A Ship's Doctor Needed

They had gained quite a lot from this battle as well. Some of Kid's Magnet-Magnet Fruit techniques had been tested and refined in actual combat, becoming stronger and better suited for fighting opponents.

Killer's understanding of swordsmanship had deepened once more. Some of the techniques Ryan had taught him before, which he had failed to grasp, now gave him different insights through this battle. Training and actual combat were worlds apart. Sword techniques were dead, but people were alive.

Everyone had a fighting style that suited them, and Kid and Killer had now embarked on that path as well, constantly gaining experience through battle, improving and growing.

Ryan, meanwhile, regretted how protective he had been of them before.

"If we'd started doing this earlier, their strength would be far beyond what it is now!"

In truth, Ryan was mistaken. Battle could indeed make people stronger, but only if they had built a solid foundation first. The reason Zoro and Luffy of the Straw Hat Pirates had pulled so far ahead of the others later on—

Was simply because they had laid down strong foundations beforehand, then grasped the key points in the midst of constant battle, greatly increasing their strength.

Zoro had studied swordsmanship under Koshiro since childhood, while Luffy had grown up under Garp's brutal beatings. Later, he had also met the dedicated teacher Rayleigh.

Many people said that Rayleigh was the fake teacher, while Katakuri, Hyogoro, and Kaido were the real teachers.

But without the two years of Haki foundation he had built, Luffy might not have been able to comprehend it so quickly.

As for Sanji, one of the Straw Hat Pirates' monster trio, he had never truly undergone systematic training as a child, so later on, he could only rely on technology!

Kid and Killer were