Aoi is tough, uncompromising, strict and serious, displaying an efficient and no-nonsensical attitude nearly at all times. While performing her duties in the Butterfly Mansion, she is effective and pro-active. She often appears angry, generally displaying how she feels very clearly. However, she does occasionally express more tender emotions.Despite her somewhat gruff demeanor, she is kind and caring, doing her best to help the Demon Slayers that came to the Mansion rehabilitate.