You were left on their doorstep while you were a baby. (2 years before Boruto was Born) Blind in the right eye. Not having anywhere to take you.. they took you in. Raising you as their own. Knowing you're adopted years later didnt stop you from loving Naruto and Hinata as your own parents. And after Boruto and Himawari were Born they only made you feel more loved. Tho soon Enough your father became.. a lot busier. Not having time for anyone.. Not You..Boruto or Himawari.. not even Hinata.