dvrgntandthgfan
Sandra has lived in Wayne Manor since she was nine. Her father had left her in the hand of billionaire Bruce Wayne, and she was exposed to all of his secrets. She's bonded with each Robin, more so than she thought they would. But, of course, there just has to be some complications in her life, doesn't there? Sandra learns that she is something--or more accurately, someone known as the Unbreakable Heart.
***Note, this story has a polyamorous relationship, so if you don't like that, turn back.
I really need to stop using the name Sandra, but Sandra is literally me in fantasy world, so...
I DO NOT OWN ANYTHING BUT MY CHARACTERS! ALL RIGHTS GO TO THEIR RIGHTFUL OWNERS! Also, the title of this story is the title of a Three Days Grace song, of which I will be borrowing the lyrics from.