Clint's little sister (LokixReader)

Clint's little sister moved to the Avengers Tower almost a year ago and she stared to Train, since she noticed that she had a Hand for Knive throwing. She talked to Tony and argued with Clint until he agreed on her being a Avenger.
She is a Avenger for about 2 Months now and she would have never guessed that a little tasks could change her life.
Tw: Self harm (cutting) and not eating for a couple of days.