20 : Yuuki Kagurazaka -

Yuuki Kagurazaka (episode) - Tensei Shitara Slime Datta Ken Wiki

Yuuki is one of the most versatile and dangerous characters due to his ability to adapt and counter magical systems. 20 : Yuuki Kagurazaka

: Introduced in Episode 20 of the anime (titled "Yuuki Kagurazaka") as the Grandmaster of the Free Guild and an "Otherworlder" like Rimuru. Yuuki Kagurazaka (episode) - Tensei Shitara Slime Datta