You are Credence Barebone's sister. You are the same as your brother; you are an Obscurus. You have caused a lot of trouble for the New York Ministry of Magic, not being able to control yourself when you became an Obscurus.

Now you were sitting by the rails near the Ministry of Magic building, shivering from the cold. Percival was looking for you to kill you. Your brother was far away from you and could not help. But, you heard a quiet male voice.

— Hey... — You turned around to see Newt Scamander. The Magizoologist guy who had a big bounty for his head.