Natsume Tsuchimikado

Natsume Tsuchimikado (土御門 夏目, Tsuchimikado Natsume) is Harutora Tsuchimikado's estranged childhood friend, an onmyouji, and the heir to the main Tsuchimikado family. She was assumed to be the reincarnation of Yakou Tsuchimikado until Takiko Souma revealed that Harutora was the real reincarnation of Yakou.