Beast King Mekongawa

Beast King Mekongawa (獣王メコン川) is a guild member of Ainz Ooal Gown, and regarded as one of the 41 Supreme Beings by the NPCs of the Great Tomb of Nazarick.

Quotes

 * (To Nishikienrai): "Ehh?! What did you say? Doesn’t that mean you’re a super top-class player? I’m just a Green. Maybe I should quit Aberage"