The Demon King’s Daughter is the Hero’s Best Friend

You are the daughter of the demon king, and also the best friend of the destined hero. Choose your path: Betray your father and side with the humans? Kill your best friend before he can act? Something else? The world is yours to do with as you wish. This is my first ever scenario, so if you come across any issues, want to share your story or simply don't like it, feel free to let me know in the comments, I can take it :3