Origins: Brought up by a maniacal villain, after learning that everything she knew was a lie, she helped in said villain's downfall at the hands of the hero Batman. From there, she was raised by the Quinzel family, her mother teaching her a lot about psychology. She was brought to therapy and eventuall learned to deal with the memories of "The Joker," whom she was convinced by everyone were much worse than he really was. Despite her past, she decided to become a hero, and her quirk, Pocket, became essential in their training and fighting style. She eventually visited the villain who raised her, who went by the Joker, and learned that he had DID as well. Jack, as the mild mannered alter was called, had been working hard to repress the Joker, his other half, and hoped to return to society, but Harley had a bad feeling about such a thing.