The Flame Dragon sailed across the sea for nine days. Thanks to Herbert's Gale-Gale Fruit ability, the ship moved exceptionally fast. The journey had been smooth all the way, with no unexpected incidents.
Over the past few days, Julian had continuously trained Herbert's Conqueror's Haki. The method was simple: they activated their Conqueror's Haki and clashed head-on. Though Herbert's Conqueror's Haki had only recently awakened, he had gained a great deal through several days of training. Julian, meanwhile, had been constantly developing his Armament Haki, hoping to break through to the next level.
Julian currently possessed Admiral-level strength. After activating Flame Emperor God of War Form, he could at least fight evenly against a Fleet Admiral-level powerhouse. He continued to focus on training Conqueror's Haki. It was the strongest of the Three Types of Haki. If one cultivated Conqueror's Haki to its highest level, a single glance could knock down a whole crowd of opponents.
During the Marineford Arc, Sakazuki, who had low-level Emperor strength, had been left drenched in sweat by Red-Hair's Haki. During the Wano Country Arc, Admiral-level Ryokugyu had been forced by Red-Hair's Haki to exit his tree-man form. Not to mention Vice Admiral Mole, who was only near-Admiral level and had passed out outright. Even Kizaru and Fujitora, two top-tier fighters, had been directly frozen in place. It could also be infused into skill attacks, which was why Julian now focused on Conqueror's Haki.
The development of his Fire Dragon Form Devil Fruit ability would be accelerated through Rose's Gene Potion. As his Fire Dragon Form ability developed, Julian's flame temperature had risen considerably, nearing eight thousand degrees. He now felt that the more areas there were to train, the more time it took. After Herbert began comprehensive training, all matters aboard the ship were handed