Kunoichi 3: Dark Butterfly is an adult-oriented animated film produced by Studio FOW, released on December 14, 2018. This 39-minute feature serves as the third installment in the Kunoichi series, continuing the dark fantasy narrative centered around Ayane, the last surviving member of the Mugen Tenshin clan. Set against the backdrop of a devastated Tokyo, Ayane confronts demonic forces and corrupted former allies, striving to thwart an ancient ritual aimed at resurrecting the Queen of Blood, Elizébet. The film is noted for its explicit content and is intended for mature audiences.