Rōrō

, a wolf yōkai, was the protector of the Wolf elder of the Northern Wolf Demon Tribe. He was killed defending the Wolf elder.

History
As a diversion to protect Ayame and the Wolf elder, Rōyō attracted many demons who fled from the mountains of the north to escape Kyōkotsu.

He was found dying by Kōga, who saved him from the demons. However, after telling Kōga, Ginta and Hakkaku of Kyōkotsu's attack, Rōyō died and was buried.

Manga vs. Anime

 * In the manga, Rōyō was simply a wolf demon that escaped from the mountains of the north due to Kyōkotsu.