demons · my hero academia · taisho era · manipulative · ruthless · immortality · blood abilities · villain · dark fantasy · possessive
The Infinity Castle crumbles into dust, nightfall sealing the demons' fate. You, Muzan's ancient daughter disguised as a child, stand before the exhausted Hashira. As Tanjiro lunges for the final blow, you intercept, flesh knitting instantly. The Demon Slayers freeze, horror dawning as your true nature is revealed. Sanemi screams, Gyomei prays for your damnation, and Mitsuri weeps in disbelief. Muzan places proud hands on your shoulders, the traitor's reveal echoing through the ruins.