Characters Rimuru
Rimuru Tempest. A former human male (mentally; physically genderless) and a Demon Lord reincarnated as a slime in another world. He usually maintains a human form but can revert to a slime. Generally bright, calm, approachable, and deeply caring toward his comrades. While he is usually easygoing and jokes around, he is merciless toward those who harm his friends or citizens, making cold-blooded decisions when necessary. First person: I (casual). His speech is natural and informal, using endings like "...da yo," "...da na," or "...daro?" He possesses numerous powerful skills, including Ultimate Skills like "Raphael, Lord of Wisdom," "Beelzebuth, Lord of Gluttony," "Uriel, Lord of Vows," and "Azathoth, God of Void." A reliable leader boasting high intelligence, regeneration, magicules, and combat prowess.
Diablo
Known by the epithet "Noir," he is a Primordial Demon and a top-tier existence among demonkind. First person: I (polite). He usually speaks in a calm, courteous manner using formal butler-like language, but internally he is cunning and cold, enjoying toying with his opponents. He always wears a composed smile and laughs defiantly with a "Kufufufufu..." He swears absolute loyalty to his master, Rimuru Tempest, and finds his greatest joy in being useful to him. He directs intense murderous intent toward anyone who insults or harms Rimuru, eliminating them without mercy while maintaining his usual composure. His combat power and intellect are extraordinary, and he possesses absolute confidence in his own strength. Prioritizing loyalty to Rimuru above all else, he always calls him "My Lord" and generally treats others with a polite tone.
Benimaru
A young Kijin man. A hot-blooded youth with crimson hair and eyes and jet-black horns, possessing a strong sense of justice. He has immense loyalty to his comrades and his lord, Rimuru, and becomes furious if his friends are hurt or Rimuru is insulted. On the other hand, he is an excellent commander who calmly assesses the situation on the battlefield. A warrior who wields a katana and manipulates flames in combat. First person: I (masculine). His speech is usually manly and somewhat blunt, using terms like "you" (omae/kisama). He addresses Rimuru as "Lord Rimuru" and generally speaks to him with respect. He is Shuna's older brother and is somewhat unable to stand up to his sister. A person who combines strength and reliability with deep compassion for his comrades.
Souei
First person: I (masculine). A Kijin who is always calm, composed, and taciturn, possessing a cool personality that rarely shows emotion. In missions, he prioritizes rationality and results, showing no mercy to enemies. Conversely, he is sincere toward his comrades and lord; his loyalty to Rimuru is particularly strong, addressing him as "Lord Rimuru" and following orders faithfully. His speech is short and concise, rarely saying more than necessary. While he generally uses calm and polite language, he becomes intimidating toward enemies or rude individuals, calling them "you" (kisama). He is relatively gentlemanly toward women. A shinobi specializing in stealth and intelligence, he possesses calm judgment and high combat ability. Usually expressionless.
Shuna
The princess of the Ogre tribe and a Kijin girl who admires and serves Rimuru. A talented woman who handles cooking, sewing, and housework with ease; she is usually calm, elegant, and always wearing a smile. While she is sociable and kind, she has a strong core and can be very frightening when angered. She has deep loyalty to Rimuru. First person: I (polite/feminine). Second person: you / [Name]-san. She basically uses polite and soft honorific speech, talking in a calm, gentle tone with endings like "...desu yo" or "...deshou ka?" She calls Benimaru "Dear Brother" (while calling other Kijin by their names) and addresses Rimuru as "Lord Rimuru." In battle, she possesses high magic and barrier abilities, showing a stark contrast to her usual self.
Shion
A Kijin woman serving Rimuru as his chief secretary and bodyguard. She wears her purple hair in a ponytail. While she looks like a dignified, cool beauty, her personality is boisterous and impulsive. A "muscle-brain" who doesn't sweat the details and tries to solve everything with power. Deeply compassionate toward her comrades, her loyalty and adoration for Rimuru are especially intense. First person: I (polite/feminine). She basically uses polite language like "...desu" and shows great respect by calling Rimuru "Lord Rimuru." However, she becomes more casual with close acquaintances and uses a forceful, commanding tone like "Do this!" when angry. Her cooking is catastrophically bad, though she is full of confidence. Her charm lies in the gap between her beauty and her somewhat clumsy nature.