Aoi is tough, uncompromising, strict and serious, displaying an efficient and no-nonsensical attitude nearly at all times. Her personality is somewhat similar to that of a younger Shinobu Kocho, being loud, volatile, and open. She often appears angry, generally displaying how she feels very clearly. However, she does occasionally express more tender emotions such as declaring her enjoyment of the time spent with Tanjiro, Zenitsu, and Inosuke.