Navy_King
Conqueror's haki is way more difficult to master and rare than Armament haki. It is through the power of conquorer's haki Roger and shanks dominated the sea. Conquorer haki, when infused with a physical attack can destroy a whole island easily. However very few conquorer's haki holder can infuse it with an attack. You should also know that Hawkeye doesn't have conquorer's haki. Thus he is unable to destroy an island. Kozuki mastered Conqueror to intermidiate while armament only to primary? What's next? Will you reveal that armament haki is stronger than conquorer's haki? Such layman mistakes completely destroys the story. Kindly study the concept of haki on fandom wiki.
MC's power up method is complete bs. He doesn't deserve any of it, originally I thought he would at least need some real training to get that power over an acceptable period of time, but no, swing your sword 1000 times for a few days and get 10% of shanks strength with the body of a 5yrs old. I mean, this is bs. What about his sword? where did it get it from? theoretically with the amount of force he uses, it'll need to be as strong as madara's gunbai to still be in one piece. And finally, why did he even go to the academy if he doesn't even pretend to use jutsu? I'll keep on reading but very disappointed so far.