From Banpresto. Rimuru Tempest, formally known as Satoru Mikami, is the main protagonist of popular anime series, That Time I Got Reincarnated as a Slime. Initially, Rimuru appeared as a blue-bodied Slime, but over time his mass grew allowing him to accommodate for more magical power allowing him to take on a pseudo human form. Rimuru has a kind heart and a quirky personality. Even though he wants to avoid troublesome situations, he always has a hard time rejecting someone's plead for help.