
She is shown to have a crush on Gai Tsutsugami, blushing whenever he compliments her and always being concerned for his safety. Nevertheless, she is a kind and strong-willed person who does all she can to help Funeral Parlor, and doesn't hesitate to give credit where credit is due when Shu suspects that he cheated in the mock battle due to the fact that he used a Void, Ayase disagrees, saying he simply made use of the one thing he was good at. Initially, Ayase is quite cold to Shu Ouma due to getting off on the wrong foot with him as a result of him bringing up her disability. She also temporarily wore the uniform of Tennouzu High School in Episode 12 when she was forced to stay at the school together with other Funeral Parlor members.

She wears a red and black battle suit for combat, several different comfortable casual outfits (often t-shirts and jeans) and sleeps in a white nightdress. Ayase is disabled and uses a futuristic red wheelchair for mobility. She has brown hair she puts up in a ponytail and chestnut brown eyes. Ayase can be described as a beautiful and slender young woman.
