A clearing in the woods.
The battle doll modeled after Yoriichi Tsugikuni the Sengoku period once again stood on the ground.
Crimson hair, a thin red top, and six arms hanging silently came into view.
As Kotetsu shoved the wooden knife into the puppet's hand, he said with schadenfreude:
"It's all up to you now! Don't let me down!"
He didn't believe for a second the Teiichi something was stronger than a pillar.
You lied to him yesterday, and you want to lie to him again today?
He had already heard that the strongest member of the Demon Slayer Corps was the Pillar, and there was no one stronger than the Pillar!
As for Yoriichi Type Zero, as long as it doesn't hit a pillar, there's absolutely no problem!
Kotetsu skillfully inserted the key into the back of Yoriichi Type Zero's neck and twisted it a few times.
Then, a soft clicking sound of gears turning came from inside Yoriichi Zero Snack.
The Yoriichi Type Zero, which had been standing still, began to move little by little.
Whoosh--!
His figure crouched, six arms outstretched, holding wooden knives in his hands, like a spider.
Yoriichi Type Zero -0 looked ready for battle.
"Come on! Don't let me underestimate you!" Kotetsu shouted from a distance, waving and looking smug.
Teiichi chuckled softly and turned his gaze to Yoriichi Type Zero.
There are two things about Yoriichi Type Zero Teiichi I'm quite curious about.
The first point is...
Bang!
The wooden swords clashed, producing a crisp thud.
Yoriichi Type Zero launched the first attack on Teiichi.
Teiichi's gaze, passing through the joined wooden swords, quietly landed on Yoriichi Type Zero's face, which was half-ruined.
The first thing that piqued my curiosity was Yoriichi Type Zero swordsmanship, which was said to be able to replicate the strength of Yoriichi Tsugikuni.
Although I had already experienced the sword form of Sun Breathing from Tanjiro.
However, the same type of sword can have drastically different effects depending on who wields it.
At least, from that last strike, Teiichi could sense the difference between the battle puppet and Tanjiro from before.
Swish--!
The wooden sword swept through the air at an extremely fast speed, creating a slight whistling sound.
Teiichi's pupils quietly reflected the other wooden swords that were slashing down like raindrops.
Bang! Bang! Bang! Bang!...
The wooden knives clashed repeatedly, producing a series of crisp, ringing sounds.
The two of them did not move an inch, standing quietly in place like two majestic mountain peaks.
The wooden swords were constantly being swung and clashed in the hands of the two men...
It was moving very fast; at least, Kotetsu's eyes couldn't see it very clearly.
Kotetsu could only see the two men standing in place, constantly swinging their swords, and the wooden swords clashing repeatedly.
As for the trajectory of the knife, he couldn't see it at all.
No, it wasn't just the trajectory of the knife; Kotetsu couldn't even clearly see the trajectory of their arms swinging!
Bang!
Suddenly, a loud bang, different from the previous ones, rang out.
The seven wooden swords clashed together!
The six swords were crossed not far in front of Yoriichi Type Zero, firmly blocking the wooden sword that was slashing towards him.
Teiichi gazed quietly at Yoriichi Type Zero.
From the battle just now, it is indeed possible to see the shape of the sword used by Tanjiro in the Sun Breathing technique from the sword shape used by Yoriichi Type Zero.
However, they are not exactly the same; there are still some differences.
These differences won't be huge, but they won't be insignificant either.
The differences may be due to different users.
It's also possible that because it's difficult to perfectly replicate the sword shape in teaching, differences naturally arose over hundreds of years.
However, the general shape of the sword will not change.
Squeak--! Squeak--!
A series of teeth-grinding sounds rang out as six wooden swords slowly raised forward, pressing against Teiichi's wooden sword.
In order to fulfill the promise he made to Mr. Tetsumoto Homura, and also out of concern that Yoriichi Type Zero might be damaged in battle.
Therefore, Teiichi strictly controlled the power and speed he exerted to the level exhibited by Yoriichi Type Zero.
However, in a battle against Yoriichi Type Zero, having equal strength and speed would mean being at a disadvantage.
The six arms on Yoriichi Type Zero weren't added for nothing.
Although on the surface, all six hands appeared to be wielding wooden swords at the same speed.
In reality, the effect of waving all six hands together is far better than that of waving only two hands.
After raising the wooden sword slightly away from himself, Yoriichi Type Zero quickly separated one of the swords from it.
Then the knife struck Teiichi like a bolt of lightning.
Bang!
The sound of wooden swords clashing rang out again, followed by a series of rapid, continuous impacts.
The speed and power in front of him were Yoriichi Type Zero.
Teiichi eyebrow slightly, then increased the strength and speed in his hands once again.
The two figures were no longer standing still, but were running quickly across the clearing in the woods.
Bang! Bang! Bang! Bang!...
The sound of wooden swords clashing echoed continuously in the open space, like rapid drumbeats.
The two increased their speed, and the thuds of each collision grew louder.
Time passed by, bit by bit.
Finally, at a certain moment, a heavy 'bang' rang out.
Teiichi held a wooden sword in front of him.
Feeling the speed and power of Yoriichi Type Zero no longer increasing.
Teiichi had a sudden realization.
Yoriichi Type Zero likely relied on the initial switch rotation to sustain its initial operation.
Subsequently, during the battle, the collisions caused the gears inside his body to operate continuously, thereby providing the power for Yoriichi Type Zero.
This solves the problem of Kotetsu's power source that Teiichi asked earlier.
This is also why Yoriichi Type Zero can continuously increase in speed and power.
It's easy to understand why there are no further upgrades now; the parts have reached their limits and can no longer be improved.
Otherwise, if it could be improved indefinitely, Teiichi could continue feeding Yoriichi Type Zero here, and he could even solo the Infinity Castle.
Of course, even if he can't improve any further, he's already very strong.
Teiichi felt that he was no weaker than the pillars of previous years.
It's already outrageous enough that a battle puppet could reach the level of a Pillar, but that's not the most outrageous part of him.
His most outrageous thing is...
This thing can understand commands, automatically locate enemies, and adapt to changing situations!
These things are truly outrageous, and also the second point of Teiichi's curiosity.
Although Teiichi felt that the demon's Blood Demon Art and his own Wind Field were quite outrageous.
At least there's a living being driving these things to function.
What drives this doll to make these reactions?
This is practically equivalent to having an AI controlling it, isn't it?