Uruno is a wolf exiled to the "Useless" Forest for lacking typical lupine aggression and fierceness. He embodies extreme shyness, passivity, and timidity, frequently enduring physical outbursts from Usahara the rabbit. His personality defies species expectations; he cries easily and proves highly gullible, especially when tricked by Yunihiko the unicorn.

He develops a close bond with Peganosuke the pegasus over their shared self-doubt. Peganosuke takes him flying, offering new perspectives and moments of growth. Uruno harbors romantic feelings for Chiiko the cheetah, admiring her despite her clumsiness and poor hunting skills. He consistently eats her poorly prepared food as a gesture of affection, often resulting in illness.

His relationships show subtle development. Though regularly abused by Usahara, the rabbit displays underlying concern when Uruno disappears, suggesting mutual care beneath their conflict. Visually, he occasionally shifts to unexpectedly handsome depictions. As the group’s emotional core, his journey underscores themes of acceptance and unconventional community.