Screen 1 — Disguises in Yoshiwara
Just like canon, Tengen Uzui takes Tanjiro, Zenitsu, and Inosuke into the heart of the Entertainment District.
Their mission: locate the demon hiding among the courtesans.
The three boys — disguised in women's clothing — blend awkwardly into the lively streets.
Lanterns glow, laughter echoes, and music hides the scent of blood underneath.
> Venom (muttering): "This disguise is humiliating."
Tanjiro (whispering): "It's part of the mission!"
Venom: "You're wearing lipstick. We're done talking."
The moment earns a confused glance from Zenitsu, but the humor fades as Tanjiro's nose twitches.
> Tanjiro: "There's something wrong here… a powerful scent of demon."
Venom (low): "Sweet. Rotten. Wrapped in silk. Found her."
Result: The hunt begins — Upper Moon Six detected.
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Screen 2 — Daki vs. Venom–Tanjiro
The upper floors of the district creak as Tanjiro enters.
Perfume mixes with decay. A seductive, mocking voice breaks the silence.
> Daki (grinning): "A boy in my district? How cute. I'll make you beautiful forever."
Ribbons explode from her kimono, slicing through pillars and walls.
Venom reacts instantly, coating Tanjiro in black armor.
> Venom: "She's fast."
Tanjiro: "Then we'll be faster."
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Round 1 — The Obis' Dance
Dozens of silk ribbons whip out, cutting through the air at sonic speed.
Tanjiro flips through the narrow hall, parrying the first few strikes.
Venom spreads tendrils across the ground, intercepting the rest.
> Daki (teasing): "A demon protecting a human? How odd."
Venom: "Wrong. We protect everyone."
Tanjiro's sword glows red-orange.
> Tanjiro: "Sun Breathing — Second Form: Clear Blue Sky!"
He spins midair, his blade forming a blazing circle.
Half of Daki's obi ribbons are sliced apart — the rest melt in Venom's acidic grip.
> Daki (shocked): "You're cutting my obi! That's impossible!"
Venom (smirking): "Not impossible. Just hungry."
Venom devours the severed silk midair, leaving black smoke where it burned.
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Screen 3 — Round 2: Daki's Rage
Enraged, Daki fuses with her true form — her aura glowing emerald and red.
> Daki: "You think strength makes you special? Beauty is power!"
Venom (snarling): "Beauty can rot."
She unleashes hundreds of ribbons at once, forming a deadly spiral.
Tanjiro channels both rhythm and instinct.
Each swing flows with Sun Breathing's precision and Venom's kinetic power — a perfect storm of flame and motion.
Her limbs are sliced apart in a blur.
> Tanjiro: "You prey on the weak — that's not beauty."
Venom: "It's filth."
Daki's head falls halfway from her shoulders — until another voice cuts through the silence.
> Gyutaro (darkly): "Hey, sis… who's hurting you?"
The ground splits open as poison floods the air.
> Venom: "Another one. Stronger. Smells like blood and hate."
Tanjiro: "Then we face them together."
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Screen 4 — Tengen's Arrival
The district trembles. Tengen Uzui bursts through the ruins, blades spinning, sound booming like drums.
Zenitsu and Inosuke follow behind.
> Tengen: "Kamado! You found them first, huh? Flashy as ever!"
Venom: "We were bored."
Tengen (grinning): "Good. You'll like this next part."
He points to the burning district.
> Tengen: "Zenitsu! Inosuke! Evacuate the civilians. Protect the wounded!"
Zenitsu / Inosuke: "Roger that!"
With civilians safe, the real fight begins.
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Screen 5 — Round 1: The Clash of Rhythm
Gyutaro moves first, blood sickles flying in crimson arcs.
The air hums like a drumline of death.
> Venom: "He moves like a heartbeat. Left, right, double slash."
Tengen: "I hear it too — his tempo's triple-time!"
Sound Breathing meets symbiote radar — they synchronize perfectly.
Venom forms black armor on Tanjiro's arms while Tengen's dual cleavers intercept the rest.
The rhythm becomes theirs.
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Round 2 — Poison Storm
Gyutaro releases poison mist that corrodes stone and flesh alike.
Tengen wavers, but Venom expands across both bodies, filtering toxins through his biomass.
> Venom: "Poison neutralized. Keep moving."
Tengen: "Didn't think I'd owe my life to black slime — flashy teamwork though!"
Tanjiro slashes through the haze:
> Tanjiro: "Sun Breathing — Fifth Form: Flame Dance!"
His flames burn the poison to ash. Gyutaro stumbles back, regeneration slowing under the symbiote's heat.
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Round 3 — Counter Tempo
Gyutaro adapts fast, mirroring their rhythm.
> Venom: "He's learning. Change the beat."
Tengen: "Already ahead of you!"
Tengen shifts to irregular beats, explosions timing with Venom's pulses.
Tanjiro syncs breathing to both — Sound + Sun Fusion.
> Tengen: "He can't read us anymore."
Venom: "Now we hunt."
Tanjiro rockets forward — Venom converts Tengen's flash bombs into kinetic energy.
The blade hits Gyutaro dead center, slicing through his chest.
> Gyutaro (grimacing): "That stings… like sunlight."
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Round 4 — The Final Crescendo
Daki reappears, ribbons flaring.
Venom unleashes multiple tendrils to hold her down while Tengen duels Gyutaro head-on.
> Venom: "She's weakening. Focus on him."
Tanjiro: "Understood."
Tanjiro's sword ignites again — now pure white at the edges.
> Tanjiro: "Sun Breathing — Thirteenth Form: Burning Harmony!"
Tengen (laughing): "Now that's flashy!"
Their combined strike explodes in a cyclone of fire and sound.
Venom drives a tendril through Gyutaro's chest, pinning him, while Tanjiro's blade decapitates both demons in a single seamless slash.
Venom's acid burns away the bodies before they can fuse again.
Result: Upper Moon Six — eliminated.
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Screen 6 — Aftermath
The flames fade, revealing a destroyed but safe Yoshiwara.
Zenitsu and Inosuke return, exhausted but unharmed.
> Zenitsu: "We actually… did it!"
Inosuke: "Heh! Told you we'd win!"
Venom: "You didn't cut anything."
Inosuke: "What was that?!"
Tanjiro (smiling): "He means thank you."
Tengen sheathes his blades, chuckling.
> Tengen: "Another victory for the Demon Slayer Corps. Flashy, loud, and perfect!"
Venom: "Flashy, loud… we can agree on that."
The group stands beneath the shattered lanterns as dawn breaks over Yoshiwara — the sky glowing orange like Tanjiro's blade.
Be continued...