Fics like The Heir of Neptune (Platonic Siren Sans x Young Reader)

Y/N L/N has a secret. She is the daughter of one of the most powerful deities in the world. In a world where many beings practice magic, she should be welcomed. But she's not. Humans are only supposed to have abilities based on their SOUL type. A human with magic? Impossible. In an accident, she's found out. She's taken captive. Now she's stuck in an aquarium, considered an animal, and has to fight so survive against the aquarium's previous attractions, as they might not be as friendly as she'd hope.

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