batman and harley quinn

A Blackgate and Arkham psychiatrist assigned to treat the Joker, Dr. Harleen Frances Quinzel instead became obsessively fixated on her patient, believing herself to be in love with him. She helped him escape confinement and took on her own criminal identity as Harley Quinn, named after the French court jester Harlequin, and would become almost as deadly as her boyfriend to the Dark Knight and ... nezuko and zenitsu