The battlefield was a whirlwind of chaos and resolve. Slayers from across the Corps clashed with Muzan in a desperate struggle. The Demon Queen hissed and lashed out with claws and tendrils, her movements a blur as she fought against the onslaught of Hashira and their allies. Sparks flew as blades clashed, Blood Demon Art met Breathing techniques, and the unyielding determination of the Demon Slayer Corps pressed Muzan further into a corner.
Bell stood at the forefront, his Sun Breathing blade blazing with golden radiance. "You're not as untouchable as you think, Muzan!" he taunted, a wicked grin on his face as he dodged a flurry of her lethal strikes. "Let's see how long you can keep this up."
Muzan snarled, her crimson eyes flashing with fury. "You will all die by my hand! None of you can stop me!"
Then, the sound of a biwa pierced the air, sharp and unrelenting. Everything froze for an instant as the deep, haunting melody reverberated through the battlefield.
Before anyone could react, the ground beneath their feet dissolved into shadows, and the world warped. The once-familiar estate was gone. Instead, a dizzying void stretched infinitely in all directions, fragmented structures floating in an otherworldly, distorted space.
The Hashira, along with Bell, Tanjiro, and the rest of the Corps, were falling.
As they plummeted through the castle's endless depths, the Slayers each grappled with their thoughts.
Tanjiro Kamado
Nezuko… His sister's face flickered in his mind, her bright smile a beacon of hope. I promised to protect you, to end this nightmare for good. I can't falter now. If we don't stop Muzan here, she'll keep taking families apart—just like ours. I'll find my footing. I'll fight. And I'll win—for everyone counting on us.
Bell Cranel
Bell's eyes gleamed with excitement even as the wind rushed past him. Falling into a deathtrap? Sounds like my kind of day. He clenched his sword tightly. These Demons might think they can overwhelm us with tricks, but they don't understand what we're made of. They don't know the fire that drives us. I'll show them—and I'll enjoy every moment of it.
Kyojiro Rengoku
The Flame Hashira's laughter echoed even as he tumbled. This is nothing! A true warrior stands tall no matter where they fall. This castle will burn with the fire of our resolve, and I'll ignite the path forward for everyone! For my family! For the Corps! FOR HUMANITY!
Shinjuro Rengoku
The elder Rengoku gritted his teeth, his hand steady on his blade. I may have faltered before, but I won't fail again. Kyojiro, I see now what you've always believed in. I'll fight by your side, for the honor of our family and the memory of those we've lost.
Gyomei Himejima
The Stone Hashira remained composed, the weight of his chained weapon familiar in his hands. The Master's sacrifice… I must ensure it was not in vain. These Demons are a plague upon this world, and I will eradicate them with the strength of the mountain.
Mitsuri Kanroji
The Love Hashira's eyes burned with uncharacteristic intensity. This castle may be infinite, but it can't contain the love I have for my comrades, for humanity! Muzan… your reign ends tonight!
Sanemi Shinazugawa
Sanemi growled, his fingers itching for his sword. That Biwa Demon thinks this scares us? We've faced worse! I'll carve my way through this castle, Muzan, and all her lackeys if I have to!
Tengen Uzui
Tengen scoffed, flashing a grin even in freefall. A flashy entrance into a flashy trap. How fitting. Let's turn this castle into a stage and end this drama with an explosive finale.
Shinobu Kocho
Shinobu tightened her grip on her blade, her thoughts steady and clinical. The poison I carry isn't just for me—it's for everyone we've lost. Kanae, I'll avenge you. I'll make sure this ends.
Obanai Iguro
The Serpent Hashira's gaze was cold and calculating. This isn't the first time we've been pushed into a corner. But a cornered serpent strikes hardest. Muzan… you'll regret pulling us into your lair.
Muichiro Tokito
The Mist Hashira's thoughts drifted between calm and determined. The fog of the past has cleared. I'll cut through the haze of this battle too. Nothing will stop me now.
With a thunderous crash, the Slayers landed across various platforms and corridors within the twisted labyrinth. Muzan's presence pulsed through the air, an oppressive force that weighed on everyone. The fight was far from over—but the fire in the Slayers' hearts burned brighter than ever.
Bell stood first, brushing dust off his uniform. "Looks like we're guests in Muzan's playground. Let's show her what real Demon Slayers are made of."
The Slayers nodded, rallying together. The stage was set for the final showdown. The Infinity Castle had become the battleground where humanity's last hope would fight its fiercest enemy.
The final battle had begun.