A shikigami and a faithful servant of Madara Yakou. He is not the only one of his shikigami; the other one is Niko. Teirei has a sober, honest, and polite personality. He is very restrained, even if he faces a person whom he deems unpleasant. It is easier to deal with him rather than with Niko. For some reason, he does not like Kyougetsu Keishirou and Sakuya.