The Heaven-Defying Eldest Lady

She was an international film star of the twenty-fourth century, but while accepting an award, she transmigrated into the body of an idiot and a good-for-nothing. What kind of messed-up setup was this?! And she even had a fiancé?! Hmph... Just wait until she makes her grand entrance and crushes every genius in her path! As a celebrated film star, her acting skills were beyond anything you petty fools could hope to match. She excelled in both medicine and poison. If you don't believe it, come challenge her! Those who follow me prosper; those who oppose me perish. Anyone who stands in my way dies, and anyone who defies me is cut down! The peerless beauty she happened to meet turned out to be the Demon Lord of another realm. He was ruthless and merciless to everyone else, yet treated her with tenderness...