To Catch A Shikari

Luffy always knew that his upbringing was a bit odd. His Dad moved them around every few months and had weird rules that didn't make sense. Luffy didn't think much of it until he broke one of those rules and started growing fur. Suddenly, he's on the run from werewolves and humans alike, that is, until he meets the smallest pack in existence run by an Alpha named Ace.