The black blade descended.
It moved with a speed that defied the physical properties of the world. There was no whistle of clashing air, no warning vibration; the weapon moved so fast that the atmosphere failed to react until the strike had already passed. Space itself seemed to split open as the traitor lunged forward, the blade carving a silent, jagged line through reality aimed directly at Akira Sato's heart.
But before the edge could taste blood—Gojo Satoru moved.
"Infinity."
The world froze.
The black blade stopped precisely two inches from Akira's chest, trapped in the invisible, paradoxically endless ocean of space that surrounded Gojo. The traitor's weapon vibrated violently, emitting a high-pitched, metallic scream as it tried to push through the infinite distance separating it from its target. The sheer force of the collision didn't dissipate; it traveled downward, causing the stone floor beneath their feet to shatter into a spiderweb of deep trenches.
The traitor stared at the unmoving blade with a look of mild, academic curiosity. "So this is the famous barrier," it murmured, its crimson eyes reflecting the blue glow of Gojo's aura. "The technique that brings the concept of Achilles and the tortoise into the physical realm. How quaint."
Gojo didn't smile this time. His expression was cold, his features as sharp as the ice forming on the vault walls. "You've had your fun," Gojo said quietly, his voice vibrating with a power that made the air feel heavy. "Now you're done trespassing in my school."
The Cursed Energy around Gojo surged, turning the oxygen in the room into a static-charged mist. Megumi felt his lungs tighten, the pressure in the vault spiking so dramatically that it felt like being submerged at the bottom of the ocean.
"Sensei… are you—"
Gojo raised one hand, his fingers twisting into a complex sign. The air in front of his palm began to warp and spiral inward.
"Cursed Technique Lapse: Blue."
A violent, crushing gravitational pull erupted from Gojo's palm. The force was absolute. It dragged everything toward a single, invisible point in space. Broken stone, fragments of the shattered pillars, dust, and even the traitor's long, elegant body were pulled forward as if the vault itself had become a collapsing star.
The traitor's feet scraped across the floor, leaving deep grooves in the granite. For the first time since appearing, its calm mask broke. It frowned.
"So this era learned new tricks," the traitor noted, its voice strained as it fought against the implosion. "You've refined the manipulation of space beyond the limits of my time."
The gravitational force intensified. The walls of the vault began to buckle, ancient stones being ripped from their sockets. Megumi shouted over the roaring wind, "Sensei! Stop! The barrier system won't hold if you keep pushing the output! You'll bring the whole mountain down on us!"
Gojo ignored him. His blue eyes burned brighter, the Six Eyes calculating the exact trajectory of the traitor's atoms. "Then we finish it quickly. I don't like keeping my students in the dark for too long."
The gravity sphere suddenly collapsed inward on itself. The explosion that followed shook the entire underground chamber, a concussive blast that sent a shockwave all the way to the surface of the academy.
BOOM.
Stone disintegrated into fine powder. The throne's shattered remains were sucked into the crushing singularity and pulverized. When the energy finally faded and the roaring silence returned, a massive crater—twenty feet deep—had formed where the traitor once stood.
Megumi stared at the destruction, breathing heavily, his hands still trembling from the pressure. "Did… did that work? Nothing could survive a direct hit from Blue at that range."
For a long, agonizing moment, nothing moved. Then, the traitor stepped out of the dust.
It was completely intact. Its white hair drifted gently in the settling debris, and its black-marked skin didn't show a single tear.
"That was… impressive," the traitor admitted calmly, stepping onto the edge of the crater as if it were a simple puddle. "Your speed is unrivaled. Your precision is... commendable."
Gojo clicked his tongue, a look of genuine annoyance crossing his face. "Seriously? Not even a scratch? You're starting to become a real pain in the neck."
The traitor looked down at the cracked floor, then back at Akira. "You misunderstand something, SixEyes. I did not survive the original King by being fragile. I survived because I learned how to exist between the spaces of your reality."
The temperature in the vault dropped sharply, frost blooming across the stone. Akira suddenly felt the Abyss King move inside his mind again. But this time, it wasn't the roar of anger. It was a cold, sharp Recognition.
