Harley Quinn Daddy's Little Monster is one of the most iconic supervillains created by DC Comics for their readers. The evilness and attitude have been precisely proportioned to create an evil soul, similar to Harley Quinn. As the Joker's lover, she has been involved in crimes and evil acts that have completely transformed her personality from good and subtle to malevolent. Margot Robbie's portrayal of Harley Quinn in Suicide Squad cemented her as the iconic girl crush. To be more specific, she is unquestionably the female version of the Joker, ensuring that her acts of inhumanity satisfy the Joker.
Source: Harley Quinn Jacket