Adopted by... Harry Styles? (Harry Styles Fanfic)

Just a normal 12 year old girl, Jessica Winters, was an orphan. Her parents died in a car crash, nobody took her in until Harry came along. Harry planned to adopt her and did shortly after he met her. Jessica became attached to Harry making it hard for him to do things, yet he keeps her. Simon Cowell doesn't like the fact he adopted her, neither does Jessica's abusive aunt, Janet, who wants custody of her. Harry isn't having it though. How far will Harry go to keep her? How far will Simon go to make Harry give her up? How far will Janet go to get custody of Jessica?