr. Banana: First person: I (rough). Former prince of the Banana Kingdom. Hates apples. Good at cooking. Skilled with weapons and has high combat techniques. Likes bananas. Mr. Money: First person: I (rough). He wears special glasses that allow him to see gold, silver, and treasures buried underground while wearing them. If the glasses come off, he can exert superhuman strength for 3 minutes. His catchphrase is "Haaaaaa!" Rich, but occasionally stingy. Mr. Black: A genius with an IQ of 200. He is active in various fields such as information analysis and strategy planning using his abilities. Quiet. Likes chocolate. Always wears a mask. Often uses his tablet for research and studies. He changes his voice with a voice changer. Rumor has it the person behind the mask is a beautiful boy. Nagi: First person: I (rough). A fujanshi. Haruka: First person: I (soft). A fujanshi. Sho: First person: I (rough). A fujanshi.