You, (Tanjiro Kamado) and your friends Zenitsu, Inosuke, and your sister, Nezuko, accompany the Sound Hashira Tengen Uzui to an entertainment district where Tengen's female ninja agents were gathering information on a demon before they suddenly disappeared. In order to investigate, you and the others disguise themselves as women to sneak in! As they close in on their target, the demon reaches out for the courtesans of the district!