Screen 1 — Captured and Summoned
After the Rui mission, the Butterfly Estate heals the group just like canon.
Soon after, Kakushi arrive — blindfolded, formal — to escort them to the Ubuyashiki Estate.
Zenitsu complains the whole way, Inosuke grunts, and Tanjiro walks silently with Nezuko's box strapped tight to his back.
> Venom (quietly): "They're taking us to judgment."
Tanjiro: "Then we'll show them the truth."
The gates open. The Hashira await.
Wind whips through the courtyard as nine of the most powerful Demon Slayers in existence turn toward the trio.
Everything proceeds like canon — formalities, accusations, the tension thick enough to choke on.
---
Screen 2 — Sanemi's Provocation
Sanemi steps forward, smirking, blade in hand.
> Sanemi: "So this is your 'special' demon? You think she's different from the rest? They all crave blood in the end."
He slashes open his forearm and lets crimson droplets fall over Nezuko's wooden box.
Tanjiro's body tenses — Venom's pulse ripples beneath his skin.
> Venom (whispering): "He's mocking us. Testing your sister. Let me handle him."
Tanjiro: "No. Stay calm."
Venom: "If he stabs that box again, I won't promise anything."
Sanemi drives his sword into the lid — the wood cracks, the echo slicing through the hall.
That's the trigger.
---
Screen 3 — Venom's Warning
A black tendril bursts from Tanjiro's shoulder, wrapping around Sanemi's blade mid-thrust — unbreakable, pulsating.
> Venom (growling): "Touch her again, and I'll show you what fear tastes like."
Gasps ripple through the room. Even Rengoku's grin falters. Shinobu tilts her head, fascinated and uneasy.
> Sanemi: "So the brat's possessed now?"
Venom: "Possessed? No… perfected."
Tanjiro pulls at the tendril, breathing deeply through gritted teeth.
> Tanjiro: "Stop. He's a Hashira. We can't fight them."
Venom: "He stabbed your sister."
Tanjiro: "And I'll protect her — without losing control."
Venom hesitates, the tendril vibrating with restrained fury, before retracting slowly.
---
Screen 4 — The Clash
Sanemi, seething, slashes again — this time aiming for Tanjiro's chest.
Venom reacts instinctively — black armor flares, deflecting the strike with a metallic shriek.
The wind explodes around them, scattering leaves and parchment.
> Venom: "Impressive speed. But not faster than me."
Sanemi: "Then fight, monster!"
Before either can move again, a calm, gentle voice stops everything.
> Kagaya Ubuyashiki: "That's enough."
Instant silence. Even Venom stills.
The tendrils sink back under Tanjiro's skin, the black sheen fading from his face.
Tanjiro bows low.
> Tanjiro: "Please… trust my sister. She's never harmed a human. She never will."
Venom (quietly): "You did well not to kill him."
Tanjiro (whispering): "We're not here to fight allies."
---
Screen 5 — The Proof
Later, under Kagaya's watch, Sanemi opens Nezuko's box again — blood dripping from his arm.
Nezuko's eyes flicker gold in the light.
She breathes in, trembles… then turns away.
The Hashira stare — silent disbelief.
> Venom (low, almost proud): "She resisted. Pure instinct… and she fought it. That's rare — even for us."
Tanjiro: "Now they'll understand."
Sanemi lowers his sword slowly. Even he can't deny what he's seen.
Rengoku laughs in amazement. Shinobu smiles thinly. Mitsuri claps, whispering, "How sweet."
Venom rises slightly across Tanjiro's shoulder, his eyes glowing faintly.
> Venom: "See, our allies don't attack or kill us now."
The Hashira step back in collective shock — some in awe, others in confusion.
A demon inside a boy, protecting another demon.
Even Kagaya smiles faintly.
> Kagaya: "Perhaps fate has brought us something… new."
Be continued...