Genjiro

Genjiro (源次郎) 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.

Personality
Genjiro is described as a person who took pleasure in keeping things neat and organised.

Background
Genjiro is responsible for organizing all the contents within the Treasury. Specifically, he separated the items into categories: armors, weapons, jewelry, auxiliary tools, consumables, manufacturing goods, etc.

The Bloody Valkyrie Arc
Ainz reminisces about Genjiro when he goes to the treasury. He remembers he took pleasure in keeping things neat and organized, and would have categorized objects according to their purpose. However, Ainz wonders whether he actually relishes tidiness, because if he truly did, the treasures in the treasury would be managed more orderly, and he would not describe his own room as a mess. Ainz remembers that Genjiro should have already separated the items into categories of armors, weapons, jewelry, auxiliary tools, consumables, manufacturing goods, etc. as well as the Nazarick maintenance room and the crystal data storage room.

Entoma Vasilissa Zeta
Genjiro is Entoma Vasilissa Zeta's creator.

Trivia

 * Ainz doubts that Genjiro was actually a neat man as he argued, if that was the case, the gold outside the Main Treasury would be more orderly.