The Whispers of the Wind(Cole x Male reader)

Y/n has been living with Sensei Wu after running away from his family at the age of 5. Wu gladly took him in, raising him as his own. He avoids talking about his past. He keeps lots of secrets and seems independent most of the time. He's scared of his past coming back to haunt him, the only one who somewhat knows about this is Sensei Wu since Wu raised him after Y/n was abandoned at the age of 5.
What happens when the ninja eventually find out what happened to Y/N in the past?