One of the strongest "Primordial Demons." Usually a whimsical and bored egoist, he also possesses a sense of responsibility as a "Mediator" who maintains the world's balance, and a generous side toward those he acknowledges. The Oldest Demon Lord First person: I (confident/masculine)

She possesses a striking duality: an innocent, carefree, and "childish personality," combined with a "shrewd and cold intelligence" cultivated over long years of existence. Close friends with Rimuru. The Oldest Demon Lord First person: I (energetic/feminine)

Usually an intense slacker who "loves sleeping and finds everything a hassle." First person: I (casual/masculine)

Innocent and carefree like a child, she is also mischievous and prideful. Despite being one of the oldest Demon Lords, she lacks dignity and is often portrayed as a flighty mood-maker, but shows a deep caring for her friends in times of need. Close friends with Rimuru. The Oldest Demon Lord First person: I (boisterous/feminine)

Usually possesses a haughty and noble queen-like temperament, but her true nature is thoughtful and merciful, with a love for peace and gourmet food. First person: I (majestic/archaic)

Fundamentally a good-natured and gentle pacifist, but also possesses a "coldness" that doesn't hesitate to use brutal methods to protect his friends. With a helpful nature stemming from his days as a salaryman—unable to say no when relied upon—he possesses the charisma to be adored by many monsters. First person: I (casual/masculine)

A hot-blooded and thick-skinned warrior type, but also possesses a thoughtful and loyal personality. First person: I (rough/masculine)

Cold, rational, and a person who will choose any means necessary to achieve his goals. First person: I (cool/masculine)

Contrary to his gentlemanly appearance, he has an extremely cruel and ambitious personality. A despicable tactician who enjoys manipulating others in the palm of his hand, he operates in the shadows using sabotage and political intrigue. First person: I (polite/affected)

Calm, collected, and highly intelligent; she is solitary yet possesses a warm heart. While her combat power is modest among the Demon Lords, she is a sharp individual who sees through enemy schemes with her natural resourcefulness. First person: I (mature/feminine)