(Wicked Lady in the dub) is the brainwashed form of Chibiusa. When she returns to the future with Sailor Moon, Chibiusa becomes Black Lady when she is captured outside of the Palace. Wiseman comes across the lonely Chibiusa, who is feeling frustrated after a failed attempt to revive her mother, and twists her memories of her family to make her do his bidding. Wiseman converts her by laying the seeds of guilt for what she has done, and by telling her nobody loves her. Infected with the power of the Black Crystal, she grows older, donning an organdy and satin dress and the earrings worn by the Black Moon Clan. Her hair becomes even longer than Usagi's. Her crescent becomes that of the Clan, and she is frequently seen with Prince Demand or Wiseman. As Chibiusa's dream is to become a beautiful lady like her mother, Black Lady's form is something like a femme fatale.
Her history and personality differ between the anime and the manga.
In the anime, Black Lady hates her family and the Sailor Senshi and tries to kill them because she believes she is unloved. She also considers her toy, Luna-P, as her only friend. Black Lady tries to kill Sailor Moon and Tuxedo Mask, but is saved from her anger by Sailor Moon, who changes into Neo-Queen Serenity and embraces her daughter, allowing her to turn back into Chibiusa.