Bellriver

Bellriver (ベルリバー) 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.

Background
Bellriver was one of the Supreme Beings involved in the design of Spa Resort Nazarick.

Trivia

 * In the Web Novel, Bellriver is the strategist of Ainz Ooal Gown.