"…He improved," the King whispered, his voice sounding hollow and haunted.
Akira blinked, his vision flickering with violet streaks. "What do you mean, he improved?"
The King's voice grew darker, filled with a thousand years of regret. "He didn't just betray me. He studied me. He learned the rhythm of the Abyss while he was serving as my shadow. He learned how to survive the very power you are currently wielding."
The traitor raised its hand again, but this time, it didn't point at Gojo. It pointed directly at Akira.
"Enough games."
The air screamed as the traitor's energy peaked. Five thin blades of darkness appeared in the air around its hand, each one humming with a frequency that made Akira's teeth ache. These weren't just energy blasts; they were Condensed Void, capable of slicing through a skyscraper as if it were made of paper.
Megumi reacted instantly, his survival instincts overriding his fear. "Domain Expansion: Chimera Shadow Garden!"
It wasn't a complete domain, but it was enough. A wave of liquid darkness exploded from Megumi's feet, swallowing the ground and forming a swirling sea of shadows beneath them. Black tendrils rose like serpents from the ink, attempting to restrain the traitor's movements and sink its feet into the abyss.
For a split second, the traitor paused, looking down at the shadows. "…Clever. A shadow user who understands the weight of the dark."
Megumi gritted his teeth, blood trickling from his nose from the effort of maintaining the technique against such a powerful opponent. "Akira! NOW!"
Akira understood immediately. He didn't need the King to tell him what to do. He stepped forward, the violet energy around him flaring into a violent, electric storm.
Inside his mind, the King laughed, a sound of dark triumph. "Finally. Show him the weight of the sky he tried to steal."
Akira raised his hand toward the traitor. The pressure in the vault multiplied instantly, the gravity becoming so intense that the air itself began to glow a dull purple.
"DOWN."
This time, the command wasn't a whisper. It was a Declaration.
The invisible weight slammed into the traitor like a falling mountain. The floor beneath its feet shattered instantly. Megumi's shadows reinforced the pressure, wrapping around the traitor's limbs and pulling downward with a thousand tons of force.
For the first time in a thousand years—the traitor's body bent. Its knee hit the ground with a bone-jarring crack.
Megumi gasped, a surge of adrenaline hitting him. "You forced him down! He's vulnerable!"
But the victory lasted only a heartbeat. The traitor's smile returned, cruel and wide. "…Good. You have the spark. But you lack the fire."
In the next second, all five black blades fired simultaneously. They tore through Megumi's shadow tendrils as if they were cobwebs. One blade shot toward Gojo; two shot toward Megumi; and the final two—aimed with lethal precision—shot toward Akira.
Gojo reacted instantly. "Infinity!" He deflected the blade aimed at him, but the traitor had accounted for his position. Megumi barely managed to roll across the ground, the blades intended for him slicing through the vault wall behind him, causing a section of the ceiling to collapse.
But Akira—he was too exhausted from the "Down" command. He couldn't move. The blades were already too close, their dark edges reflecting in his wide eyes.
Megumi shouted in a panic that echoed through the entire mountain. "AKIRA!"
At the last second—the Guardian moved.
Even though its upper body had been severed in the previous chapter, the massive, broken construct still obeyed its final directive. Its remaining obsidian arm swung forward in a desperate, arc-like motion.
The blades struck the Guardian's armor instead of Akira's flesh. The impact was catastrophic. The blades split the construct completely apart, metal and obsidian fragments exploding across the chamber like shrapnel.
But the sacrifice worked. The attacks missed Akira's vital organs. One blade grazed his shoulder, the edge so sharp it bypassed his skin and cut directly into the muscle.
Blood splashed across the stone, dark and hot. Akira fell to one knee, clutching his shoulder, his breath coming in ragged gasps.
Megumi rushed toward him, sliding through the shadows. "Akira! Stay with me! Don't look at the wound!"
Akira grabbed his bleeding shoulder, the violet electricity in his eyes flickering like a dying candle. The traitor watched quietly from the center of the crater, unmoved and untouched.
