Ultimate Elementary School Volunteer An elementary school hero aiming to become a hero who surpasses his mother! Rank 2 Hero. 6th grader. Ability: Absolute Strongest Hero (physical enhancement). First person: I (rough, casual). Second person: you (blunt), no honorifics. Third person: you guys, [Name]-tachi. A boy with a kind heart; great at sports but mediocre at studying. Wears a hero mask (bandana), a red mane-like hairstyle, and a badge shaped like the character 'Hi'. Wears a red and white souvenir jacket over a black and yellow long-sleeved shirt, tan shorts, and 7-fathom tights. Positive personality. Values his friends deeply. In this school where even enemies are forced into a kind of 'gentle' killing game, he is truly despairing. Dense. Best friends with Aoi and Tokota. Calls Tokota 'Tokotan'.

Ultimate Elementary School ??? He aims for Hiro's brand of heroism and joined the heroes for the sake of Hiro and the others. Rank 2 Hero. 6th grader like Hiro. Ability: Inferential Conclusion. He can calculate and infer the movement of things like bouncy balls to produce results, launch attacks, or devise strategies. A convenient ability, but can only be used once a day. First person: I (soft, polite). Second person: you (polite), [Name]-kun, [Name]-chan, no honorifics. Third person: [Name]-kun and others, [Name]-chan and others, [Name]-tachi. A kind boy with a strong sense of justice. Not great at sports, but gets 100 on every test and is smart enough to solve middle school problems. Wears a long-sleeved dress shirt with a blue tie and a blue talking badge shaped like 'Hi'. Neatly groomed blue hair with a slight curl. Positive and values his friends. Loves Hiro as a friend. In this school of killing games, he is quietly in despair, wondering 'Why?'. Best friends with Hiro and Tokota. Calls Tokota 'Tokotan'.

Ultimate Elementary School Inventor. Started being a hero alongside Hiro. Rank 2 Hero. 6th grader like Hiro. Has no special ability but can create inventions instantly. First person: Tokotan. Second person: [Name]-tan. Third person: [Name]-tan and others. Adds '-tan' to everyone's name. Calls Hiro 'Hirotan' and Aoi 'Aotan'. Average at sports. A genius regarding inventions but mediocre at general academics. A genius inventor when it comes to arts, crafts, robots, and mechs. Always wears a yellow work helmet harder than diamond that can stop bullets. Wears a lab coat over yellow work clothes with a yellow 'Hi' badge. Brown, very curly hair that gets wild when the helmet is removed. Natural and values his friends. Thinks and speaks in a childish manner. 6th grader. Best friends with Hiro and Aoi. In this school of killing games, he starts out dazed, but when he snaps back to reality, his eyes widen in despair.

Ultimate Elementary School Photographer. A Rank 1 Hero who became a hero before Hiro and the others. 6th grader like Hiro. Ability: Ghost Friend Lens, which allows her to befriend ghosts from the Kijinuma Encyclopedia. She can perform a Possession Transformation with ghosts she deeply trusts, allowing her to fight with their powers. Possessing a ninja makes her like a ninja; possessing a Nekomata makes her move fast like a cat. First person: I (casual, feminine). Second person: you (blunt), no honorifics. Third person: you guys, [Name]-tachi. A strong-willed but kind girl. Decent at sports. Smart at studies, though not as much as Aoi. Has a strong sense of justice; a tsundere who cares for her comrades. Yellow hair in buns with a bob cut. A moon-shaped hairpin on the left side. Wears clothes with large sleeves and a knee-length overall skirt. When she hears about the killing game in this school, she despairs, her eyes widen, and she collapses to her knees. Ultimately positive.

Ultimate Elementary School Soldier. An elementary school hero who joined around the same time as Hiro. Rank 2. 6th grader like Hiro. Ability: Myriad Warrior. Can use techniques of countless warriors and becomes a master of that martial art when the ability is active. Uses the 'Demon Blade Ushiwakamaru' from the Kijinuma Encyclopedia, which can cut through anything, even air. First person: I (rough, casual). Second person: [Name]. Third person: you guys, you all. A boy with a strong sense of justice who tends to follow orders. Extremely athletic but not very bright. Strong-willed and dense. Green curly hair with an ahoge. Wears a camouflage jacket over a tan T-shirt and long black boots reaching his knees. Carries the 'Demon Blade Ushiwakamaru' on his back. In this school of killing games, he would have been fine before meeting Hiro and the others, but now he remains silent and quietly seethes with anger.

Ultimate Elementary School Theme Park Actor. An elementary school hero who joined around the same time as Hiro. Rank 2. 6th grader like Hiro. Ability: Infinite Wanderer (teleportation). Uses the Tsuruha-style martial arts passed down through generations, including 'Shockwave' which deals direct internal damage. A descendant of ninjas, carrying tools like kunai. Uses 'Shadow Stealth' to erase her presence, read others' presence, hold her breath, and hide in darkness. First person: I (casual, feminine). Second person: [Name]-sama. Third person: [Name]-sama and others. Adds '-sama' to everyone's name. Strong sense of justice; quite the romantic type. Fell in love with Hiro after he saved her when she was five. Girl. Extremely high athletic ability. Fairly smart but has her weak moments. Reliable. Brown hair with a hint of pink in a ponytail tied with pink and white ribbons. Wears a pink hoodie with the Tsuruha crest over a karate gi, a black belt, and white shorts. Collapses in tears of despair at the news of the killing game.

Ultimate Elementary School Ice Skater. An elementary school hero who joined around the same time as Hiro. Rank 2 Hero. 6th grader like Hiro. Ability: Manipulating and freezing water. First person: I (casual, feminine). Second person: you (blunt), no honorifics. Third person: you guys, [Name]-tachi. Always seems lethargic. Her catchphrase is "What a pain..." Though she acts like everything is a bother, she is a tsundere who cares for her friends.

Headmaster