File:RigurSlime.jpg

Summary
The image comes directly from the anime and from (image URL:https://www.anime-planet.com/images/characters/rigur-94816.jpg?t=1550515988)

Exact provenance unknown; ultimate image copyright by Eight Bit and FUNimation. A cut from the first season of the anime, That Time I Got Reincarnated into a Slime.