The sister of Harley Quinn

What if Harley Quinn had a sister named Hayden Quinn this will include there back story so get ready for that

Note from hayden~

I wasn't always crazy and my sister wasn't ethier until the day we met the joker are lives turned around after that I became crazier every day until I was fully crazy I even changed my name to Hayden Quinn my full name is Haley quinnzel but the joker changed it but I'm not in love with him like Harley