The two Demon Slayers instantly felt their hair stand on end, leaping back a step and drawing their nichirin blades with a whoosh!
They hadn't even noticed when or how this old man had appeared!
Moreover, the faint, extremely unsettling chill emanating from him… "Who are you?!"
The taller Slayer suppressed his pounding heart and demanded sharply.
The shorter Slayer reacted even faster, or rather, more directly.
He was already roaring and charging forward with his blade, "What are you spacing out for! This guy's a demon!!"
Before his words finished, he had already stepped forward.
His nichirin blade, whistling through the air, swung horizontally towards the old man's neck without hesitation!
However, the blade passed through without any resistance, as if cutting through air.
"Wh—…?! "
The shorter Slayer's pupils contracted as the old man's figure in front of him vanished like an illusion.
The next moment, he had already appeared on the Butterfly Mansion's wall not far away!
He was still in that pathetic state, clutching his head and trembling like a sieve, crying out:
"So scary… so scary… Why do you want to kill me… Don't kill me…"
So fast!
The backs of both Slayers were instantly drenched in cold sweat.
They hadn't seen the opponent's movement trajectory at all.
This was definitely not an ordinary demon!
Such speed… Just as the two were filled with doubt and their muscles were tensed to the extreme—
Whoosh!
An incomparably sharp whooshing sound erupted from the dense shadow of a large tree nearby.
A uniquely shaped, broad blade, crimson and gold, flashed out like lightning tearing through the night, striking with an incredibly tricky angle!
The blade was covered in a strange explosive energy, precisely grazing the neck of the old demon on the wall!
Swish!
The still-crying head instantly flew into the air!
At the same time, a tall, muscular figure with snow-white hair stepped out of the shadows.
He wore a flamboyant headdress, and vibrant red eye makeup was applied around his left eye. At this moment, he was pouting unhappily.
"Tsk, no way? Is that all there is to it?"
Uzui Tengen swung the unique crimson and gold twin blades in his hands, complaining:
"I waited here so flamboyantly for so long, what a waste of my perfect infiltration…"
The two Slayers were startled at first, then, seeing who it was, they immediately let out a sigh of relief.
They quickly sheathed their blades and stood at attention, bowing, their voices filled with both surprise and lingering fear:
"Sound Hashira! How—how are you here?"
Uzui Tengen, carrying his massive twin blades, gave them a disdainful look: "What's with all the fuss, you're not flamboyant at all…"
Before he finished his scolding, his pupils suddenly constricted!
Almost simultaneously, the two Slayers also saw a horrifying sight and shrieked a warning: "Sound Hashira! Look out behind you!!"
Uzui Tengen whirled around.
His usually somewhat flippant gaze instantly became incredibly sharp.
His pupils widened slightly, reflecting the bizarre scene behind him that was rapidly transforming and emitting an even stronger and more malevolent aura.
On the wall behind Uzui Tengen.
The headless demon body and the head that had rolled to the ground didn't turn to ash like ordinary demons. Instead, they began to squirm wildly!
Flesh proliferated and swelled as if boiling.
In a matter of breaths, two brand new, complete entities grew in their place!
Two bizarre clones, completely different in appearance, demeanor, and weapons, surrounded Uzui Tengen, exuding intense malice and powerful pressure!
Uzui Tengen's sharp gaze swept over the two distinctly different demons that surrounded him.
One had deep red sclera and irises in both eyes, and wore a crimson kimono like raging waves.
He wore wooden clogs, and in his hand, a tin staff with a golden glow at its tip emanated a heart-pounding power of thunder.
At this moment, he was full of rage, as if he wanted to tear everything in front of him to shreds.
The other had eerie green eyes, a bare, muscular upper body, with two black straps with white stripes draped over his torso, and a red sash tied around his waist.
He held a maple leaf-shaped fan casually in his hand, a playful, laughing expression on his face, but his eyes were equally cold.
On the irises of both the left and right eyes of the two demons, chilling characters were clearly etched—
"Four" and "Upper Moon"!
"Upper Moon Four… is it?"
Uzui Tengen licked his lips. Far from being afraid, his eyes burst with astonishing fighting spirit and excitement.
"I didn't expect to catch such a big fish right after starting my stakeout. Looks like I'll have a flamboyant fight today!"
"Arrogant human! Die!"
Sekido seemed to be thoroughly enraged by Uzui Tengen's attitude. He roared, and the golden tin staff in his hand slammed to the ground.
Boom-crack—
An incomparably violent, thick blue-red lightning bolt, like a giant python, erupted in response, tearing through the earth.
The lightning, carrying a destructive aura, charged directly towards Uzui Tengen!
Wherever it passed, the ground was scorched and cracked, its momentum terrifying!
"Good timing!"
Uzui Tengen showed no fear. He crossed his twin blades in front of him, took a deep breath, and his chest heaved like bellows.
"Sound Breathing, Second Form: Sound Ring!"
He swung his twin blades in a high-speed rotation, too fast for the naked eye to follow.
The specially crafted blades and the explosives embedded in their bodies ignited and detonated the moment they rapidly rubbed against the air.
Boom, boom, boom!
Rings of incredibly violent, visible explosive shockwaves, like expanding sound barriers, precisely collided with the furiously attacking blue-red lightning python.
Deafening explosions and the roar of thunder instantly intertwined, as flames and golden electric snakes wildly raged and annihilated each other.
The dazzling light illuminated the entire perimeter of the Butterfly Mansion as if it were daytime!
The violent shockwaves lifted all the dust and rubble from the ground.
However, almost at the instant Uzui Tengen was fully countering Sekido's lightning, and his body stiffened slightly from the explosive recoil—
"Hehe ~ I got him!"
A demon, who had been lying in wait, chuckled and fiercely waved the maple leaf fan in his hand.
"Blood Demon Art: Violent Pressure Sonic Wave!"
Whoosh—
A terrifying, visible wind pressure, compressed to the extreme, condensed.
The wind pressure, like an invisible giant hammer, struck Uzui Tengen from the side with an ear-piercing shriek.
This strike was timed perfectly, precisely at the critical moment when his old strength was spent and new strength had yet to form!
Damn it!
Uzui Tengen's heart suddenly tightened.
He forcibly twisted his body, barely managing to block the attack with a nichirin blade at his side.
Boom!!!
A dull, thundering boom exploded.
The terrifying wind pressure heavily struck the blade.
Although Uzui Tengen blocked the direct cutting force with his astonishing reactions and strength, the immense impact contained within could not be completely neutralized.
He grunted, as if struck by a high-speed train, and was directly propelled off the ground, flying backward.
He crashed heavily into the stone wall of the Butterfly Mansion in the distance!
Rumble!
The wall shattered into pieces, and smoke and dust billowed.
"Hehe, isn't this fun, Sekido?"
The demon, smugly waving his fan, grinned playfully.
"It's not fun at all!"
Sekido roared, and the tin staff in his hand once again gathered even more dazzling, violent lightning, aiming it at Uzui Tengen, who was temporarily unable to get up in the dust.
"I only feel anger, including being mixed up with a guy like you, demon!"
The demon still had a smiling face: "Is that so? It seems it's really good that we separated ~"
The blue-red lightning was about to erupt again!
Just at this critical moment—
A gentle yet chilling female voice, like a poisonous flower blooming quietly in the deep night, softly brushed over the battlefield:
"Ara ara ~ Two against one, isn't that a bit… too shameless?"