Kamon

華紋

Kamon is a former compatriot of Mao who attended the same onmyodo school. Often regarded as a ladies' man, Kamon was in town courting a girl on the day Byoki attacked, returning just in time to witness widespread devastation and death. Hyakka was the one who briefed him (incorrectly) on the events, explaining that Mao had betrayed everyone and stolen Byoki's power for himself. Like Hyakka, Kamon was invited to the Five-Sided Room meeting and was assigned the task of assassinating Mao 900 years ago.
Over the centuries that followed, Kamon adopted the alias "Kuchinawa" and continued to operate within the upper echelons of society. He does not hesitate to use his powers to influence the minds of the wealthy, thereby gaining access to their privilege and generosity. When Mao encounters him again centuries after their last meeting, Kamon is using his Kuchinawa alias while serving as a butler for the serial killer Tanehiko. In this role, Kamon has been forced to dispose of Tanehiko's victims' bodies, but when he discovers the man attempting to murder Tenko, a yokai girl, he intervenes and rips Tanehiko's heart out.
Kamon is skilled in wood manipulation, allowing him to control various trees and roots to attack his enemies. After meeting Mao, he begins working with another ally, Beniko, who serves as his assistant much like Otoya does for Mao. Kamon is particularly interested in Shiranui due to the belief that the onmyoji had attacked him at sea some years ago in a failed assassination attempt. He eventually learns that Shiranui has kept the corpse of his deceased lover, Masago, as a tool to use her lingering powers against his enemies.