This feeling… reminded him of his weakness when he was human.
Muzan suddenly froze, recalling the Nichirin swords that Yoriichi's puppet had plunged into his body earlier.
Was he poisoned?
Or was it a poison that could turn demons back into humans?
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In the blink of an eye, Muzan had exchanged several blows with Shimizu.
Himejima Kyoumei also seized the opportunity and joined the battle.
Further out, several Pillars, along with batches of Demon Slayer Corps members, were converging to surround the area.
Muzan's heart sank.
He was continuously weakening.
Muzan knew he couldn't continue like this, or he might really be finished here.
The Pillar before him was the strongest human Muzan had seen in a thousand years, second only to Tsugikuni Yoriichi. His strength and speed were not far from his own, enough to pose a threat to him in his weakened state.
If the remaining Pillars also had such strength, coupled with the unexpectedly strong Pillar before him, then things would be troublesome.
However, now that the Twelve Kizuki had been replenished, they should be able to eliminate the other Pillars.
And although this guy before him was strong, as long as he could delay for some time and decompose the toxins in his body, then it would be his turn to overwhelm the opponent!
Any existence that posed a threat to him deserved to die!
It would be best to cripple, or even nearly annihilate, the Demon Slayer Corps as he had done three hundred years ago.
"Nakime."
Muzan silently issued an order to Nakime remotely in his heart.
"Thrum~"
The sound of a smooth biwa rang out.
In an instant, within a kilometer radius of Muzan, a door appeared beneath everyone's feet, causing them to fall instantly.
In that instant, Shimizu seized the opportunity and threw more than a dozen space kunai made of scarlet crimson iron at Muzan.
Most of these kunai, which instantly turned red-hot after Shimizu threw them, were knocked down by Muzan, but two or three still pierced Muzan's body.
Muzan merely smiled contemptuously at Shimizu, as if mocking him.
In his opinion, Shimizu was simply venting his frustration after seeing him about to escape.
These kunai, empowered by solar energy, were indeed very fast and powerful. If some Lower Rank demons saw them, they might be instantly killed.
But for Muzan, it would only take a few more seconds to recover.
The next moment, the world spun.
Under Muzan's command, Shimizu was teleported to a location farthest away from Muzan.
In a lotus pond.
"Boom!"
A large splash of water erupted, but it was not caused by Shimizu.
His feet, coated in chakra, stood firmly on the surface of the water.
But around him were countless demons, with the characters for Lower Rank One and Lower Rank Two written in the eyes of the leaders.
The current Lower Rank One, Mukago, and Lower Rank Two, Kamanue.
These two were originally ranked fourth and sixth among the Lower Ranks, considered the weakest ones. It was only because so many died before them that it was their turn.
After the current Twelve Kizuki were reorganized, they, having risen in rank, also received some of Muzan's blood, strengthening their power.
Shimizu merely glanced coldly around, then swung his sword in all directions.
"Breath of Departure, Seventh Form, Mirror of Separation."
Sword energy flew out, spreading around like a circular mirror.
Immediately afterward, the mirror shattered, and all the demons present were shattered into countless fragments along with the mirror in this one strike, eventually turning into ashes and dissipating.
Including the two Lower Rank demons.
Even though these two Lower Rank demons had been strengthened, in Shimizu's eyes now, Lower Rank demons were not much different from ordinary demons, and could be instantly killed with one move.
Without a single mistake, one head, one launch, one content, one look!
Upper Ranks might be able to take a few moves, and among all the Upper Rank demons, perhaps only Upper Rank One, Kokushibo, was worth Shimizu's serious attention.
As for Muzan, he would have to go all out.
Looking at the lotus pond, which had turned into a pool of blood and was rapidly dissipating into ashes, Shimizu stretched out his left hand and pressed a button on the mechanical watch on his right hand.
Since mastering the method of creating summoning scrolls through the knowledge of sealing techniques from Konoha, Shimizu had gotten himself such a watch for each incarnation in every world, so he could summon puppets at any time.
A wisp of white smoke emerged, and an armor puppet made of bluish-white steel appeared.
This was a re-upgraded armor puppet, with an extremely lightweight overall design, covering only about half of the body.
Its function was not complicated, equivalent to a set of exoskeleton armor that could increase one's own strength, provide a certain degree of defense, and assist in attacking. Limited by materials, the overall rating was only A-.
Before perfect demonification, this armor could bring him nearly half an increase in strength, and had almost no negative impact on his own agility and speed.
But now, with his own physical fitness greatly strengthened, it might only bring Shimizu about a 10% bonus.
But it was better than nothing, and some of the functions on it were also very practical. It was just that the commotion was too great, so Shimizu did not directly use it before in order to ambush Muzan.
He stepped forward, a thought flashed through his mind, and he teleported out instantly.
Muzan had just created a huge ball of flesh, wanting to decompose the toxins in his body.
As a result, the next second, countless high-temperature plasma sword energies surged like a storm, cutting the flesh ball and his body into pieces.
"Uesugi Shimizu!"
Muzan, naked from the waist up, roared, releasing countless bone whips and tentacles from all over his body, attacking Shimizu.
He didn't know how Shimizu had appeared here, but he knew that the poison in his body had not been completely decomposed.
Now he could only spare a portion of his power to block and suppress these poisons, lest he really be turned back into a human.
Doing so would cause his power to continue to weaken, but it was better than turning back into a human and directly losing his power!
As long as he could kill this human, then it would still be in time!
Shimizu dodged Muzan's attacks leisurely. The armor on his body crackled, opening several openings and shooting out space kunai in all directions.
At the same time, streaks of white light lit up from the lines and patterns on the armor, scorching Muzan's skin.
Moreover, Muzan also had an aging toxin developed by Tamayo specifically targeting Muzan's cells, which could continuously weaken Muzan's vitality.
Every minute, the vitality Muzan lost was enough to age a normal person by fifty years.
This could continuously weaken Muzan's speed, strength, and regeneration ability.