Reincarnation as Lower Rank Five in Demon Slayer

Chapter 153 Battle between practitioners of the Moon Breathing Technique

In the infinite city of another dimension, two figures wielding swords fought, sparks flying as their blades clashed.

The surrounding buildings, including rooms, were neatly and casually cleaved apart by the collision of the blades.

The two demons fighting were vastly different in strength, so much so that one demon, wielding a knife with one hand, was overwhelming the other, a white-haired little demon, as he was fighting with all his might.

The two demons they were fighting were Li Lei and Upper Moon One Kokushibo. For the past few months, Li Lei had spent most of his time in the Infinity Castle, under Kokushibo's tutelage, except for a few times when he left the castle to visit Moka and Chigusa and Chihiro at Mount Natagumo.

Li Lei's hard work over the past few months has paid off well. He not only learned Kokushibo's Moon Breathing technique, but also learned many other Moon Breathing moves.

What surprised Li Lei the most was that he could now unleash sword energy with his knife, although the attack power was weak, leaving only shallow sword marks on the wooden wall a few meters away.

But this undoubtedly shows that he has mastered Kokushibo's Moon Breathing Technique to the strongest level besides Kokushibo's.

Apart from Kokushibo, Li Lei dares to guarantee that no one in this world has a better Moon Breathing technique than him.

Seeing Li Lei unleash his sword energy, even Kokushibo couldn't help but show a surprised expression. Li Lei's talent was truly exceptional, far surpassing his talent when he was still human.

After Li Lei was able to unleash sword energy, Kokushibo began to practice sparring with him.

The crooked houses in the Infinite City are the result of Li Lei and Kokushibo's sparring match at this time.

The sparring continued. Li Lei dodged Kokushibo's moon blade strike by leaping left and right, and immediately used Moon Breathing to counterattack when the opportunity arose.

Li Lei gripped his sword with both hands and delivered a swift, straight slash at Kokushibo, instantly generating a blade of energy that struck Kokushibo.

"Good timing, your sword energy has become even stronger."

Kokushibo casually brushed away the sword energy that was slashing at him, praised Li Lei, then gripped his sword with one hand and swung it horizontally, sending several crescent blades towards Li Lei.

The incoming moon blades were incredibly fast, and even though Li Lei was prepared, he was still injured while dodging them. The moon blades that missed Li Lei, however, still wielded considerable power, shredding the houses behind him to pieces.

"Lord Kokushibo, you flatter me. Compared to you, my strength is still far inferior."

Li Lei replied modestly that although he could briefly exchange blows with Kokushibo, it was only because Kokushibo held back.

Kokushibo and he never used the Moon Breathing sword techniques during their practice sessions; they only used ordinary basic attacks. Even so, he still found it very difficult to practice.

This made Li Lei deeply realize Kokushibo's power; he truly deserved to be called the strongest demon besides Muzan.

Having fought against Upper Moon Two Doma, he could sense that Doma and Kokushibo were not on the same level.

Suddenly, a crescent blade slid past Li Lei's ear, startling him.

"He didn't even realize when the attack was launched."

"Tired—you were distracted. Being distracted in battle is disrespectful to your opponent and shows arrogance towards your own strength. If it were a life-or-death battle between you and me, your head would have already been chopped off by now."

Kokushibo's expression was stern, and his tone of voice became very serious, revealing a hint of authority.

Although the brat in front of him was extremely annoying, he had managed to learn his Moon Breathing Technique. This was unprecedented; ever since Li Lei learned the Moon Breathing Technique, Kokushibo had regarded him as his successor.

Li Lei was unaware that Hei Simu's attitude towards him had changed.

Li Lei calmed himself down, still vividly remembering the attack he had just received.

"Lord Kokushibo, I have learned a lot about what happened earlier."

As soon as he finished speaking, Li Lei's aura instantly became heavy and unified, and his gaze towards Heishi Mu became extremely serious, his fighting spirit soaring at this moment.

Li Lei was prepared to use all the power that his body could currently display to show his respect for Kokushibo.

"Blood Demon Art - Crimson Armor." Instantly, Li Lei's body was wrapped in a armor made of crimson threads. The armor, composed of Li Lei's strongest threads, was incredibly tough and difficult for even him to destroy.

"Blood Demon Art - Weight Stacking." Li Lei then quietly activated a Blood Demon Art he had obtained that stacked weight. Meanwhile, the katana made of his own flesh and blood grew exponentially under Li Lei's control.

"My lord, please be careful, I'm about to go all out."

Li Lei said confidently, the full release of his power made him feel incredibly strong, and his confidence soared.

"Come on, tired? Let me see what you call giving it your all."

The surge in Li Lei's power did not put pressure on Hei Shimou; instead, it made him even more excited.

"Water Breathing Technique, First Form Modification - Water Blade: Water Flow Cross Sky-Piercing Slash".

Li Lei's long, thin, red flesh-and-blood samurai sword, now ten meters long, suddenly unleashed a cross-shaped slash.

The sword energy flew out from the blade first, followed by the blade, crossing and attacking the black shibo in front of them.

"Tired? That was a good move of yours. It's worth taking seriously."

Faced with the ten-meter-long sword aura and intersecting blades that had already reached him, Kokushibo calmly gripped his sword with both hands. A cold glint flashed in his eyes, and he immediately exerted force with both hands, swinging his sword in an instant. The afterimage of the sword swing still lingered on the spot.

Immediately following Heishibo's sudden swing of his blade, a huge crescent blade flew out in front of him, attacking Li Lei's sword move.

With a sharp crack, the giant moon blade collided with the illusory and real cross slash, unleashing a series of buzzing sounds.

Where the moon blade collides with the slash, whether it's a house or a staircase, everything turns into fragments.

Nakime, watching the battle from afar, felt her heart bleeding. Her Infinity Castle had only recently been repaired, and now, because of this white-haired brat favored by Muzan, she had to start repairs again.

"Damn Lower Moon One, it's all because of you that I have to work overtime again," Nakime kept grumbling. She was so angry that she cracked her biwa in her hand.