One Piece System
20.HAKI

When Luffy asked if he hated Roger, Naguri said that Roger was responsible for the destruction of their pirate group but then he said it was his own decision to disband the group. If at all, Naguri admires Roger and what he has done.

This surprises Ace because he thinks Naguri will be angry at Roger. But it's not like that. Then Ken said

"Ace is Roger's son!!"

"Kiss...."

"Huh!!!" Naguri and Luffy were shocked by this revelation. This suddenly. At first Naguri thought Ken was joking but seeing his serious face didn't seem like it. Ace is furious at revealing his secret and punches Ken, only to see Ken dodge like a professional.

"Really!! Sugoi.... You're Roger's son. It's nice!!" Luffy showed an excited expression but was also foolishly listening to Ken. Naguri after a moment of astonishment returned to her indifferent appearance. Nothing in this world has anything to do with him. He just needs to finish his boat and sail.

After a good talk, the 4 brothers left for Dadan's house with more food they had caught before. Their dinner is over so Ken just wants to give you the rest. Unlike the original story, Ace and Sabo have yet to start living in a tree house.

The next day as usual Luffy and the others went to practice while Ken went to look for Naguri. He needs to learn the basics of the three types of Haki.

"Naguri - Ossan, please tell me how to use Armament Haki."

"You know about Armament Haki? Most people in East Blue have never heard of it." Naguri was again startled by this lightning boy.

"Most people here have never even seen anyone fly." Answer Ken cynically. Thas right. East Blue is the weakest sea compared to other seas. It was as if all the power was taken by Roger, Ace, Garp and other high levels.

"Haha.... Right son. Alright since you want to learn about Busoshoku (Armament) Haki, I will teach you everything I know." Naguri accepted. He was a little curious about this flying brat so he accepted it.

And thus along with Luffy and the others, Ken had also started his training for the first time he came to this world. Naguri teaches him the basics of Busoshoku and Ken practices it. His body is strong to begin with and should be a walk in the park.

Ken thought like all the other novels he had read before, he would also be able to master them easily. Oh how wrong he is!! Even after a week of practice, Ken did not make any progress in this Haki. It's disappointing.

"Online novel. You make it look like Busoshoku is like drinking water." Ken roared loudly.

It never showed up!!

Meanwhile, Sabo's father has contacted Bluejam and talked about capturing Sabo for him before the Grey Terminal is set on fire. Bluejam hesitated to hear this. He had heard many rumors from Grey Terminal and even saw how Porchemy was defeated but the lure of money was too much.

After a long thought he accepted the task. Now he had to ambush the four children and take Sabo. It should have been easy since Sabo was the son of this man. Kids will always miss their parents.

Ken's in a bad mood. Even after 3 weeks of training there was nothing. So he gave up. He needs to see if it is just Busoshoku or the same as Kenbunshoku (Observation).

This is where Ken was surprised. He can already predict the next opponent's movements with just one week of practice. To that end, Ken enlisted the help of his brother by tying a cloth in his eyes and asking the others to hit him.

They won't hurt him anyway!

the first 5 days had no results, but on the 6th day he finally started mastering it. Soon in one more week he could predict the opponent's movements.

"So Busoshoku is the problem! Sigh!!" thought Ken.

This is a bad result that Ken does not accept. Naguri, who oversaw his training, suggested that Ken might have been too strong in the first place and that his body's potential had not been able to develop. Perhaps after he could exert more power, he could use Busoshoku. Ken thought about it and it was true.

"Thor is a fighter so he needs to make sure that he is aware of the things around him but he is never aware of the fact that he is weak. He was always strong from the beginning. And this makes me fall."

From the beginning he had a very strong body but Busoshoku was not just about a strong body. Much more than that. So from that day on Ken decided to use his body strength as much as possible in training and also train his Kenbunshoku. He wanted to be like Enel for starters.

Can hear people around with the help of his fruit and Kenbunshoku. Then he can try to be like Katatkuri!! It is a long process and it will take time. The other brothers had no idea what Ken was practicing but they did not question him and continued their ninjutsu practice. They want to be fast and agile. Able to defeat enemies in the blink of an eye.

This is the ambition first and then they will try something else. By the time they get bored, they will sneak into the Kingdom for fun. Ace and Sabo continue the practice of stealing money, but this time they will try to chase after the rich.

And here they realize. Ninjas are very good at stealing stuff!! None of them could not even see who had stolen their things, forget about chasing after the culprit.