Several years ago, before the Uchiha clan was wiped out, a little girl was born who was different from everyone else. She was something special that the members of the clan did not notice. They rejected the girl and also despised her very much. As a result, the girl was sad every day and didn't know where to go. She wondered what she had done wrong that everyone hated her so much. But one day she met Sasuke and he was 7 years old when he met her for the first time, otherwise he never saw her in the clan. The girl was sitting in the tree and made a sad face as always when suddenly someone came, she flinched at it and looked down, where she saw Sasuke. Sasuke went into the forest near Konoha and saw a girl from a distance sitting on a tree, which looked very sad.
"Hello, you there. Why are you so sad?" He asked her gently, smiling. "Um, nothing.", She said, just shyly. Sasuke didn't really believe her and climbed up onto the tree, whereupon she just looked on in astonishment. "What do you want from me?", She asked confused, backing away a little, as well as it could only be in a tree. "I want to know why you are sad.", He said when he was upstairs and looked directly into her face and looked exactly into her jet-black eyes, and his face rose a bit, because he has never been so pretty Girl had seen. "She has such beautiful eyes.", He thought, then sat down next to her, automatically turning her cute face away, because she didn't like it when someone saw her like that, it was downright embarrassing and uncomfortable for her. "I don't want to talk about it ...", she said a little broken, while she was about to start crying again, but she tried as best she could to hold it back. "hm ...", only came out of Sasuke's mouth, "But I just want to help you." Which startled her a little and looked at him puzzled, because she didn't really want to believe him, a few of her black strands of hair fell into her pale face. Sasuke looked into her cute face, again he blushed a bit, but then just takes her hand and walks with her down from the tree, while she continues to look at him puzzled. "Where are we going?", She then asked, she wasn't used to the whole thing and at the same time was a bit scared. "Will you see in a moment.", He said, smiling lovingly at her, and the girl fell in love with him.
But one day the Itachi clan was wiped out and only Sasuke survived. It would mean that that girl from back then was also killed. But her corpse was never found, and she should have had contact with Madara and that this is her sensei and master, but nobody knows exactly what really happened and who she is. Only Itachi and the 3rd Hokage know about her and who she really is.