Yukina is a girl that never knew what it felt like to be loved, cared about, and never knew the touch of parents because she like Naruto and Sasuke. She has a demon sealed within her and she has the same curse mark that Sasuke has, except it's much more powerful. Orchimaru killed her parents at birth and he used her as a test subject. She has a stone heart, literally. She has the ten tails within her and sense it separated into 9 emotions, that only leaves one emotion she feels, pain. But could a certain knuckle head ninja and a duck ass change that?
5 parts