Demon Bride

(WARNING: This story will be sfw, but there will be some blood, implied death, fighting, some gore mentioned, and a few other things that will be made aware by warnings. Pay attention to warnings at the top of any chapters please.)

Once in the mountain villages it was a custom that once a year on the night of the new year's first moon, an unlucky young lady would be selected and left for the demons to become one of the unlucky few who married such a husband. In exchange for this offering the demons would protect the villages and leave the humans in peace. Until one day a powerful warrior drove the demons away freeing the humans of them. Now 2,000 years later, it's become a tradition that once a year, a new young lady would be picked and wait for her future husband to retrieve her from a shrine in the mountains. And now the lucky tradition would fall upon Y/n L/n. It would be her own turn to take on the tradition and not have to worry about demons. After all that part of the old tradition was just fake, made up by paranoid ancestors. Everyone knew demons didn't exist.

...Right?