The air thickened — heavier than any miasma the Demon Slayers had ever faced. The creature that had emerged from Muzan's remains was not flesh and bone, nor was it simple energy. Its body flickered between ink-like kanji symbols, ancient script that no one present could recognize, constantly reshaping and warping.
Each step the creature took rewrote reality beneath its feet, twisting the ground into puzzles of language and symbols. Even the sky seemed to ripple with corrupted kanji, the clouds bending into sentences that made no sense.
"That… that's not a demon," Tanjiro said, eyes wide with dread.
"Then what is it?" Sanemi growled, already gripping his sword tighter.
The creature's face was nothing but a giant kanji for 'King', glowing blood-red.
Rengoku's flames flickered, unable to decide whether they should burn like fire or reshape into words. "This is no ordinary foe. This thing defies logic itself."
---
Saitama Steps Forward
Saitama, who had been yawning up until this point, scratched his head. "So… we're fighting a haunted Japanese dictionary now?"
The creature lashed out — tendrils made of thousands of kanji symbols shooting toward Saitama. Each tendril carried a command, a spell woven into the ancient language itself.
止 (Stop) — Saitama's foot froze mid-step.
砕 (Shatter) — the rocks beneath him crumbled into sand.
封 (Seal) — the air around his fist tried to lock his strength away.
Saitama blinked. "Huh?" He clenched his fist and punched the air.
The kanji symbols shattered like glass, breaking their spells instantly.
"Lame," Saitama said, taking another step forward.
---
The Hashira Join In
Seeing Saitama casually break the curse, the Hashira knew this was their moment to strike.
"We can't let this thing adapt to him," Giyuu warned. "We strike together."
Flame Breathing! Water Breathing! Wind Breathing! Love Breathing!
The air filled with a dazzling fusion of elemental techniques, each Hashira aiming directly at the core of the creature.
But the Kanji King simply rewrote their attacks.
火 (Fire) = 水 (Water) — Rengoku's flames turned to harmless rain.
愛 (Love) = 恨 (Hatred) — Mitsuri's whip-like blade twisted into chains that lashed back at her.
風 (Wind) = 無 (Nothingness) — Sanemi's fierce gusts evaporated into empty air.
"Damn it!" Sanemi roared. "It's controlling the very concepts we rely on!"
---
Tanjiro's Hidden Sense Awakens
Amid the chaos, Tanjiro's sense of smell picked up something strange — beneath the ink and language, beneath the rewriting of reality, there was a faint trace of something familiar.
"Wait!" Tanjiro shouted. "This thing… It smells like Muzan's regret."
Everyone froze.
Muzan, the invincible tyrant, had one weakness — his fear of death, his desperation to become eternal. In his final moments, that fear had taken form, creating the Kanji King — a creature not born of blood, but of Muzan's desperate written prayers for survival.
---
Saitama's Final Word
Saitama sighed. "You guys talk a lot."
He raised his fist, pointing it at the Kanji King.
"Hey, word-monster. Here's my kanji."
He punched forward — and in the wake of his fist, one giant kanji formed in the sky.
終 (End).
The punch tore through the creature, rewriting its very nature into nothingness. The battlefield fell silent, the twisted sky returning to clear blue, the ground settling under the weight of peace.
The Hashira stared in stunned silence.
"Did… did Saitama just create his own breathing style?" Zenitsu whispered.
Saitama yawned. "Nah. I just wrote the final chapter."
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To Be Continued...
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The end of the chapter