In Sukuna's "vision," the world seemed stripped of its appearances, transformed into the most basic energy flows and structural information.
The Special Grade Cursed Spirit's seemingly chaotic and ferocious attacks—the flow trajectories of its internal Cursed Energy, the condensation points of its power, even the contraction and relaxation of every arm's muscle fibers—were presented clearly before his eyes like an unfolded blueprint.
Analysis... complete.
Almost at the instant Kamiutsushi was activated, Sukuna had already completely seen through all the secrets of this wave of attacks.
"Boring tricks." He commented indifferently.
Swish... Swish... Swish...
Dozens, no, hundreds of translucent invisible hands composed of pure Cursed Energy and shadows erupted frantically from the space around Sukuna's body in an instant. Their numbers were so great they almost formed a writhing, shifting domain of shadows surrounding him.
And this wasn't even the most terrifying part.
These newly appeared hands actually imitated that Special Grade Cursed Spirit in their form and attack patterns.
The tips of some hands became as sharp as spears, accurately meeting the arm-tentacles the Cursed Spirit thrust forward.
Some became as broad as shields, even faintly showing defensive textures similar to the Cursed Spirit's flesh to block heavy hammer-like strikes.
Others acted like flexible whips, entangling and strangling the tentacles trying to attack from the flanks.
Sukuna wasn't just using the Unseen Hand for defense. He was utilizing the analytical capability of Kamiutsushi to mimic and optimize the Special Grade Cursed Spirit's attack patterns in real-time, then executing them with his own higher-quality, more precisely controlled invisible hands.
Kacha!
Boom...
Sounds of collisions, tearing, and explosions instantly rang out in unison.
However, this was not a confrontation between equals, but a one-sided crushing.
The Special Grade Cursed Spirit's seemingly violent attacks appeared so clumsy and fragile before Sukuna's invisible hands, which mimicked its own patterns but was optimized by Kamiutsushi and driven by purer Cursed Energy.
The Cursed Spirit's arm-tentacles were easily severed and pierced by the same-shaped but sharper hands.
Its flesh-hammer attacks were perfectly blocked by more solid invisible shields, and the counter-force caused its own flesh to burst apart.
The tentacles it tried to entwine were counter-entwined and crushed by more flexible and powerful invisible whips.
It was like a clumsy imitator meeting the true master who possessed all its skills and had brought them to their peak.
"Roar!!!"
The Special Grade Cursed Spirit let out a roar of pain and rage, its massive flesh-mountain body trembling violently from the thwarted attacks and partial destruction. It couldn't understand why this tiny being could use power similar to its own, yet even stronger.
"Is that... all?" Sukuna's tone carried a hint of disappointment, like an athlete who had just warmed up only to find their opponent already defeated.
"It seems that merely absorbing my finger's power without the corresponding capacity only turns one into a slightly stronger beast."
He was no longer satisfied with defense and mimicry.
The light of Kamiutsushi flashed again. This time, his gaze pierced through the violent energy flows on the Cursed Spirit's surface, directly locking onto the deeper structures within—the core nodes that maintained its existence and circulated Cursed Energy, and... that finger buried deep within the core of the flesh mountain, continuously emitting an alluring resonance.
"Game over." Sukuna pronounced softly.
In the next moment, the attack patterns of those hundreds of hands suddenly changed. They no longer mimicked the Cursed Spirit but transformed into the purest, most efficient killing tools.
Some hands, like the most precise scalpels, bypassed all of the Cursed Spirit's defenses and counters, piercing directly into the interior of the flesh mountain at incredible angles and speeds, accurately seizing the Cursed Energy nodes that maintained its existence.
Bang! Bang! Bang! Bang...
A series of muffled explosions came from within the Cursed Spirit.
Its massive flesh-mountain body, as if its skeleton had been removed, instantly went limp and collapsed for the most part. Its wails became shrill and desperate.
"ROOAAARRR!!!"
It wasn't an echo, but a shriller, more frenzied roar—one that seemed to condense all remaining will and Cursed Energy—exploding from the center of the Cursed Energy residue that was about to vanish. It wasn't a sound, but a shriek that acted directly upon the soul.
Hum—
Space let out an overburdened groan. With the Cursed Spirit as the origin, a thick, foul dark red Cursed Energy, filled with endless pain and a desire to gnaw, erupted like a bursting dam or frantically multiplying cancer cells, instantly expanding and eroding reality.
"What?!" Mai's pupils shrank.
She struggled to raise her pistol, only to find her body firmly pinned in place by an invisible force of "rules," unable to even twitch a finger.
"A Domain... it's a Domain Expansion!" Kasumi's voice was filled with extreme shock.
She had only heard of them in textbooks and through the brief mentions of seniors—what a terrifying and despair-inducing sight a Domain expanded by a Special Grade Cursed Spirit or a Special Grade Sorcerer was.
It was the act of forcibly injecting the ultimate mystery of one's own technique into reality in the form of "rules," creating a space of absolute dominance.
Dark red light swallowed their vision. The dilapidated scene of the workshop became like an oil painting soaked in water—distorted, dissolving, and vanishing.
In its place was a nightmare world composed entirely of writhing flesh, pale white teeth, and viscous saliva.
The sky was a dark red flesh membrane constantly dripping with foul-smelling slime, while the ground was a soft, undulating substance resembling the coating of a tongue, crisscrossed with blood-vessel-like patterns.
Countless massive, twisted, bloodshot teeth grew jaggedly from the "sky" and "ground" like stalactites and stalagmites, forming a suffocating, horrific space that felt like the interior of a giant beast's mouth.
The air was as thick as a physical substance, filled with a nauseatingly sweet, metallic, and rotten scent.
Even more terrifying was an absolute, soul-freezing "rule" that permeated every inch of the space—gnawing, digestion, annihilation.
Domain Expansion: Infinite Maws Hell.