Fics like Trihexia Keys

Before the Celestial Spirits, there was Heaven and Hell. Lucy Heartfilia was eight years old when her mother told her the truth. Not the bedtime stories about golden keys and Zodiac spirits—every child grew up on those. This was something older. Something buried. Layla Heartfilia, the most celebrated Celestial Spirit Mage of her generation, took her daughter's small hands in her own and whispered a secret that scholars had spent centuries trying to erase. The silver keys and the golden keys are not the beginning. Long before the Celestial Spirit King forged the first Zodiac gate, there were fourteen other keys. Seven black as obsidian, cold as the void between stars—the Trihexia Keys, each one binding a Devil of the Seven Deadly Sins. Seven luminous as dawn, warm as a mother's embrace—the Zion Keys, each one commanding a Seraph of the Seven Heavenly Virtues. Angels and devils, sin and grace, locked into contracts that no mortal mage had dared attempt in a thousand years. And the legend? The legend said that whoever collected all fourteen could make a wish without limits. A wish that could reshape creation. A wish that could bring back the dead.

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