Reverse Four Symbols Seal.
A forbidden sealing technique that requires pre-inscribing fuinjutsu formulas into the user's body, designed to automatically trigger upon the user's death. When activated, the explosion of blood marks a wide sealing range—dragging everything within it into the underworld.
Although its depiction in the original records made it seem lackluster, its true destructive power was terrifying.
Several massive spheres of pitch-black blood energy locked down the entire area around Yoru. In an instant, the seal activated—devouring everything within its radius.
"Target eliminated."
Shimura Danzō let out a cold smirk as he stared at the now-empty battlefield.
"A shame I couldn't preserve his corpse for further research… but this is acceptable. Arrogant brat."
"Talking to yourself, Danzō?"
A calm voice rang out behind him.
Danzō stiffened, then spun around in shock—only to see Yoru standing there, completely unscathed.
"Impossible. The Reverse Four Symbols Seal should've completely neutralized you. Unless… that space-time technique Jiraiya once mentioned—could it be real?!"
A chilling realization dawned on Danzō, echoing intelligence reports Jiraiya had once forwarded to Konoha.
"Yuki Yoru not only possesses an exceptionally powerful Ice Release and unique secret arts, but also demonstrates mastery in swordsmanship and high-speed movement techniques. His terrifying mobility may exceed the limits of conventional body flicker jutsu—suggesting he has access to some form of space-time ninjutsu."
And now, it was confirmed.
The Reverse Four Symbols Seal had an enormous blast radius. Every possible escape path had been sealed. No matter how fast someone moved, they should've been caught in the explosion.
Only a space-time ninjutsu could've evaded it.
"You…"
Cold sweat trickled down Danzō's temple.
If this man truly wielded a space-time technique—on top of a catastrophe-level kekkei genkai like Ice Release...
He finally understood how Kirigakure must've felt when they were up against the duo of Namikaze Minato and Kushina Uzumaki.
And now… he was the one facing that same hopeless pressure.
"Looks like you weren't prepared to face me."
Yoru drew Hyorinmaru from his waist, a mocking smile tugging at his lips.
"So… are you and Konoha ready to suffer the same fate as Kirigakure?"
A howling gale swept across the battlefield, tearing away every trace of lingering mist. The air cleared—sharp and bright—but the furious wind only grew stronger, twisting the sky into chaos.
A wave of frigid air spread across the field. Crystals of frost began to form—so cold and oppressive that every Konoha shinobi nearby shivered involuntarily, their hairs standing on end.
"Bankai."
"Daiguren Hyōrinmaru!"
Blinding cold erupted like a tidal wave.
"Scatter! Avoid the frostbite! Alert every shinobi in camp—prepare for evacuation!" Danzō's face turned pale as he roared orders.
"We must engage at close range again and activate the Reverse Four Symbols Seal. If we don't kill him here, Misawa Bridge will end up just like Jinnan Town and Higashimatsuyama!"
"Yes, Lord Danzō!"
The Root operatives sprang into action.
While a few raced back to alert the rest of the Konoha camp, the majority launched themselves at Yoru—intent on sacrificing their lives to bring him down.
"Thousand-Year Ice Prison."
Dozens of massive ice pillars burst from the ground, forming shifting crystalline cages that surrounded the charging Root shinobi.
The icy prisons rapidly contracted—freezing the shinobi inside solid in seconds.
Within the ice, faint blood-red sealing light began to glow—triggering another wave of Reverse Four Symbols Seals.
But because the seals were completely frozen, their activation failed. The deadly explosion was snuffed out before it even began.
"Damn it, you bastard!"
Danzō gritted his teeth and formed hand seals, launching a Wind Release: Vacuum Sphere at Yoru.
But it barely chipped some ice from the translucent wall in front of him.
In response—a roaring ice dragon surged toward him.
"Lord Danzō, look out!"
"That bastard Yuki Yoru dares attack Misawa Bridge!"
"Use Fire Release! Melt his ice!"
The Konoha camp finally reacted to the overwhelming cold and spiritual pressure of Bankai.
Shinobi flooded in from all directions, charging toward Yoru.
Above them, snowflakes began to fall. A wintry storm had arrived.
Yoru's eyes darkened further, the air around him thick with icy death.
"Die."
He whispered, as a blizzard of frost consumed the battlefield.
Many Konoha shinobi tried to counter with Fire Release—but to their horror, the flames themselves began to freeze mid-air.
Ice surged across the field like a glacier, and the gently falling snow turned into the overture of the Shinigami of Winter.
Within moments, Misawa Bridge was buried in white—a frozen hell where hundreds of shinobi were entombed in glistening ice.
By the time Namikaze Minato and Kushina Uzumaki returned, Minato genuinely wondered if he had made a mistake in his Flying Thunder God teleportation.
It looked less like Misawa Bridge… and more like Higashimatsuyama.
"…What is this…?"
The battlefield was unrecognizable—transformed into a world of ice. Within the crystal-clear glacier, the frozen figures of Konoha shinobi stood in lifelike poses.
Kushina stood stunned.
A red haze of Tailed Beast chakra surged across her body. Her pupils shifted uncontrollably between human and vertical slits.
"Kushina!"
Minato stepped beside her, gently placing a hand on her shoulder and pulling her into his arms.
Her rage and grief threatened to tear her apart—but his presence grounded her, steadied her.
Even so, a deep anguish lingered in her heart.
"Minato…"
"Minato… Kushina…"
A weak voice echoed from within the ice.
Shimura Danzō staggered forward, breaking through a sheet of frozen crystal, bruised and bloodied.
"Lord Danzō!"
"Old man Danzō!"
Minato and Kushina rushed to help him, and Minato quickly pulled a soldier's ration pill from his pouch and offered it.
Danzō swallowed it, his already shadowed face now darker than ever as he surveyed the endless glacier surrounding them.
His body was covered in frostbite—but worse than that, he had lost something irreplaceable.
The Sharingan—his final gift from an old friend—hidden beneath his bandages…
Had gone dark.
Its red glow, and the three tomoe within, had vanished forever.
"Kill or be killed… no survivors…"
Danzō exhaled heavily, suppressing the pain.
"Minato, that bastard's thinking the same way we are—total war. He's already wiped out Kazama Valley, Taniguchi Sector, Onshirato Mine… This is a war of annihilation."
"You mean…"
Minato's face turned grim. "I'll order an immediate retreat—"
"No!"
Danzō's frozen hand clutched Minato's shoulder, his bloodshot eye filled with fury and madness.
"It's too late for that. This is a fight to the death, Minato. What you need to do now—is keep executing the original plan!"
"Have Kushina supply you with chakra. Push the Flying Thunder God to its limit. Bring down hell on Kirigakure. Destroy everything!"
"We either die —
Or take them with us!"
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