Raven's Wing is a raven coat that used to belong to Yakou Tsuchimikado. It can be used to correctly identify Yakou's real reincarnation. Rumors say that the item in the agency's possession is a replica and the real one resides at the Onmyo Academy. Raven's Wing can also be used by Yakou's reincarnation to regain Yakou's memories. It originally takes the form of a three-legged raven that flies to its master. Once worn, Harutora gains Yakou's memories!