User blog comment:Pualover/Overlord Power Level/@comment-26902975-20151113141402/@comment-32428067-20170723072557

Hehe, In the WN the other guild members teased Momonga for refusing to "spend" scrolls and stuff even during a boss fight.. Despite him being an hoarder of cash items/scrolls/wands etc.

He´s amusingly tightfisted/greedy at times, but yeah.. He calls it his collector instinct :D