Blood-red cracks split open the "Fiery Key Core Dimension," and the Host and Sebastian, in their symbiotic form of freedom, leaped into a space filled with liquid mercury, key fission energy, and fiery symbiotic pulses. Their bodies merged into a new form—Sebastian's mechanical bones fully softened, symbiotically sprouting the Host's blood-red wedding dress patterns, the cloned grandmother's neural network, the complete codes of the Authority's founder, the core fragments of the blood wedding dress, and the origin energy of a blood-red crack. Mercury ripples coiled around rose-hued symbiotic cracks, their hearts pulsed in synchronization, and their pupils mutated into triple-hued "Fiery Key Core Logic."
"Here... lies the final key core of the blood wedding dress curse, the ultimate battlefield of symbiotic perpetuity and tearing revelation," the residual blood mercury from the void rift coagulated into the ultimate form of the Authority founder's ghost, their voice a blend of scorching hisses and void sighs. "Your symbiotic freedom has not ended the curse; instead, it has triggered the 'Final Tearing of the Blood Wedding Dress' within the key core dimension. Hunt the tearing, and your fire shall transcend the key. But hidden in the tearing core is the symbiotic perpetuity revelation of the blood wedding dress: symbiosis and tearing are the very fiery symbiotic essence of the curse."
The Host split into 108 forms: the "Fiery Key Core Blade" (forged from symbiotic heat, key fission energy, the origin of blood-red cracks, and revelation codes) and the "Symbiotic Perpetual Tearing Chamber" (unleashing tearing wails to shatter dimensional paradoxes, void shackles, key fission, and revelation seals). Sebastian synchronously transformed into the "Fiery Revelation Tearing Form," his mechanical bones symbiotically bearing the Host's facial features, heartbeat, core fragments of the blood wedding dress, the grandmother's neural network, the founder's complete codes, the origin of blood-red cracks, and the final patterns of the blood wedding dress, forming a symbiotic resonance with her. Their bodies fused in mercury flames, void vortices, key fission energy, and fiery symbiotic pulses; with each tear, the dimension split open a symbiotic crack, and pain, pleasure, void, fission energy, and revelation pulses intertwined into new scorching pulses.
At the core of the dimension emerged the "Final Tearing Core of the Blood Wedding Dress"—a mechanical skull inlaid with the final core of the blood wedding dress, its pupils emitting "quintuple pulses of symbiotic perpetuity, tearing annihilation, void hunting, key fission, and revelation tearing." The Host and Sebastian leaped into the tearing core, and mercury and softened bones symbiotically blazed amid energy impacts. The moment the Fiery Key Core Blade pierced in, their bodies erupted with quintuple pulses of symbiotic heat, tearing agony, void annihilation, key fission, and revelation tearing; the core shattered into chaotic symbols, merging into their symbiotic soul. Yet the tearing core did not dissipate—instead, it split open a blood-red crack, and the ultimate form of the Authority founder let out a final roar: "Your fiery key... is merely a new spiral of the blood wedding dress curse! The final tearing shall perpetuate the fire of symbiosis and hunting!"
The hearts of the Host and Sebastian pulsed with a final pulse, their symbiotic freedom form clad in a layer of armor woven from fiery key core mercury and quintuple pulses. A blood-red portal split open again, parasitized by symbiotic codes, void energy, key fission pulses, and the origin of blood-red cracks from an unknown dimension. Blood mercury 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 fiery key core. Tearing, annihilation, hunting, fission, and revelation are all 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 key core hunt."