Discover the genius behind Luffy's final power-up in One Piece as creator Eiichiro Oda hints at Dr. Vegapunk's pivotal role ...

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 ...