Eternal Seal (永久封印, Eikyū Fūin)
A forbidden jujutsu technique passed down through a lost clan of seal masters.
The Eternal Seal is a high-level binding technique that halts the flow of cursed energy within a target by encasing their spirit in an unbreakable metaphysical seal. Once activated, the seal freezes the target in a state of suspended spiritual stasis—neither alive nor dead, unable to use cursed energy, and cut off from the flow of the world. Only users with an innate understanding of binding techniques and an enormous cursed energy reserve can perform it.
Risks & Limitations:
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Using the Eternal Seal consumes a permanent portion of the user’s soul, reducing their total cursed energy.
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If the target possesses a Domain Expansion, the seal cannot activate unless the domain is neutralized or bypassed.
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Once sealed, the caster cannot undo the technique alone—the seal is “eternal” unless broken by an external, equally powerful curse user.
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