matrota
As the daughter of the local weapon and armor smith, Reba is put in charge of managing the shop while her father takes some apprentices on a trip out of town. When it turns out that her fellow apprentice Ethan is the son of the literal Devil, and that Ethan's father is on his way to earth to start the apocalypse, the two of them have to quickly come of with a way to fulfill an ancient prophecy and halt the fiendish tyrant.
This story was spawned from a reddit post made by brainthinkin on r/WritingPrompts. I've posted the prompt in the description below, though the prompt itself is a minor spoiler. As per usual, I did my own twist on the prompt, keeping the spirit of it without following it exactly.
Prompt: This is... awkward to say the least. Your roommate just frantically confessed that they're demonic royalty, and that they need a fiancé to meet their parent, the monarch of Hell, who will be here in under an hour.