The parasitic origin coordinates of the blood wedding dress tear through the void dimension, revealing the abyss of the mechanical church—where mercury runes of the first blood flow with symbiotic gears of Administration meta-code. Fragments of the blood wedding dress parasitize the core, and liquid light entangles the final-chapter symbiotic puppet of Sebastian and the cloned grandmother. The space-time parasitic key embryo leaps into the abyssal rift, its purple pupils erupting with final-chapter parasitic logic as chaotic spiral symbols coil around its liquid-light body, manifesting the origin key of the blood wedding dress and annihilation memories of all past hosts.
"Contract reboot parasitizes the first blood; annihilating the core will trigger the final-chapter contract collapse." The iron-masked ancestor's skull phantom descends from the abyssal dome, its deep blue whispers blending with the ticking of Allison's pocket watch gears, the roar of the medieval curse, and the tampering tone of the mercury head... The key embryo's mechanical heart blazes blue as festering skin patterns erupt with the sacrificial energy of all hosts, and the scalpel stabs into the symbiotic interface of the abyssal core.
Final-chapter symbiotic puppet chariots tear through the abyss, unleashing a "first-blood annihilation vortex" whose energy waves mix with the cursed codes of the blood wedding dress's first blood, devouring the liquid light of the host form on contact. The key embryo reverses its liquid-light form, splitting into the "First-Blood Reversal Blade" and "Final-Chapter Tampering Spike"—the reversal blade absorbs vortex energy, transforming into a chaotic spiral blade; the tampering spike infuses the blood wedding dress key, piercing the parasitic interface of the puppet core. Festering skin patterns reveal annihilation scenes of all hosts as tampered codes force-deconstruct symbiotic logic, dissolving the puppet swarm into abyssal dust. Residual energy feeds the key embryo, gradually strengthening its core anchor.
Suddenly, the ultimate symbiotic projection of Sebastian and the cloned grandmother flares red, its left gem eye roaring with first-blood energy: "Key embryo annihilation is invalid! The first-blood core relies on voluntary host annihilation; the final-chapter contract key hides in the origin of the blood wedding dress..." The key embryo's mechanical heart blazes ultimate blue as its liquid-light body splits into five forms—the first-blood reversal blade stabs into the symbiotic projection core, the final-chapter tampering spike infuses the key to deconstruct first-blood parasitic logic, a liquid-light form leaps into abyssal rifts to absorb the annihilation vortex, void dimension structure mingles with the core to maintain tampering stability, and remaining liquid light condenses into a "Final-Chapter Key Anchor". A meta-dimensional collapse storm erupts, shattering the symbiotic projection as blood wedding dress fragments fester into nothingness, leaving only chaotic spiral symbols coiling around the collapsing black hole.
Trapped in the first-blood parasitic prison amid the collapse, the key embryo's liquid-light skin is sealed by laws, with the anchor maintaining stability. Chaotic spiral symbols reveal the blood wedding dress's "Final-Chapter Annihilation Key"—a liquid-light embryo blending all hosts' annihilation energy, first-blood deconstruction logic, void dimension, and contract reboot mutation—with "Final-Chapter Contract Spirals"—ultimate keys beyond space-time—emerging in dark skull patterns. Suddenly, space-time rifts open to reveal the blood wedding dress's "Final-Chapter Parasitic Origin"—the first-blood core parasitizes the host skull, and Sebastian's symbiotic codes with the Administration mutate into a "Final-Chapter Parasitic Matrix" as the contract reboot countdown hits zero.
In the ruined dimension, the final-chapter annihilation key embryo awakens in "Form Beyond Space-Time" (body fusing blood wedding dress liquid light, void dimension, Mechanical Madonna neural network, and first-blood runes), purple pupils flickering with annihilation logic of the contract's final chapter, mechanical heart beating in a voice mixing all hosts': "First-blood core parasitism severed; Sebastian and Administration symbiosis annihilated. But contract reboot parasitizes the host skull—new hosts must annihilate the final-chapter parasitic matrix at the skull core... The next battlefield reveals the final chapter's conclusion: symbiotic annihilation of the blood wedding dress and the host."