Rwby x Op male reader: The rise of Remnat's hero

This is a story of a young boy name Y/n L/n who was once a bounty hunter, tracking down criminals, gangs or terrorist in order to protect the innocents of Remnat while tracking down an assassin who murder his whole family except for him. But soon his real journey begins when he encounter a man named Ozpin who seen his skills in battle and offer him to join him at his academy to train students how to battle the Grimm, with no where else to go he accepts to be a student but little did he and everybody else know there is a hidden power within Y/n that will change mankind and the world of Remnat as he maybe the only one who can save the world from it's destruction.