Animeverse Slayer!

Leo landed lightly beside Shinobu. A pair of piercing blue eyes focused on the menacing Yonko.

Feeble woman? Feeble, my ass!!

It was only now the others woke up from their shock. The first thing they thought wasn't about his arrival but the words he said.

Shinobu slaughtered an entire fleet that attacked her. She went to the mastermind's lair and killed every one of his subordinates and poisoned the mastermind to death.

Such a woman was feeble? Everyone wanted to cuss.

Kaido stared at Leo and grinned, "You are that marine who killed one of my subordinates a while ago. Good, now I don't have to search for you."

Leo curled his lips, "Hundred beast, Kaido. They say you are the strongest creature in the world. How about we take this somewhere more private."

"Worororo, fine."

Issho took a step forward and slashed his wooden cane. The ground beneath Leo and Kaido cracked and started to float.

"Quick! Follow them!"

"Why are you imbelices standing around?! Move!"

The forces keeping an eye on Dressrosa moved towards the vicinity of their battlefield.

When they reached the island they saw Kaido rushing towards Leo. He grabbed the bagua hanging on his waist and swung it. The air produced sonic booms as the bagua slammed at Leo.

Leo raised his sword and slashed. His domain was fully released and sword rays flew everywhere enhancing his every move.

When their weapons met the air cracked and the sky turned dark.

What incredible power!!

A massive amount of raw strength was transmitted to Leo when their weapons collided.

Leo slightly loosened the strength on his sword and used the force from the bagua to twist in air. He went past the bagua and slammed his foot down.

His feet was clad in busoshoku as he struck down. Kaido just raised his head when a foot landed on his face.

Bang!!

Though Leo seemed tiny when compared to Kaido his kick was anything but weak.

Kaido flew through the air and crashed into a small mountain.

Rumble.

Leo landed on the ground and stared at the mountain.

Kaido pushed shrugged off the rocks that fell on him and walked out without a single scratch on his body.

"You need to put more strength into your attacks. It barely Itched."

He said with a grin.

When he first came to this world. He was at best the level of a captain. However after months of training his strength increased exponentially.

Dragon-Tiger breathing constantly circulated 'Breath' within his body, invigorating his cells and strengthening his body.

When he fought against Big Mom his physique, haki and sword mastery was inadequate, he couldn't match her.

But now, now it was different.

His physique, haki and the way of the sword was far stronger than before. All of them had reached a certain peak.

Before he wasn't qualified, he didn't have the strength to stand up to a Yonko.

But now he was! He was now qualified to battle a Yonko!

A flame burned in his eyes as he watched Kaido.

Vrooom!!

Soru!

He flashed infront of Kaido and slashed.

Kaido grinned and raised the bagua.

Their weapons collided. Haoshoku haki exploded from their bodies.

The sky turned dark as clouds churned above. Winds raged and Lightning flashed as they collided.

The ones watching from the distance were shocked.

Haoshoku haki!

Haki of the king's!

Who is this marine?!

However he had perfect control over his body. Whenever he was overpowered Leo would disperse the force and use it to get past Kaido's weapon.

Before their battle started the island was full of large and small trees and vegetation. But now the ground was razed and overturned.

A couple of small mountains had holes in them, it looked like they could crumble at any moment.

Sword rays filled the sky as Leo rushed at Kaido.

Merciful Rain!

Like a heavy downpour countless sword rays fell down on Kaido.

Armed!

Busoshoku haki climbed onto Kaido's body and his weapon.

Thunder Bagua!

The air shook and created bursts of popping sounds as the bagua moved through the air.

The countless sword rays paused for a moment before bursting. However several of them shot past the bagua and crashed into Kaido's body.

Apart from the sound of metals colliding nothing else happened.

He deserves the name of the strongest creature in the world.

Leo thought to himself. Leo's sword intent was extremely refined, and he had compressed the air to it's limits when he used those sword rays.

Any other person would have been seriously wounded if they took that attack directly, however Kaido was fine even after taking several of them head on.

Boom!

Kaido slammed the bagua on the ground. The ground trembled for a moment before it was overturned.

He grabbed a large piece and threw it at Leo.

Slash!

Leo slashed through the large rock. Just right behind it was Kaido with his bagua poised for an attack.

Boom!!

The ground caved in when their weapons met again.

Leo slid his sword through the bagua's body and slashed at Kaido's arm.

However it only left a white mark.

Kaido changed the direction of the bagua.

Leo took a step forward and went past Kaido's arms. He was now several inches away from his c.h.e.s.t.

Merciful Rain, Revised!!

The sword rays hanging over the sky merged with Leo's sword. A beautiful blue sword ray condensed on the edge of his sword as he swung down.

Kaido's c.h.e.s.t was clad in haki when his sword fell.

Sparks flared as his sword struck Kaido's c.h.e.s.t.

Leo stomped on the the air and exerted more strength on his sword. The pressure beneath his feet caused the air and the ground to crack, it spread out like a spider web.

Spurt!

A long gash appeared on Kaido's body as he staggered back. Blood seeped out.

Three hours into battle, Kaido was injured.