What a plot twist!!!!!! Like Seriously!

Dear friends,

I'm currently working on a fantasy romance story with the following premise:

A girl is taken from the human world to the demon world, only to discover she was born with a demon spirit—a manifestation of an ancient, cursed magic. The Demon Lords and the Demon King must unravel the secrets of this magic and uncover which ancient god or goddess is attempting to break free from their eternal fate.

But here’s my challenge: I’m struggling to come up with impactful stomach-turning plot twists. So, I need your help!

What are some plot twists you think would be captivating? What elements would you love to see in a fantasy romance story that would leave you feeling truly satisfied?

I’d love to hear your thoughts and ideas!

EDIT: I didn't ask for specific plot twists for the story! I didn't ask for an Exact storyline for my story! I simply asked what plot twists sound captivating to you. If you don't have something nice to say, please don't say anything at all. Cheers!