Even as a child, Felicia Hardy was always fascinated with the world of fantasy. It was full of so much excitement and adventure that she wanted to become a part of it herself. She remembered the first comic-book her mother and father bought for her back when she was six years old, back when they had just moved into Queens. It was an issue of Batman, and it featured him trying to stop the Riddler and Two-Face from taking over the minds of everyone in Gotham City for a bribe of $50 million. It was jam-packed with so many thrills and action-sequences that she instantly fell in love with it. Everything about it made Felicia feel happy and content, and she was able to convince her parents to let her get a monthly-subscription for it.
With every issue that she read, the more she became immersed inside the fictional world of Batman. Felicia greatly admired his courage and bravery when going into battle, and also his determination to fight injustice. She also felt sadness in his origin, because his parents were murdered right in front of him as a kid by a common hoodlum. She also took great moral values from him, such as being able to work hard to reach a goal, keeping your body and mind in full-focus, and always try to help others. Because he possessed all of these qualities, Felicia wanted to be just like him.
However, there was another character she admired, and she wasn't as great of a person as Batman. It was Selina Kyle, Catwoman. While typically portrayed as an adversary of him, Felicia liked her carefree, adventurous lifestyle. She didn't really care for her criminal exploits, but she thought that her frequent on-again/off-again relationship with Batman, along with her anti-hero alignment with him from time to time, were interesting enough for her to enjoy the character. In addition, she also found her black-leather cat-themed costume to be interesting, since it reminded Felicia of her pet cat, Onyx.
Combining the moral qualities of Batman and the adventurous lifestyle of Catwoman, Felicia aspired to become just like them. She wanted to be a superhero herself, and she would keep this in mind for many years to come.
However, she didn't know that she would actually get there, and she didn't know of the price she would have to eventually pay.