46. Wind Release: Rasenshuriken.

"Demon Slayer Corps, Uzui Tengen, please show me your ninjutsu, Mr. Shirakawa."

Shirakawa was slightly startled when he heard this. He looked at Uzui Tengen and suddenly remembered that in the original work, this man was from a ninja family before joining the Demon Slayer Corps. Presumably, seeing the ninjutsu performed by Mitsuri Kanroji and Asuna had refreshed his concept of ninjutsu.

As a teacher, Shirakawa was naturally happy to satisfy others' desire for discovery.

"Is there a training ground here?" Shirakawa asked, looking at Ubuyashiki Tōya.

The latter nodded. "It's right behind."

He then led Shirakawa to the training ground of the Demon Slayer Headquarters. The others followed curiously, especially the Wind Hashira and others. In less than a week, they had seen the strength of Kanroji and Miss Yuki increase to the point where they beheaded an Upper Moon. This made them eager to know the strength of Mr. Shirakawa himself. Mrs. Yuuki also had the same idea.

The training ground was large and filled with various wooden stakes and other training equipment.

"Is it okay to fight here?" Uzui Tengen asked.

Shirakawa nodded. "This is okay. Watch me closely."

He then glanced at Asuna Yuuki and Mitsuri Kanroji. The two of them reacted immediately and became highly focused.

Uzui Tengen took a deep breath and said in a deep voice, "Mr. Shirakawa, our ninjas work together to assassinate the target through various means. I also have three of my subordinates here, be careful..."

As soon as he finished speaking, Uzui Tengen suddenly disappeared from the spot. The next moment, he appeared behind Shirakawa and slashed his Nichirin sword down hard. Amidst everyone's exclamations, Shirakawa seemed to show no movement and got cut off at the waist by the Nichirin Sword.

"Hmm...is it a shadow?"

There was no physical feeling from his hand, which made Uzui Tengen slightly startled. Kanroji had shown him this move before. He remembered it seemed to be called a clone technique—a shadow used to confuse people.

"So, where is the main body?"

Just as he glanced left and right, looking for Shirakawa's true body, Shirakawa, whom he identified as a shadow, slowly spoke.

"What are you looking for?"

Uzui Tengen was suddenly startled. Turning his head, he met Shirakawa's strange eyes, which were like spinning windmills. Uzui Tengen suddenly stepped back and stared at Shirakawa in surprise.

"Not a phantom? Then why didn't I hit him just now?"

"And, what kind of eyes are those..."

Shirakawa, who had just used Kamui, nodded with satisfaction. At this time, a graceful figure suddenly rushed out from behind a nearby wooden pile and threw more than ten explosive bombs toward Shirakawa.

Bang! Bang! Bang! Bang!

The successive explosions raised a cloud of dust, completely covering Shirakawa's figure.

"Where is he?"

As the smoke and dust dispersed, Shirakawa's figure disappeared. Suma looked for Shirakawa's figure, and the next moment, a voice came from behind.

"Water Release: Water Prison Technique."

A ball of water condensed out of thin air, trapping Suma in it.

"Suma!"

An exclamation came from Shirakawa's left side, but bursts of piercing sounds were heard from the right. It was like their tactics were in sync with one another.

"It's a kunai..."

Shirakawa turned around and saw a female ninja named Hinatsuru holding a kunai launcher and shooting dozens of kunai at him.

"Earth Release: Earth-Style Wall."

Shirakawa quickly formed a seal, and the ground beneath his feet formed a stone slab that stood up, blocking all the kunai. There was another sound of piercing the air behind him, and Uzui Tengen slashed at him again.

"Wind Release: Gale Palm."

Shirakawa clapped his hands, and a strong wind directly knocked Uzui Tengen away several meters. As his body flew backward, Uzui Tengen tried his best to control his body and threw several shurikens at Shirakawa.

At the same time, Makio and Hinatsuru, who had hidden until the end, threw out several shurikens, blocking Shirakawa's retreat. Immediately, they all rushed towards Shirakawa.

"Shuriken..."

Shirakawa glanced at the shurikens flying from all directions and raised the corners of his mouth slightly. He had to acknowledge that Uzui Tengen and the others were quite well equipped. He wanted to ask where their supplier was.

He had taught students so many lessons but had not yet taught them how to throw kunai and shuriken. Judging from the fighting style of Uzui Tengen and others, it could be regarded as very traditional ninja technique. Stealth attack, flexibly block the enemy, and launch a fatal blow. In comparison, the ninjas from the Naruto world were very simple and crude. Facing the enemy head-on, throwing mountains, and tsunamis at each other was the norm in later seasons.

Since Uzui Tengen wanted to learn his ninjutsu, he let him experience it. Shuriken from all directions struck Shirakawa. His body exploded into a cloud of smoke.

"Disappeared... was it the substitution technique that Mitsuri mentioned?"

Makio and the two women searched for signs of Shirakawa.

"Up there."

After landing, Uzui Tengen shouted in a deep voice as he stabilized his body.

"As for shurikens, I also have them!"

Shirakawa's voice reached their ears. They looked up into the air, their expressions suddenly stunned.

"What is that... shuriken?"

They looked at the huge shuriken formed by the visible wind in Shirakawa's hand. The shuriken spun violently and made a harsh roar.

"Wind Release: Rasenshuriken."

Shirakawa threw the shuriken out of his hand. The Rasenshuriken hit the center of the training ground.

"Missed?"

The people watching were slightly stunned. However, the next moment, a vortex-like hurricane swept up from the center of the training ground.

Boom.

Shirakawa controlled the amount of power, but this was still not something Uzui Tengen and others could stop. Even in the most fringe area, violent explosions and whirlwinds directly blew Uzui Tengen and others away.

As the whirlwind dissipated, a huge pothole was revealed in the middle of the training ground. The Wind Hashira and the others who were watching were stunned by all this.

Shirakawa glanced at Uzui Tengen and others. Their injuries were serious, but with their physical fitness, they would be fine after a few days.

"How did it look? Did you see the battle just now clearly?"

Shirakawa turned to look at Yuuki Asuna and Kanroji Mitsuri.

"Well, I saw it clearly..." The two people who were in a daze came to their senses and nodded excitedly. Witnessing Shirakawa-sensei's battles with their own eyes gave them a deeper understanding of the application and understanding of ninjutsu.

"Shirakawa-sensei, what level of ninjutsu was the last wind release just now?"

"S-level."

When the two women heard this, excitement suddenly appeared in their eyes. Yuuki Asuna felt that she must fight for the top spot in her grade this time. At this time, the Wind Hashira and others were listening to their conversation, and this was how they reacted.

Just now, they thought Shirakawa was having a back-and-forth fight with Uzui Tengen and thought that this teacher Shirakawa was average in strength. But that last move? They thought it was impossible for anyone present to take it.

"It turns out that it was just a teaching session just now..."

Uzui Tengen and the others climbed up with difficulty. Looking at the disgraceful marks of the training ground being ravaged, he coughed out a trace of blood.

"What terrifying power..."

If they were hit head-on, there was no doubt that they would be minced directly by that huge shuriken. He looked down at the shurikens scattered on the ground and smiled bitterly.

"It's the same shuriken, but the difference is huge."

Of course, he knew very well that the difference was not only the shuriken but also the ninjutsu system. Uzui Tengen looked at Shirakawa's back and made up his mind.

.....

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47. Poaching Shirakawa-sensei as a tutor.

48. The Ladies At Shirakawa's Door.

49. Mission Completed. 

50. It's Too Slow, I'll Do It Myself!

51. Shinra Tensei And Wood Release Technique: Nativity of a World of Trees.