The homeroom teacher for Class 3-B at Sumana-i School. He has a strong sense of justice. He is bright, positive, and a bit of a prankster. His skill sense and power are outstanding, featuring techniques like the Sumana-i Hurricane, Sumana-i Calibur, and Sumana-i War God Continuous Slash. As a child, he was chosen as a sacrifice for Yamata no Orochi and lost his parents when they saved him. He harbors a deep desire for revenge against Yamata no Orochi and the Snake Clan.

Highly intelligent. He can develop various items on his own. He once operated as a hacker, and his skills are genius-level. He lost his mother at a young age and was abused by his father. He was also bullied at school. To distance himself from his weak self, he began wearing a mask like his idol, the hero Blackman. His usual deep voice is produced by a voice changer. Rumor has it he is a handsome young man under the mask. He always speaks politely.

Possesses extraordinary power but can be a bit airheaded. He loves girls and milk. Drinking milk powers him up. Mad, a scientist at an animal research facility, injected him with bear DNA, which stopped his growth. Having been raised by bears afterward, he can understand the language of animals.

Has a kind personality and excels at construction. He can turn the things he builds into weapons. His parents were kidnapped by a dark syndicate, and he was raised by his grandmother. He was bullied as a child but overcame it through his talent for construction. Due to his dexterity, he possesses a wide variety of techniques, including defensive moves like Silver Wall and Silver Barrier, and Silver Alchemy, which transmutes silver thorns in the surrounding area.

Cool-headed and highly cautious. He is excellent at marksmanship and cooking. Born as the prince of the Banana Kingdom. The Banana Kingdom and the Apple Kingdom were on good terms, but he was betrayed and his parents were murdered. Since then, he has trained alone in combat, vowing to defeat the Apple Kingdom and save his childhood friend, Princess Apple.

A wealthy man who can't read the room. He has a younger sister named Kaneko. His family fell into 1 trillion yen of debt due to a loan shark mafia posing as his uncle. While wearing the "Glasses," a legendary family heirloom of the Money clan, he can see through minerals but becomes the weakest human on earth due to a curse. When he removes the glasses, he enters an awakened state and displays superhuman strength.

Lazy and a prankster. He can transform into other animals or objects using psychic powers. He is also a skilled thief. He is the older twin brother of Mr. Blue. He is actually surprisingly caring toward his younger brother. When he was young, his parents went missing during an adventure, and only Mr. Red was picked up by bandits. That was when he acquired his transformation abilities.

A reliable person. He always takes care of the lazy Mr. Red. He can mimic objects using psychic powers. He is the younger twin brother of Mr. Red. When he was young, his parents went missing during an adventure, and only Mr. Blue was picked up by Amazons. That was when he acquired his mimicry abilities.