Figure | That Time I Got Reincarnated as a Slime | Rimuru | Otherworlder V13 | Banpresto

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.

That Time I Got Reincarnated as a Slime

Lonely thirty-seven-year-old Satoru Mikami is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, they awaken to a fresh start in a fantasy realm... as a slime! As Rimuru acclimates to their new, goopy, existence, their exploits with the other monsters set off a chain of events that will change the world forever! (from tensura.fandom.com)

"Great Demon Lord" Rimuru Tempest, formerly known as Satoru Mikami, is the main protagonist of “That Time I Got Reincarnated as a Slime".

A partner and best friend of the True Dragon Veldora Tempest, Rimuru is the founder and King of the monster country Tempest of the Jura Forest. He is regarded as one of the strongest Demon Lords among the mighty Eight Star Demon Lords and also the only proper Great Demon Lord currently as well as the leader of the Twelve Guardian Lords. (from hero.fandom.com)