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Deep Sea’s Fatal Pact

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30 episodesComplete

Eastern FantasyFantasyAnime
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About Deep Sea’s Fatal Pact

To secure the deep-sea throne, royal heir Kairen refuses an arranged noble match and forces humble shallow-sea mermaid Isola into a perilous one-year contract marriage that will alter the tides of their kingdom forever. What begins as a cold political pact soon ignites into undeniable passion as an ancient bond awakens Isola's dormant pure-blood powers. Surrounded by lethal court conspiracies and ruthless assassination attempts, their calculated deception transforms into fierce, unconditional devotion. But dark ambitions lurk within the sunken palace. Driven by jealousy, the cunning noblewoman Diana unleashes forbidden black-pearl sorcery to shatter their fragile paradise. Framed for the ultimate treason—stealing the sacred royal core—a devastated, pregnant Isola faces the unthinkable when Kairen sentences her to exile. Believing her beloved ruler has traded their sacred vows for imperial power, she disappears into the abyssal depths carrying their unborn royal twins. Will vengeance rule the dark oceanic abyss, or can the truth rise to restore their fractured dynasty?

Episodes 30

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30 episodes so far, and the story is complete. You can open any one from the episode list above.

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