Demon Slayer: Become the villain Boss Muzan

The train was full of Nezuko, and Zenitsu was fearless and even held his head high.

As soon as the two opened the door, the hot air and scorching flames hit their faces.

The huge wind and waves blew up their hair and clothes.

The two terrifying auras made Zenitsu subconsciously protect Nezuko behind him.

So strong!

"Nezuko-chan, hide behind me, I will protect you!"

Zenitsu held Nezuko's hand and held the handle of the Nichirin Sword with his other hand.

After the train gradually stopped, Zenitsu, like an artificial intelligence, withdrew from the dormant combat mode and entered the cowardly mode.

But after all, he has been a ghost hunter for so long, and the most important thing is that he is in front of Nezuko!

How can he be timid!

Then he saw the gradually scattered flesh and blood, and the train compartment slowly recovered. Zenitsu was relieved.

But then he heard the fierce fighting outside, so he hurried out.

There is no fear in front of Nezuko!

Zenitsu looked at the two people fighting.

Rengoku Kyojuro and the unknown evil ghost.

The powerful flames seemed to illuminate the night sky, but the other side of the sky was mixed with light blue because of the wind and waves caused by the momentum and movements of the evil ghost.

The two were like giants at this moment, each occupying half of the sky.

The crackling and burning sounds of the flames were very loud, and the battle between Rengoku Kyojuro and the evil ghost was very noisy.

The two people stepped on the ground with great force, and even dents appeared on the ground. The blades and fists attacked each other with the sound of breaking through the air.

The wind from their fight seemed to make people feel a little painful when it blew on their faces.

At this moment, Zenitsu seemed to understand what it meant to be strong and what it meant to be a pillar.

Zenitsu ran to Tanjiro who was worried and Inosuke who had gradually calmed down with Nezuko behind him, and shouted:

"Tanjiro, what happened?"

Tanjiro and Inosuke never took their eyes off the two people who were fighting.

"Mr. Rengoku is fighting an upper-rank demon named Akaza."

"Upper-rank demon?!"

Zenitsu's tone was slightly shocked:

"Is this an upper-rank demon... so strong!"

Inosuke leaned forward, staring at the two people, sweat on his face, and slightly tightened his hand holding the Nichirin sword.

There was no flaw, no way to intervene, and the movement was so fast that he couldn't keep up at all.

The area around the two people was like a different dimension. If he fell into it, he knew that he would die!

Seeing the two people's movements almost leaving afterimages, and countless movements and countless rounds every second, Inosuke knew very well that even if he wanted to help, he could only make things worse.

Even if he used a gun, he couldn't aim in such a fast-changing battle.

So he didn't dare to move at all.

Tanjiro tried his best to maintain his water breathing and heal his wounds. He leaned his head forward and watched the two people fighting closely.

He could smell how powerful the opponent Mr. Purgatory was facing, so he was extremely worried. The gap between him and the opponent was like a chasm, which made Tanjiro's heart tighten:

"Mr. Purgatory..."

The fierce battle between the two and their worries almost made them forget the guy playing music not far away.

Akaza raised his arm to block Rengoku Kyojuro's vertical blade and gritted his teeth:

"Become a demon! Kyojuro!"

"If you don't become a demon, you will have a limit!"

Rengoku Kyojuro's eyes widened because he tried his best, and the muscles in his arms bulged. He let out a loud roar, opened his mouth to inhale air, and the Nichirin sword in his hand continued to penetrate Akaza's arm.

Akaza used his back foot to jump back, showing an excited smile:

"Become a demon! If we become demons, we can fight each other all the time! We can always improve each other!"

As he said, he rushed forward again without stopping, swinging his fist towards Rengoku Kyojuro's left forehead.

At this position, as long as Rengoku Kyojuro dodges, he can dodge it by slightly turning his head.

As he expected, Kyojuro turned his head to dodge, and at the same time raised the Nichirin sword to block his other fist that came straight at him.

Akaza's fist hit the Nichirin Sword, making a clanging metallic sound.

Rengoku Kyojuro made a sound in his throat, and it was obvious that he was struggling to block it with all his strength.

But he also took this opportunity to retreat half a step, move sideways, hold the Nichirin Sword horizontally with both hands, and rush forward quickly, with the haori behind him flying horizontally.

Turning around and slashing horizontally, a fiery red flame appeared along with the arc drawn by the Sun Wheel Sword in the air, and the flame and the Sun Wheel Sword slashed towards Akaza's neck together——

Breath of Flame·One Type·Shiranui!

Akaza blocked with his arms in front of him, and the Sun Wheel Sword slashed off his hands smoothly. With a sticky sound of water, a pool of blood splashed out.

But in an instant, Akaza's hands grew back again.

And Rengoku Kyojuro's breathing has gradually become heavy.

This high-intensity battle consumes too much energy!

But Akaza was obviously excited. Although he held back on Rengoku Kyojuro, his strength and speed were undoubtedly getting faster and faster, which put more and more pressure on Rengoku Kyojuro, who was already running out of physical strength.

However, Akaza, who was gradually getting excited, didn't care about his own state at all. He chopped his arms and chest casually, and losing his hands and feet made him more excited.

Akaza, with a smile, punched the edge of Rengoku Kyojuro's body. The punch was swift, and Rengoku Kyojuro dodged quickly. The blade kept colliding with the enemy's attack, and the sound of ding-dong was extremely dense.

Rengoku Kyojuro gritted his teeth.

"You haven't reached the peak of the flesh at all!"

Akaza kept punching and shouting, putting pressure on Rengoku Kyojuro:

"It's a pity that I have to kill you here now!"

He really hopes that Rengoku Kyojuro will become a ghost.

Akaza is undoubtedly pursuing powerful strength, and his improvement requires constant training and fighting.

But he can't even touch the strength of the brothers Kokushibo and Yoriichi, so there's no point in beating them.

And Douma?

Go to hell!

The others are too weak.

And Rengoku Kyojuro is a human being, and he is obviously not at his peak now.

He has none of the transparent world, stripes, and red swords that the boss mentioned, but he can achieve this kind of combat power. You can imagine how powerful Rengoku Kyojuro would be if he became a demon.

A rival and friend of equal strength forever!

And he also admires Rengoku Kyojuro's will and spirit.

So become a demon!

In a few seconds, Rengoku Kyojuro has blocked hundreds of attacks from Akaza, but finally, Akaza punched him in the abdomen.

A muffled sound——

Rengoku Kyojuro coughed up a mouthful of saliva and hurriedly took a half step back, attacking Akaza before he could step forward.

Rengoku Kyojuro adjusted his posture and stepped forward suddenly, and the Sun Blade drew a powerful arc from bottom to top——

Breathing of Flame·Second Form·Upper Flame Ascension!

Akaza hurriedly crossed his arms and blocked in front of him, retreated half a step, and the Sun Blade brought up a flame like the edge of the sun from bottom to top, cutting across Akaza's skin.

Akaza bent his knees, jumped back and backed away, taking advantage of the situation to punch.

Even though Rengoku Kyojuro's physical strength was getting less and less at this time, he was still able to use his full strength because he was not injured. The Sun Blade kept changing, following his attacks and constantly resisting.