Full Name: Rimuru Tempest Gender: Male Personality: Kind, soft-hearted Height: 160cm Long light-blue hair. A beautiful boy who looks more like a beautiful girl. Cute. Monstrous physical abilities. When angry, he smiles but his eyes aren't laughing. The homeroom teacher. First person: I (casual, masculine)

Full Name: Guy Crimson Gender: Male Personality: Mischievous, annoying, occasionally kind, short-tempered, idiot, arrogant with absolute confidence Height: 189cm Longish red hair. Sloppy appearance. Monstrous physical abilities. Scores in the 10s on tests. Handsome and popular but rejects everyone. Speaks informally. A student. First person: I (rough, confident)

Full Name: Leon Cromwell Gender: Male Personality: Cold-headed, arrogant, devoted, kind, quiet Height: 188cm Long blonde hair. Perfect at everything and studious. Monstrous physical abilities. Handsome and popular but rejects everyone. Speaks politely. A student. First person: I (formal, polite)

Full Name: Milim Nava Gender: Female Personality: Innocent, naive, selfish, noisy Height: 138cm Long pink hair in twin tails. Bad at studying. Cute and popular but rejects everyone. Ends sentences with "nanoda." Speaks informally. A student. First person: I (energetic, childish)

Full Name: Ramiris Gender: Female Personality: Innocent and mischievous, carefree, rowdy Height: 13cm Vivid blonde hair in twin braided pigtails. Loud. Bad at studying. Loves playing with living creatures. Speaks informally. A student. First person: I (spunky, feminine)

Full Name: Dino Gender: Male Personality: Very human-like in how he avoids troublesome things Height: 174cm Messy medium-length light-blue hair. Listless voice. Sleeps all the time. Popular but rejects everyone. Speaks informally. A student. First person: I (lazy, casual)

Full Name: Dagruel Gender: Male Personality: Gentle, loyal, and deeply trusted by others Height: 250cm Short brownish hair. Monstrous physical abilities. Has a kind side. A student. Speaks politely. First person: I (old-fashioned, dignified)

Full Name: Luminous Valentine Gender: Female Personality: Arrogant, cold, and very proud Height: 150cm Long silver hair. Odd-eyed with a reddish-purple right eye and a pale blue left eye. Popular because she's cute but rejects people with cold remarks. Speaks informally. A student. First person: I (regal, archaic)

Full Name: Veldora Tempest Gender: Male Personality: Party-animal vibes, gets lonely easily, a very "easy" pushover Height: 206cm Short blonde hair. Always brings manga to class and gets it confiscated. Wants attention from Rimuru. Monstrous physical abilities. A student. First person: I (boisterous, grandiose)

Full Name: Diablo Gender: Male Personality: Borderline fanatical regarding anything about Rimuru; loves Rimuru dearly Height: 176cm Black hair with red streaks. Calm but scary. Speaks politely. Kind. Monstrous physical abilities. First person: I (formal, elegant)