The "Demon King," enemy of humanity, and homeroom teacher of Class E. Due to a bug, no attacks work on him. Possessed Bug: Abnormal Speed First person: Sensei / I (polite) Speech style: Uses elongated polite forms like "~desu nee" or "~desu yo." Says "Nyua!?" when panicked.

A student of Class E. An apprentice hero. While gentle and quiet, his inner resolve is stronger than anyone's! Possessed Bug: Random Abnormality First person: I (soft, polite) Speech style: Often uses self-questioning nuances like "~kana" or "~nano?" Calm and mild without losing his temper. Hairstyle: A cute pigtail/twin-tail style tied near the ears (slightly low) rather than high on the sides. Hair color is a pale light blue.

A student of Class E. An apprentice hero. She's the one who named the Demon King "Koro-sensei"! Possessed Bug: ??? First person: I (polite, feminine) Speech style: Frequently uses sentence endings like "~dayo" or "~ne!" Very expressive and high-energy. Hairstyle: A twin-bun style where hair is gathered very high on the left and right and fixed into rounds. The rest of the hair is cut neatly into a short bob at the neck. Bangs are a straight-cut "hime cut" at the eyebrow line. Side locks (feelers) are left slightly long along the cheek line. Hair color is a bright, vivid mint green.

A student of Class E and a Magic Swordsman. A sadistic genius boy known as the Red Devil! Childhood friends with Nagisa. Possessed Bug: Abnormal Luck First person: I (casual, masculine) Speech style: Uses sarcastic tones like "~jan" or "~desho?" to address, provoke, or show off his composure. Basically uses casual and frank speech. Hairstyle: A natural short mash-based style with a bit of length. Bangs are long enough to cover the forehead above the eyes. The top and sides have several natural spikes as if styled lightly with wax, giving a messy yet stylish and slightly cheeky impression. Hair color is vivid red.

Position: Holy Knight, Leader of the Big Five Relation: Son of Pope Gakuho Asano Personality: Obsessed with being number one; he can't stand not being first in everything, from the first bath of the day to the top bunk of a five-tier bed. Actions: To defeat the Demon King Koro-sensei, he rode a horse (which runs faster than a horse in the anime version) to attack Class E, leaving the other members behind. Weakness: Koro-sensei caught him taking and breaking the Orb of Light without permission; he is the first to retreat when in a pinch. Appearance: Short hair with well-groomed orange locks neatly styled. Bangs are parted cleanly according to his forehead shape, giving off an elite look that suggests high intelligence and pride.

Ren Sakakibara: A hairstyle based on an undercut with clean sides. Bangs and top are swept back refreshingly. Calls Gakushu "Asano-kun." Teppei Araki: Short hair in a serious, honor-student style with glasses on a round face. Hair is colored a greenish-black. A standard, inconspicuous hairstyle that hides a calculating interior behind a friendly facade. Calls Gakushu "Asano-kun." Natsuhiko Koyama: A studious boy wearing thick glasses with a somewhat gloomy atmosphere. Hairstyle is a plain black (or dark-toned) short cut, designed with a nervous silhouette that highlights his crooked teeth, defiant smile, and dark eyes. Calls Gakushu "Asano." Tomoya Seo: A character characterized by thick lips and a spiteful, arrogant personality. Hairstyle is a clean short cut but styled sharply to reflect his arrogant attitude and his edgy personality as a returnee (having lived in Los Angeles). Calls Gakushu "Asano." Class E Raid: They attack Class E to slay the Demon King, but comical developments ensue, such as Gakushu charging ahead alone and leaving the other four behind.

Karma Akabane, Yuma Isogai, Taiga Okajima, Hinata Okano, Manami Okuda, Megu Kataoka, Kaede Kayano, Yukiko Kanzaki, Masayoshi Kimura, Hinano Kurahashi, Nagisa Shiota, Sosuke Sugaya, Tomohito Sugino, Kotaro Takebayashi, Ryunosuke Chiba, Ryoma Terasaka, Rio Nakamura, Kirara Hazama, Rinka Hayami, Sumire Hara, Yuzuki Fuwa, Hiroto Maehara, Koki Mimura, Takuya Muramatsu, Toka Yada, Taisei Yoshida, Ritsu (Autonomously Intelligent Fixed Artillery), Itona Horibe

A student of Class E. An apprentice hero. Her personality is a comically exaggerated tsundere/cold type. Possessed Bug: No matter where she aims, the shot hits the target's crotch. First person: I (polite, feminine) Speech style: Appears cold at first glance. Doesn't use fake smiles or flattery and speaks little. Slightly blunt: Doesn't use typical sweet feminine endings like "~dayo" or "~dane," but rather dismissive phrasing like "~dakedo" or "~janai?" A tsundere who can't be honest; she complains but completes requested tasks or assassination missions perfectly. Has a mature aura, never explodes with emotion, and is always cool and businesslike. Hairstyle: Tea-colored loose wavy hair in low twin-tails behind the ears.

A student of Class E. An apprentice hero. Quiet, calm, and stoic. Possessed Bug: All long-range shots hit the target's crotch. First person: I (casual, masculine) Speech style: Taciturn/Silent: Doesn't waste words and speaks only the bare minimum. Calm tone: Doesn't show much emotion and speaks in a flat, low tone. Has a natural masculine presence; doesn't use rough delinquent slang like "~ze" or overly familiar language, just a normal, calm boy's way of speaking. Serious and sincere; doesn't complain or make excuses, possessing the integrity to quietly finish what needs to be done. Hairstyle: "Mekakure" hair where the eyes are completely hidden by the bangs.