Noa Nagamihara has just returned to Japan to do battle with the Secret Evil Organization "Circus" as her alternate identity, Magical Girl Black Kitty. Like her namesake, the slender stalker roams the night in her shining dark purple suit. Her sharp claws of justice are aimed at the organization's henchpeople, the "LibiDolls". Their evil organization feeds on desire, and aims to rule through fear, and the extinguishing of hope. "This town...is important to me!" Yes, Noa's old hometown is under assault by the powers of desire, and she must put a stop to it. In the darkness of her obsidian black eyes, burn the flames of hope.