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I'm human, but I'm also a transmigrator. And a transmigrator always comes prepared. I have a Sacred Gear waiting to awaken, with a power that could shake the supernatural world, even if I'm not ready to wield it yet.
    My Vampire Princess is a badass—and she's about to turn me into one of her kind. I have a Gremory Heiress waiting to be found, a devil who could change my whole status. And an ambition that reaches from the Heavens to the Abyss.
    This world isn't ready for the new Dark Lord, Aono Tsukune.
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    Disclaimer: This is a fanfiction crossover where various characters from other fandoms will appear thanks to the nature of the Annihilation Maker.
    The main worlds, Rosario + Vampire belongs to Akihisa Ikeda and High School DxD/Slash Dog belongs to Ichiei Ishibumi.
    I own only the original plot and my transmigrator's terrible decisions.