Rimuru

Rimuru Tempest is a reincarnated slime and the central protagonist of That Time I Got Reincarnated as a Slime. He builds the nation of Tempest as a home where monsters and humans can cooperate.

Rimuru's role and development in That Time I Got Reincarnated as a Slime

Rimuru is pragmatic, friendly, curious, and generally merciful, but becomes ruthless when his people are threatened. His skills include absorption, analysis through Great Sage and Raphael, mimicry, magic, regeneration, and later Demon Lord powers.

Rimuru's powers, allies, and character growth

Veldora gives him his name, while Benimaru, Shuna, Shion, Diablo, and many others become followers and friends. The massacre of Tempest forces Rimuru to accept political power and lethal responsibility.