Supernatural: Serpent's Kin

Born from the forbidden union of the archangel that lead a rebellion against God and the first demon to ever exist, Baphomet has sought to keep herself concealed away from Lucifer, Lilith, or any angelic and demonic forces by that may search for her. She hasn't used any abilities that would draw attention to such things. Although it wouldn't be hard. Her existence has been deemed a myth by the angels for tens of thousands of years. "Heaven's Boogey-woman" the nickname she would be known as. Until fate takes an unexpected turn...someone broke Lucifer out of the box, and she's PISSED. She never though a human would be stupid enough to do so. This is bad...this is really really bad...

In this story, Baphomet joins forces with Sam and Dean Winchester to take down the Devil, despite not wanting to team up with the one who let him out. Especially since the angel Castiel and the demon Crowley will be tagging along. But while she goes through many endeavors in this mission, she suffers with her own internal war, struggling to choose between her angelic and demonic heritage. Will she overcome battle within her while maintaining to take down the one she hates the most...Satan, her own father.

Inspirations: https://supernaturalfanon.fandom.com/wiki/Nephalem_(Daughter_of_Heaven_and_Hell)