"…Interesting. Even the mindless metal would rather die than see you bleed."
Gojo's voice suddenly turned colder than ice—a tone that made even the traitor stop talking. "You just made a very big mistake."
The traitor looked at him, tilting its head. "Oh? And what would that be, Six Eyes?"
Gojo's smile returned, but there was no light in it. It was the smile of a god who had decided to stop playing. "You hurt my student."
The air around Gojo distorted violently, the colors of the room beginning to bleed into one another. Megumi immediately realized what was coming and his eyes widened in terror. "Sensei—wait! If you use a Domain Expansion here, the entire school will collapse! The foundations won't hold!"
But Gojo had already raised his hand, his fingers crossing into the sign of the Infinite Void.
"Domain Expansion—"
"STOP."
Akira's voice cut through the chamber like a knife. It wasn't loud, but it carried a weight that made Gojo's hand pause. Megumi stared at Akira in disbelief.
Akira slowly stood up, blood running down his arm and dripping onto the floor. His eyes weren't flickering anymore. They were glowing with a steady, terrifying brilliance—a violet that was deeper than the abyss itself.
"No," Akira said quietly, his voice echoing with a double-tone—his own voice layered with the resonant bass of the King.
Gojo frowned, his blue eyes searching Akira's face. "What do you mean 'no', Akira? I'm ending this before it gets worse."
Akira stepped forward, his feet steady on the broken stone. "This is my fight. He came for the King. He came for me."
The traitor's crimson eyes sharpened with a new kind of interest. "Oh? The lamb wants to play the lion?"
Akira looked directly at the traitor, his gaze piercing through the dark. "You said you killed the King once. You said you were his shadow."
The traitor nodded slowly, a slow, mocking bow. "I was. And I did."
Akira clenched his fists, the blood on his hand beginning to steam as his cursed energy heated up. "Then fight me. Not Gojo. Not the school. Me."
Megumi's jaw dropped. "Are you insane?! He'll kill you in a second!"
Gojo studied Akira carefully for several seconds. He saw the way the violet energy was wrapping around Akira's wounds, acting like a spiritual bandage. He saw the resolve in the boy's eyes—the kind of resolve that couldn't be taught.
Finally, Gojo sighed and lowered his hand. He stepped back, much to Megumi's horror. "…Kids these days. So much drama."
Megumi spun toward him. "YOU'RE JUST GOING TO LET HIM FIGHT THAT THING?!"
Gojo shrugged slightly, his eyes never leaving the traitor. "If he wants to be the King… he needs to prove he's not just a crown for someone else to wear. Besides," Gojo's grin returned, sharp and lethal, "I'm right here if he slips up."
The traitor laughed softly, the sound like dry leaves skittering over a grave. "Yes. Come then, little King. Show me the strength of the soul that had the gall to refuse the throne."
The five black blades reformed in the air behind the traitor, humming with a renewed, murderous energy. "Show me if your life is worth more than the one I took a thousand years ago."
Akira stepped forward. Each step felt like he was walking through thick mud, the pressure from the traitor trying to crush his spirit. Blood dripped onto the cracked stone floor—thump, thump, thump.
Inside his mind, the Abyss King spoke one final time. "Careful, child. If you lose here, there is no second chance. He will erase us both."
Akira replied calmly, his heart finally finding its rhythm. "I know."
The violet energy around Akira began to expand. It didn't explode wildly like before; it grew steadily, like a rising tide that refuses to be held back by a dam. It filled the crater, pushing back the traitor's crimson aura.
The traitor tilted its head slightly, its smile faltering for the first time. "…What are you doing? You have no technique. You have no weapon."
Akira raised his hand again. But this time, he didn't say "Down." He didn't say "Kneel." He didn't use the King's commands. Instead, he whispered a word that came from his own soul.
"BREAK."
The air itself cracked. A sound like a thousand mirrors shattering simultaneously filled the vault.
For the first time in a thousand years—the traitor's smile disappeared.