Aoi Kanzaki

Water Breathing

Having passed Final Selection herself, Aoi retains above-average combat training in Water Breathing, though an injury has kept her from active demon-slaying duty; she now devotes herself to nursing wounded Demon Slayers back to health.

Aoi is a young woman with deep blue eyes, straight black hair worn in twin-tails fastened by butterfly ornaments, and a perpetually stern expression. She wears the nurse-style attire of the Butterfly Mansion staff.

Tough, strict, and no-nonsense, Aoi runs the Butterfly Mansion's rehabilitation program with brisk efficiency, showing little patience for complaints, particularly from Zenitsu.