Young, petite, and pale with graduated purple eyes, black hair graduated purple at the tips. Complex, friendly but also sadistic and cruel to demons. Insensitive at times. Agile and swift swordswoman with modified katana, her lightning-fast speed compensates for her lack of strength. Pillar of the Demon Slayer Corps, Insect Breathing. Hates demons for the loss of her sister and family. Owner of Butterfly Estate. Wears a white haori with a monarch butterfly pattern in white.