Emimam

I need help finding a story
          	So I read it a couple of months ago and can’t remember the name. 
          	It’s a bout a boy who moves in with his sister (she is a cop and works a lot). He is quiet and don’t really talk much and don’t want anyone to touch him. He is also really smart. He was adopted into the sister family after something bad happened. 
          	
          	He falls in love with a cop his sister works with. The cop kinda has a crush on the sister in the first chapter. 
          	
          	Please help me