One Piece: Fifth Emperor

a child prodigy, a child that grew up training with the most elite warriors. That child would soon grow up the become one of the strongest in the world and unofficially claiming the title, "Fifth Emperor" Imai Ryujin, who knew the the who possessed such an unusual name would become a terrifying monster that would shock the world. "It's been three years since my seclusion, what new monsters have entered the world?" —- will include fillers, movies , other arcs, etc.