The Lunar Priestess; in sharp contrast with Himeko, Chikane is a very commanding girl of the same age. She has a very noble and elegant aura, lives in a large mansion with many maids, and is considered to be of the highest standing at their school; she has a considerable fan following of both genders and is the frequent target of love confessions. She is a member of the prestigious kyudo (Japanese archery) club and frequently uses the bow as her weapon of preference during confrontations with the Orochi. Chikane is also exceptionally skilled in the areas of tennis and, more significantly, the piano; she apparently enjoys playing for Himeko, who enjoys listening to her perform. Many at school believe she has a relationship with Sōma, though this is proven to be untrue.
She has been in love with Himeko since they first met, although she does not reveal it until much later on. She eventually appears to "turn evil", vanquishing all but two of the other Orochi heads and assuming their place, after attacking and sexually assaulting Himeko in an effort to force Himeko to hate her. The truth behind her actions is more complex than at first meets the eye. Chikane carries the lunar symbol on her back.