As One Piece approaches its Final Saga, Luffy's growth is pivotal. While Rayleigh helped him master Haki, Dr. Vegapunk may ...

One Piece has been showing off with a new fight between Gear 5 Luffy and Admiral Kizaru, and a new theory is suggesting that Gear 5 Luffy has been holding himself back all this time. Gear 5 has been a ...