Sister "Wednesday"

13-year old Xernia, is the adopted daughter of the Zoldyck family. The family keeps trying to not let her know that she from another family but she already knows the truth. She joins the hunter exam with her brother and meets a 'creature' that knows something about her family's whereabouts, but that doesn't end there. The creature's knowledge extents to her name, last name, her family and the reason why she was given to someone else. Will she find out her history or will it remain a mystery?

I only own the twists and turns made to the original plot and oc (and family) because-

HxH + me= hisoka dancing in a monkey costume