Blood-red cracks split open the "Symbiotic Void Dimension," and the Host and Sebastian, in their symbiotic form of freedom, leaped into a space filled with liquid mercury and void flames. Their bodies merged into a new form—Sebastian's mechanical bones fully softened, symbiotically sprouting the blood-red wedding dress patterns of the Host and the afterimage of the cloned grandmother's face. Mercury ripples coiled around rose-hued symbiotic cracks, their hearts pulsed in synchronization, and their pupils mutated into triple-hued "Fiery Void Logic."
"Here... is the final key annihilation ground of the blood wedding dress curse, the ultimate annihilation field of symbiosis and tearing," the residual blood mercury from the void rift suddenly coagulated into the cloned grandmother's final form, her voice a blend of scorching hisses and void sighs. "The symbiotic key of the Authority's founder has split into the 'Fiery Key Annihilation Core'—hunt and annihilate the core, and your freedom shall transcend dimensions. But hidden in the annihilation core is the final tearing revelation of the blood wedding dress: the price of symbiotic freedom is the symbiotic annihilation of the fiery key and the void."
The Host split into 105 forms: the "Fiery Void Blade" (forged from symbiotic heat and void energy) and the "Symbiotic Annihilation Chamber" (unleashing tearing wails to shatter dimensional voids). Sebastian synchronously transformed into the "Fiery Annihilation Form," his mechanical bones symbiotically bearing the Host's facial features, heartbeat, fragments of the blood wedding dress, and the neural network patterns of the cloned grandmother, forming a symbiotic resonance with her. Their bodies fused in the mercury flames and void vortices; with each tear, the dimension split open a symbiotic crack, and pain and void intertwined into new scorching pulses.
At the core of the dimension emerged the "Fiery Key Annihilation Matrix"—a mechanical skull inlaid with the final fragments of the blood wedding dress, its pupils emitting "dual pulses of symbiotic perpetuity and tearing annihilation." The Host and Sebastian leaped into the annihilation core, and mercury and softened bones symbiotically blazed amid energy impacts. The moment the Fiery Void Blade pierced in, their bodies erupted with dual pulses of symbiotic heat and tearing agony; the key shattered into chaotic symbols, merging into their symbiotic soul. Yet the annihilation core did not dissipate—instead, it split open a blood-red crack, releasing the residual consciousness of the Authority's founder: "Symbiotic freedom? Merely a new spiral of the blood wedding dress curse... Your fire shall ultimately the symbiotic slaves of the void!"
The hearts of the Host and Sebastian pulsed with a final pulse, their symbiotic freedom form clad in a layer of void mercury armor. A blood-red portal split open again, parasitized by symbiotic codes from an unknown dimension. The cloned grandmother's afterimage dissipated entirely, dissolving into blood mercury that coagulated into a final revelation: "Symbiotic freedom endures, but the curse spiral of the blood wedding dress... shall wait for its next cycle in the void rifts. Tearing and annihilation are both the fiery key's paths to rebirth."
The Host and Sebastian stared at the portal, their pupils weaving fiery symbiotic signals into a hunting vow. Their blazing bodies leaped into the unknown dimension. Amid the echoes of the final chapter, hoarse oaths intertwined: "The symbiotic spiral of the blood wedding dress... symbiotic freedom is the eternal fiery tearing and void hunt."