Shikigami

Shikigami (式神) are a kind of spirit summoned to serve a practitioner of onmyōdō, much like a western familiar. Shikigami cannot be seen by most people, but according to the Heian period onmyōji who were said to control them, shikigami often looked something like a child-sized oni demon. Although invisible, shikigami supposedly could, at the onmyōji's command, take a variety of human or animal forms, possess or bewitch people, and even cause bodily harm or death.

Users of Shikigami

 * Haizo Hyuga