The Wu of Kaiyanwang. He assumed command of Kaiyanwang's demons after his master was sealed away by Parvati. He's spent the last 300 years searching for ways to revive Kaiyanwang from his sealed prison. Before becoming a Wu, Benares was a powerful dragon monster who consumed various holy demons. This allowed him to absorb enough intelligence to eventually transform himself into the humanoid being we see today. Benares is a highly powerful figure within the demon world physically, magically, and politically, and strikes fear into even the bravest of souls.

(wikipedia)