Belle Reve

What if the Joker first fell in love with another girl other than Harley? She is also locked up in Belle Reve,joins the Task Force X team and her sister happens to be June Moone. Will he be able to save her dear sister or will something a lot worse happens to her?

I don't own the storyline or any of the other characters except mine. The cover was made by @xPierceTheCourtneyx so thanks for making it for me.