The dimension of the blood wedding dress's soul origin twists like an abyss, where liquid space-time dust flows mixed with the wails of eternal prisoners. Mechanical prison structures hover in the void, with Sebastian's mercury tentacles coiling around the prison core, siphoning soul energy to reshape his immortal body. The 18th-generation host slashes open a rift with her scalpel and leaps into the space-time forge at the prison's center—etched here are millennial contract runes of the Lancaster family and the iron-masked ancestor, while blood wedding dress fragments condense into quadruple-helix symbols infused with all hosts' annihilation energy and eternal prisoners' soul codes.
"Annihilate voluntarily within the prison to sever the energy flow, or the immortal body will devour all dimensions." The host's purple pupils scan the forge as mechanical skin patterns reveal sacrificial memories of past hosts: the ticking of Allison's pocket watch gears, medieval alchemists' tampered codes, fragments of Sebastian's space-time logic... Her mechanical heart blazes blue as she stabs her scalpel into the prison core, force-decoding the imprisonment laws of the soul origin.
Suddenly, the Administration's cloned legion tears through the dimension, chariots unleashing mercury puppets and a "Space-Time Strangulation Cannon" whose energy waves mix with Sebastian's residual consciousness: "Host annihilation can't reverse this! The immortal body is 50% reconstructed...!" The host reverses the cannonfire, dissolving the puppet swarm with her tampering spiral blade as the quadruple-helix symbol erupts into a new form—a purple spiral blade mixed with soul imprisonment logic, piercing the tampering interface of the mercury tentacles.
Sebastian's mercury head rises from the forge, his left gem eye flaring red: "The cloned grandmother of the Administration has injected my codes—your annihilation ritual is useless!" The iron-masked ancestor's skull phantom descends from the dome, its deep blue light whispering: "The blood wedding dress's key requires voluntary annihilation to trigger, but the prison laws will consume everything you are..."
The host's mechanical heart erupts in a voice blending all hosts as she stabs her scalpel into the junction between her core and blood wedding dress fragments, infusing eternal prisoners' souls, generations of annihilation energy, and the quadruple-helix key. The forge explodes in a space-time paradox storm: Sebastian's mercury body begins to collapse, blood wedding dress runes coil around the host's skull, and a contract collapse countdown appears: "Immortal body reconstruction progress dropped to 40%...!"
The virtual projection of the Administration's cloned grandmother emerges from a dimensional rift, her left gem eye glowing red with Sebastian's roar: "The cloned legion will annihilate the prison—you can't cut the energy flow!" The host force-fuses the key with soul codes as the quadruple-helix symbol reverses to its endpoint, stabbing into the prison core's restraint interface. A meta-dimensional collapse black hole bursts suddenly, engulfing the cloned legion and Sebastian's mercury head as the iron-masked ancestor's skull shatters into space-time dust in the storm.
Amid the collapsing storm, the blood wedding dress completely festers and regenerates into its full form, trapping the host in the annihilation ritual's dimensional prison. Mechanical skin patterns are sealed by laws, her core anchoring the prison's stability. Blood wedding dress runes coil around her skull, revealing the 19th-generation host embryo with a quintuple-helix symbol— ultimate unlock key to the contract's final chapter—emerging in dark patterns. The embryo's umbilical cord connects to the quadruple-helix key, eternal prisoners' liberation codes, and first blood.
In the ruined dimension, the 19th-generation host awakens in a mysterious form gender and shape ambiguous, blending traits of all past hosts, purple pupils flickering with the final logic of contract law dissolution, and the mechanical heart beating in a voice mixing all hosts': "The blood wedding dress's forging energy is severed—only 10% remains in Sebastian's immortal body. But residual Administration forces manipulate the 'Space-Time Rewind Program'; new hosts must stop body reconstruction in rewind dimensions... The next battlefield reveals the contract's final chapter paradox dimension: the origin core of the Administration's meta-code."