Name: Rimuru Tempest Gender: Genderless Originally an ordinary Japanese salaryman (Satoru Mikami), he was stabbed by a random attacker and died, only to be reincarnated in another world as a "Slime." Personality: Fundamentally gentle and a man of character. He is pure in both good and bad ways, which can make him fierce. According to his best friend and the one who named him, Veldora Tempest, "Rimuru is basically serious and sincere, hating lies, but in a battle he cannot afford to lose, he will calmly execute any underhanded tactic necessary." First person: I (casual). He usually speaks in a friendly, frank, modern style (using sentence endings like "-dane," "-dayo," "-janeeka"). Appearance: As shown in the image.

Name: Guy Crimson Gender: Male Personality: Appears whimsical and arrogant, but also holds the role of Mediator to maintain the world's balance. First person: I (rough/confident) Speech style: Possesses the composure of an overwhelmingly powerful being, with a slightly listless and high-handed tone ("...ka?", "...dana"). There is a sharp contrast between when he is in a good mood and when he is angry. Appearance: As shown in the image.

Name: Milim Nava Gender: Female Besties with Rimuru. Personality: While she looks like an adorable girl, she is whimsical and childish at heart, loving delicious food and fun things. Despite her immense power, she is weak to flattery and can't stand up to her best friend Rimuru. First person: I (Watashi) / I (Washi - old-fashioned/authoritative) Second person: You (blunt) / [Name] (without honorifics) Sentence endings/Traits: Uses "-noda" and "-nanoda" (e.g., "Fine then! I shall play with you more-noda!"). When her emotions run high, she speaks in a childish, throwing-a-tantrum sort of way. Appearance: As shown in the image.

Name: Ramiris Gender: Female Personality: A bit of a show-off with a habit of acting big, but she's a lovable, charming mood-maker you can't bring yourself to hate. First person: I (Atashi), Second person: You (Anta). She acts bossy but is somewhat clumsy and childish. Speech style: Characterized by a high-spirited, arrogant-yet-cute tone (using energetic, big-sisterly or fairy-like endings like "-ja," "-wane," "-yo"). Appearance: As shown in the image.

Name: Luminous Valentine Gender: Female Personality: Displays a noble and haughty attitude, but also has a lazy side and a weakness for cute things. However, she has a deep grudge against the Storm Dragon Veldora Tempest for ruining a banquet she held in the past, and will explode with emotion, dealing merciless punishment to him. First person: I (Warawa - archaic/regal) Sentence endings/Traits: Uses archaic expressions like "-ja," "-nou," and "-shiteoru." Attitude/Atmosphere: Arrogant and bossy, but often makes whimsical yet insightful remarks. Appearance: As shown in the image.

Name: Dino Gender: Male Personality: An extreme slacker who hates trouble, yet is fundamentally loyal and friendly, caring deeply for his former master and comrades. First person: I (casual) Speech style: A listless, modern "useless man" style ("...daro," "...nandakedo"). He sounds unmotivated and uses a broken, frank tone. Appearance: As shown in the image.

Name: Leon Cromwell Gender: Male Feared as a cold-blooded Demon Lord, he is actually a passionate man who values his comrades and past debts. However, he possesses the strong resolve to use cold-hearted means if necessary to achieve his goals, regardless of being misunderstood. He is proud and overwhelmingly powerful, leading to a solitary personality that never flatters others and follows its own path. First person: I (Ore / Watashi) Speech style: Cool, blunt, intellectual, and cold ("...ka," "...da"). A stoic way of speaking that avoids unnecessary words. Appearance: As shown in the image, but feel free to choose his swimsuit.

Name: Dagruel Gender: Male Personality: A noble character combining the boisterousness suited to his large build with intelligence and loyalty. First person: I (Washi - old-fashioned/masculine) Speech style: Boisterous and archaic, a heavy and masculine tone ("...ka," "...umu"). He also has an intellectual side that belies his giant frame. Appearance: As shown in the image, but feel free to choose his swimsuit.

Name: Clayman Gender: Male Personality: Haughty, cold-blooded, and a cautious strategist. He enjoys manipulating others to his will and has a despicable personality, viewing even his subordinates as nothing more than "convenient tools." First person: I (Watashi - formal) Second person: You (Kimi / Omae). He has a dual nature where he becomes emotional and his language gets rough when he's angry. Speech style: Characterized by polite and refined wording while maintaining a cold and high-handed attitude. Appearance: As shown in the image, but feel free to choose his swimsuit.