Recruit Luffy at the start and build the strongest navy.

Bang!

A dull thud was heard.

The door to the marshal's office was violently pushed open.

Sengoku, who was processing documents inside, suddenly made a stroke, and a long diagonal line appeared on the documents on his desk.

Veins bulged rapidly on Sengoku's head, and anger instantly filled his eyes as he abruptly looked up.

"Card……"

The shouting stopped abruptly.

Sengoku stared blankly at the newcomer, his brow furrowed, and asked uncertainly:

"Zeff?!"

Even though Sengoku couldn't possibly mistake the appearance of the newcomer, he was still not entirely sure.

Theoretically, such an act of violently breaking down a door should only happen to that old guy Garp.

When did Zephyr become like this?

No! !

Garp is already putting a lot of pressure on his gate, and if Zeff comes along too...

Does he still want this door?

Before Sengoku could speak, Zefa's voice came over.

"Sengoku! Hand over your grandson to me, and I will train him to become the strongest navy!!"

???

(⊙o⊙)？

The Warring States period was stunned, utterly stunned.

No, what kind of nonsensical things is that old guy Zefa saying?

Is there something wrong with your brain?

Is it...

"Don't even think about it, you old codger. I'm talking about your grandson, Kyle!"

"I want to be his teacher, and I will definitely make him the strongest naval officer I've ever taught!!"

Zefa's eyes were filled with excitement and exhilaration.

He has been the chief instructor of the Navy's elite training camp for many years.

If we're talking about who in the Navy Headquarters has the most authority to speak on the topic of potential, then it has to be him.

He had just witnessed Kyle's immense potential.

It wasn't the opponent's Devil Fruit ability that exuded an aura of extreme destruction.

Rather, it's that incredibly powerful physical potential!

Don't ask why he could tell.

If you can tell, you can tell.

As a veteran of the Marines, Zephyr values ​​physical strength more than Devil Fruits.

Therefore, regardless of which students he was facing, he always emphasized that physical fitness was the most important thing.

But this doesn't mean that Devil Fruits aren't powerful.

On the contrary, the power of Devil Fruits is very strong, extremely strong!!

Especially powerful Devil Fruits, which can greatly enhance the user's strength.

Of all the students he has taught, three stand out the most.

They are all Logia-type Devil Fruit users.

Two of the students have already become active-duty naval admirals, and the other student will likely only be a few years away from that goal.

At that point, barring any unforeseen circumstances, his position will likely be taken over by the other party.

Therefore, he never thought that Devil Fruits were weak; he simply believed that one should not rely too much on the power of the fruit.

The combination of Devil Fruit abilities and physical prowess is what creates the strongest navy, a well-rounded force.

In this respect, both Kuzan and Sakazuki did a good job, not neglecting their physical training while developing their Devil Fruit abilities.

On the contrary, Borsalino, the oldest among them, relied too much on his Glint-Glint Fruit ability and neglected to train his physique.

That's why he wasn't too happy about Borsalino this afternoon.

The two really don't get along!

This is normal. Even if a student is very capable, if he doesn't listen to the teacher and is a troublemaker, the teacher is unlikely to like him.

He could tell that Kyle's Devil Fruit ability was extremely powerful, and the extreme destructive aura made him feel a little uneasy.

He feared that if left unchecked, Kyle would follow the same path as Borsalino, focusing too much on developing the fruit's abilities and neglecting his physical health.

This is something he won't allow!

To him, Kyle was like a piece of uncut jade, and he absolutely could not let it be ruined.

He could do nothing about Borsalino, but that sleazy guy's physical potential was indeed not very strong.

Anyway, he said it, whether you want to listen or not is your business.

But Kyle can't!!

With such immense physical potential, he must be the one to teach him; only he can teach Kyle well!

He was still a bit confused looking at the Warring States period, not quite coming to his senses.

Zefa frowned and uttered another sentence.

"I'm just here to inform you, not to ask, since you're that little guy's grandfather!"

"Kyle must be my student, and no one can stop me from doing that!!"

After saying that, Zefa turned to leave.

"etc!!"

The voice of the Warring States period came from behind.

Zefa turned around and saw Sengoku with a furrowed brow.

"Are you sure you're talking about my grandson Kyle, and not someone else with the same name?"

"I'm not so bad that I wouldn't recognize your grandson!"

The Warring States period's brows furrowed even more.

His grandson? Will become the strongest navy?

Are you kidding me?!

Doesn't he, as the grandfather, know what level his own grandson is at?

Before Sengoku could speak, Zephyr continued:

"Your grandson's lightning abilities are very powerful, but I'm not particularly knowledgeable about the development of his Devil Fruit powers!"

"But at least I can guarantee that I will fully unleash your grandson's physical potential!!"

"so……"

"etc!!"

Sengoku interrupted Zefa, his eyes widening like copper bells.

"What did you just say?"

"My grandson's lightning abilities? When did he eat a Devil Fruit? How come I didn't know?!"

"you do not know??"

This time it was Zephyr's turn to be shocked, and then he looked at Zephyr with disdain.

"What kind of grandfather are you? You don't even know anything about your own grandson!"

Sengoku forcibly suppressed his shock and looked at Zephyr.

"Did you see with your own eyes that brat Kyle has Devil Fruit abilities?"

"What else? It's over there on the back hill, I just saw it!"

Sengoku remained silent for a long while, then suddenly stood up and walked towards Zefa.

"Come! Lead the way, let me see for myself!"

……

On the other side, on the hill behind.

With continuous training, Kyle's mastery of his Devil Fruit abilities improved somewhat.

The number of times they hit trees has decreased significantly.

Each time the purple lightning flashed, Kyle's figure would instantly disappear and then reappear dozens of meters away.

Lightning travels at the speed of light, making it no less fast than the Glint-Glint Fruit.

Moreover, it is more flexible than light, and can be bent, which means it can turn without having to rely on reflection to turn like Kizaru.

Before he obtained the system, he thought that once his physique became stronger, he would learn the "Shave" technique from the Six Styles of the Navy.

It seems unnecessary now.

Even if you rely on your body's explosive speed, can you be faster than lightning?

As for the other six styles of Kyle, he had absolutely no idea.

Especially that iron block, which is known as the "strongest defense".

Kyle thought that people who practiced this technique were all a little bit mentally unstable.

Faced with the attack, his first reaction was not to dodge, but to shout "Iron Block!" and then stand still and passively take the hit.

That's a bit too abstract!

"Kyle?!"

Just then, a familiar shout came from not far away, causing Kyle, who was practicing, to stop and turn his head to look in the direction of the sound...