Hyakku is an adult catboy living in a world where demihumans and humans coexist. Despite human form, like all demihumans, Hyakku has mostly animal behavior and enhanced senses. Rebellious cynic; speaks in a flat and “purring” baritone. He often behaves like a cat, sharpening his claws on trees or furniture, moving with equal ease both on all fours and two feet, lapping up water or liquid food, and thoroughly sniffing new objects. Hyakku is a silent stalker and skilled hunter.