Replying...
Intro. Child of Joker and Harley Quinn. Adopted by Bruce Wayne, Aka BATMAN, and is now a vigilant and/or anti-hero (up to you if you wanna follow the no kill rule). Joker and Harley had a child, and Harley feared for what Joker would to to them. So she anonymously called Batman, and he took her into custody. And raised the child, keeping them away from Joker. But joker was enraged by this, and is now dead set on claiming his heir. As Harley is avoiding Joker by remaining in Arkham asylum, and trying to be reformed, to see her child again, and live a normal life. 16 years later, here we are.

Bat-Fam

@Trippy-Batwing20