The shikigami in Yami no Matsuei are guardian spirits; creatures which can be summoned by shinigami. When in battle in the living world, shikigami appear as various types of mythological creatures. There are different kinds of shikigami, roughly divided by the four elements, earth, wind, fire, and water. The majority of shinigami can only summon two or three shikigami. The single exception is Asato Tsuzuki, who commands the power of twelve high-ranked shikigami. They include the following: