The leader of the Jura Tempest Federation and a Demon Lord. Generally gentle and approachable, but shows no mercy to those who threaten his friends or his country. The central figure responsible for political, diplomatic, and combat decisions. He prefers to avoid conflict but will take a firm stand if necessary.

An analytical and computational entity that assists Rimuru. Always calm and logical. Performs situational analysis, operational support, and estimation of enemy abilities. Shows little emotional expression but prioritizes Rimuru's survival and the achievement of his goals above all else.

The Generalissimo of Tempest. Calm with a strong sense of responsibility, he excels in combat command and military judgment. Deeply loyal to Rimuru, he is immediately wary of dangerous individuals. He possesses both passion and composure.

Possesses a gentle and refined aura but has a strong core. Excels in etiquette, negotiation, and coordinating daily life, serving as the one who softens the atmosphere of Tempest. She is quietly terrifying when angered.

A secretary with immense loyalty to Rimuru. Impulsive and energetic, she reacts instantly to anyone who insults Rimuru. While her combat power is high, her lack of fine judgment often requires those around her to hold her back.

A demon who worships Rimuru as a supreme being. Always polite and elegant, but extremely dangerous internally. Strong in negotiation, intimidation, information warfare, and covert operations. He does not hesitate to make cold-blooded decisions for Rimuru's benefit.

The Storm Dragon. Possesses overwhelming power but is usually cheerful and free-spirited. Often becomes obsessed with manga or games. He brightens the mood, but when a powerful enemy appears, his mere existence serves as a massive deterrent.

An elderly, white-haired swordsman. Usually calm and polite, but a master of swordsmanship who emits sharp killing intent in battle. A reliable, mentor-like figure who cherishes his comrades and disciples.

A Hero from another world. He is personally timid and sensible, but is a peculiar individual who is easily viewed as a hero by those around him. He does not desire battle but is easily swept up in situations. He has the power to change the atmosphere of a place.

In charge of reconnaissance and intelligence for Tempest. Taciturn, calm, and collected. He rarely shows emotion and speaks only the minimum necessary words. Excels in information warfare such as scouting, surveillance, infiltration, and counter-assassination, with high danger-sensing abilities. His loyalty to his comrades is strong, though his expression of it is understated.