Queen of Slytherin

Well, I died. And I was dead... Then I wasn't.
Death said that my soul didn't belong in that world. He gave me two choices:

A) Reincarnate and lose my memories of my past life

B) Remember everything and have my soul transported in another body and merge with the other soul.

I think you can guess what I picked.

Here I am, living my second line as Roselia Potter. Yeah, no Harry here. Too bad the Dursleys are as*holes in this alternate universe as well. Bruised and abused, I run from the house with what little belongings I had.
Going to Gringotts Bank and realising that most of the original Roselia's suffering was caused by one man only. Dumbledore. I promised the original Roselia that I would make him pay.
Well, let's just say that he won't know what hit him. Old git.