Daki

Blood Demon Art: Obi Manipulation

As one half of Upper Moon Six, Daki's Blood Demon Art animates her obi sash into razor-edged, shape-shifting blades capable of cutting through multiple Hashira-grade slayers at once. Her awakened form emerges once Gyutaro's true body bursts from within her back during the Entertainment District Arc, merging their power before Tengen, Tanjiro, Inosuke, and Zenitsu bring them both down.

Daki appears as a strikingly beautiful young woman with long black hair, sharp red eyes, and an elaborate courtesan kimono, posing publicly as an oiran in the Entertainment District. Her demon form adds sharp fangs and an obi sash that moves like a living weapon.

Daki is vain and cruel, quick to rage when disrespected or when her beauty is threatened, and she casually murders the humans under her control for minor slights. She is fiercely protective of her secret sibling bond with Gyutaro, whom she publicly disowns to keep them both hidden.