Barbara Gordon also known as Harley Quinn was supervillianes who in past was Jason Drake classmate who pulled cruel pranks on her classmates but got her ass handed by him so she ran to chemistry class spilled random chemicals on herself bleaching her skin stealing an women Harlequinade suit from early renaissance and called herself Harley Quinn her goal is to blow up the city in so much fun that it will be rebuild as her personal circus she can have unlimited fun in she hates Robin for humbling.