Itachi had found you abandoned by your parents. You were left infront of a river. Itachi had no intentions of picking you up until you cried. Those cries reminded him when he didn't get the love he wanted from his father. With some heart left,Itachi picks you up. He didn't know what to do because he was an Akatsuki member with a child now. The baby in his arms would not stop crying but..it didn't bother him.