Conqueror's Haki from Joyboy drastically overshadowed even Shanks and Luffy's capabilities. Even though Haki training is essential for High-Ranking Marines, they too have limits against powerful ...

Although they were rather weak when compared to the monsters of the New World before the timeskip, following this 2-year training ... he needs to be. Luffy has to level up his Haki tremendously ...