Recruit Luffy at the start and build the strongest navy.

"Big brother! We were wrong!!" * 3

Three shouts rang out at the same time, and Luffy and his two companions were seen crouching on the ground with their heads in their hands, looking exactly like they had just come out of some kind of institution.

During the few days they spent at Marine Headquarters receiving training from Zephyr, all three felt that their strength had improved considerably.

Before Kyle returned, the three of them felt that even if they joined forces, they still couldn't defeat Kyle, but at least they should be able to put up a fight.

The imagination is rich, but the reality is harsh!

Now that Kyle has returned, he has taught them a profound lesson with just a few punches and kicks.

Your older brother is still your older brother!

Meanwhile, Zephyr, who had been watching Kyle's actions the whole time, widened his eyes and subconsciously muttered:

"That brat Kyle..."

The next second, Zephyr narrowed his eyes, made a decision, and vanished from the spot in a flash.

Just as Kyle was about to reprimand the three of them again to teach them how to respect their elder brother, he suddenly sensed a threat and raised an eyebrow.

hum-

A slight whooshing sound came as Zephyr's fist landed directly on Kyle's forehead, but the punch didn't actually hit anything; instead, it passed right through Kyle's head.

The surge of purple lightning made Zephyr's fist, which was wrapped in Armament Haki, feel slightly numb.

At the same time, a hint of surprise appeared in his eyes. He had thought that Kyle would dodge his punch, and he had also thought that Kyle would take the punch head-on, but he really did not expect that Kyle would use elemental transformation to avoid the damage of his punch.

There is only one explanation for being able to achieve this level of skill.

Kyle has mastered Observation Haki!

Before Zefa could think too much, he felt a strong sense of threat coming from him. He subconsciously looked down and saw an extremely dazzling purple lightning. At the same time, Kyle's calm voice rang out.

"Thunder Spear!"

boom--

A burst of violent purple lightning instantly blasted Zefa away, sending him flying at incredible speed, leaving a trail in the air.

Although Zephyr was no longer at his peak, he was still at the level of an admiral. He reacted instantly, his feet scraping against the ground, leaving two long tracks.

As soon as he stopped, Kyle appeared in front of him instantly, slamming his foot down like a battle axe.

Zephyr immediately crossed his arms above his head and wrapped them with Armament Haki.

boom--

The moment the two made contact, a powerful aftershock suddenly spread outwards, creating a rolling wave of air that sent several onlookers flying.

Zephyr braced himself against Kyle's leg, looked up, and his face was filled with horror.

"Kyle, your strength..."

Kyle smiled.

"Teacher, have you ever heard the saying, 'A scholar should be looked at with new eyes after three days' absence'?"

"Besides, this isn't even my full strength. Didn't you want to test me out? Then let's have a good fight. Perfect timing, I also want to see where my current limit is!"

Before he finished speaking, countless thick bolts of purple lightning suddenly erupted from Kyle's body, striking towards Zefa.

Zefa took a step back, dodging several bolts of lightning. Then, he used both fists to continuously strike several other incoming bolts of lightning, shattering them all and dissipating them into tiny purple lightning snakes.

Looking at Kyle, who was standing not far away with a smile on his face, Zephyr also smiled.

"You little rascal, you've really surprised me!"

"Since you want to have a proper spar with me, then I'll grant your wish!!"

As he spoke, Zefa twisted his neck a few times, the bones cracking and popping as they rubbed together.

As the last syllable faded, Zefa's figure had already disappeared from the spot.

! !

Kyle's pupils contracted slightly as he stared at the fist that suddenly loomed larger in his field of vision.

"So fast!!"

Faced with this fierce punch, Kyle did not take it head-on, but instead transformed into lightning to dodge.

He didn't use elemental transformation to dodge the punch again. If he dared to stand still and use elemental transformation in front of Zephyr, Zephyr would give him a loving iron fist.

Elementalization is very useful when facing opponents with weaker Observation Haki. You are fully aware of their every move, and you can elementalize the parts to be attacked before they arrive, rendering their attacks ineffective.

However, it's not very effective against opponents of the same level. Using this move against an opponent with stronger Observation Haki is no different from being a sitting duck.

It's obvious that Zephyr's Observation Haki is much stronger than his, so this approach is definitely not feasible.

He also has his strengths compared to Zephyr.

That is, he is faster and has a stronger ranged attack capability!

and so……

Use your strengths to attack their weaknesses!

A flash of lightning appeared in mid-air, Kyle spread his arms, and countless purple lightning bolts shot out, forming two huge purple thunderbirds behind him.

The Thunderbird spread its wings, purple lightning crackling out, and it charged fiercely towards Zephyr below.

Boom!!

A huge explosion rang out, sending up clouds of dust and smoke, and a shockwave swept outwards once again.

Amidst the smoke and dust, flashes of lightning occasionally appeared, radiating a violent aura.

Suddenly, a figure burst out of the dust at an extremely fast speed, rushing towards Kyle above.

Kyle's expression did not change at all upon seeing this, and the lightning around him surged even more intensely.

"Thunder Dragon!!"

The lightning coalesced into a dragon shape and struck Zephyr once more.

"drink!"

Zefa let out a low shout, made a gesture of gathering power, and threw a punch just before the Thunder Dragon arrived.

The two collided in mid-air. Zephyr rushed directly into the Thunder Dragon's body and then emerged from it, while the Thunder Dragon disintegrated with a roar.

Although the Thunder Dragon was blasted apart by Zephyr, it wasn't entirely without effect; Zephyr's speed noticeably slowed down after the Thunder Dragon emerged.

"Professor Zephyr, what kind of class do you belong to, coming all the way up here?"

"Get down here!!"

The instant Kyle finished speaking, countless purple lightning spears arrived in front of Zephyr.

Zefa kept throwing punches, and because of the speed, he even created afterimages. With each punch, a lightning spear shattered.

But the problem is!!

Creating these lightning spears didn't require much physical strength for Kyle. The number of lightning spears attacking increased and they became faster, forcing Zephyr to punch faster and faster as well.

Before long, Zefa seemed to get annoyed, and the domineering aura on his right fist surged up as he threw a punch.

In an instant, a shockwave swept out from his fist, shattering all the incoming lightning spears. Countless lightning spears, like moths to a flame, kept impacting the shockwave, but to no avail.

After all the lightning spears were annihilated, the shockwave also vanished without a trace.

However, Zephyr's expression did not relax at all; instead, it became even more serious.

This was because another purple lightning spear was suspended in the air, but unlike the previous purple lightning spears, this spear was many times larger, with just the spearhead being larger than countless Zefas.

"Prepare for judgment, Professor Zephyr!!!"

Zephyr: ? ? ?

……