Screen 1
The trio climbs the misty path of Mount Natagumo.
Tanjiro walks ahead, his eyes scanning the fog. Zenitsu trembles, muttering prayers. Inosuke charges forward, yelling about "demons to slice."
> Venom (in Tanjiro's head): "Something's wrong here. I can feel strings everywhere… alive."
Tanjiro: "Spider webs. The people here are being controlled."
Zenitsu and Inosuke split off, their fights unfolding like in the original story — lightning flashes, boar roars echo through the forest.
Tanjiro moves deeper into the web-covered woods, the silence tightening around him.
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Screen 2 — Mother Spider Demon
Round 1 — Web Trap
The forest seems to breathe.
Corpses drop from the trees, twisted by puppet strings.
> Venom: "Threads in the air — too thin to see. But I can smell the silk."
Venom's tendrils slice outward, severing every thread in seconds.
The controlled bodies drop harmlessly to the ground.
> Tanjiro (thinking): "She's being forced to do this. Just like the ones she controls."
Result: Web ambush neutralized instantly.
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Round 2 — Mother's Web Domain
From a vast web cocoon, Mother Spider Demon emerges — trembling but enraged.
> Mother Spider Demon: "You cut my strings… no one cuts my strings!"
Hundreds of webs burst upward, forming a shimmering cage.
> Venom: "She's fast. The web's alive — but I can eat it."
Tanjiro: "Eat it?!"
Venom: "It's protein."
Venom spreads across Tanjiro's skin, devouring every thread that touches him.
The web collapses as her control disintegrates.
> Mother Spider Demon (shocked): "My threads… they're gone!"
Venom: "Tasty."
Result: Web network destroyed.
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Round 3 — Tanjiro's Compassion
She attacks again, forming huge, trembling web-limbs.
Venom blocks them, then withdraws.
> Tanjiro: "She's not fighting for herself. She's scared."
Venom: "Fear makes prey dangerous. End it."
Tanjiro steps closer, his voice soft.
> Tanjiro: "You don't need to suffer anymore."
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Round 4 — The Gentle Kill
> Tanjiro: "Water Breathing, Fifth Form — Blessed Rain After the Drought."
Venom coats the blade in sleek black metal.
One silent swing — elegant, merciful.
Her head falls gently, her face peaceful for the first time.
> Mother Spider Demon: "Thank you…"
Venom retracts quietly.
> Venom (low): "She wanted this. Mercy is strange… but kind."
Tanjiro: "She's free now."
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Screen 3 — Rui, Lower Moon Five
Round 1 — The Cage
Rui drops from the canopy, eyes cold. Razor-sharp silk forms a deadly dome.
> Rui: "Join my family. I'll protect you forever."
Venom: "We already have family. And we eat intruders."
Venom's radar traces every thread.
Tendrils latch onto Rui's silk, dissolving it instantly.
> Rui (shocked): "My silk— it's melting!"
Venom: "Organic material. High protein."
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Round 2 — Blood Demon Art
Rui's threads glow red, slicing the air.
> Venom: "Hardened with blood — can't block, must cut."
Tanjiro: "Water Breathing, Seventh Form — Drop Ripple Thrust!"
Venom fuses into the strike; the cocoon shatters.
Rui's arm falls — regeneration immediate.
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Round 3 — Desperation
Rui lashes whips of burning silk.
Venom forms dual arm blades, intercepting each strike.
> Venom: "He's repeating patterns. Predictable."
Tanjiro: "Then we end it."
Tanjiro inhales, blade ready.
> Tanjiro: "Water Breathing, Tenth Form — Constant Flux."
Venom spirals with him — blue and black currents tear through Rui's net.
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Round 4 — The Finisher
Rui leaps back, weaving new threads.
Venom fires a tendril straight through his chest, pulling him in.
> Rui: "You don't understand! Family is everything!"
Venom (cold): "You confuse chains for love."
Tanjiro swings once — clean decapitation.
Rui's body fades; Venom devours the remnants.
> Venom (quiet): "He wanted belonging… and killed for it."
Tanjiro: "He never knew what real family was."
Nezuko appears, crouching beside Tanjiro.
Venom's eyes soften within the black.
> Venom: "She fights hunger better than most of us."
Tanjiro: "She's why we fight at all."
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Screen 4
The night quiets. Rui's web burns to ash.
Venom retracts, leaving Tanjiro in his normal form.
Zenitsu and Inosuke regroup, the forest glowing with morning light.
> Tanjiro: "It's over. Let's move forward."
Venom: "Until the next hunt."
They disappear down the path, the symbiote whispering softly inside.
To be continued...