Makings Of A King

Having already lost so much at an early age, the world takes more from Ace and Luffy. After being kidnapped by, slavers the brothers are saved by someone they least expected. With them training the brothers from then on, can the world withstand the storm that will be left in their wake as they carve out their own paths. OP Luffy, Different Devil Fruit Luffy, LuffyxHarem