My Evil Stepson System - Chapter 28 . Do You Think I Am Pretty? R18.

After rebirth, she, who used to be a top international spy, becomes the eldest daughter of the Fengs, a fat girl who is ugly and foolish in the eyes of the ordinary people.
Mastering Royal 18 Saber Moves and Purgatory 9 Palms, she rose to fame with the martial arts of Demon Cook.
Upon an imperial edict, she was ennobled as the wife of Lord Cen, and then suffered various intrigues and plots…
She proved herself to be a real overmatch and a true genius to the world…

“You incompetent god! I should’ve been the Alpha with big di*k, not some pitiful Omega!”—Cherion’s death was… not heroic. Winning the lottery only to die of a heart attack five minutes later was the definition of cosmic irony. But fate wasn’t done laughing at him yet. He woke up inside a tragic omegaverse novel he once read, right in the body of the pitiful omega doomed to be rejected, humiliated, and die alone.Still, he thought, “Fine. I’ll just avoid the main plot.”Except the main plot avoided him.But the script suddenly changed!Instead of being cast aside, Cherion was married off to Zarius, the empire’s greatest war hero… and the man destined to become the villain everyone feared. A cursed Alpha, praised as a savior but fated to die by the Crown Prince’s hand.Married to the future villain? Doomed.Married to a cursed Alpha? Double doomed.No, no doomed at all! He had a plan. A brilliant, flawless, absolutely desperate plan… but still a plan!“I said I’ll help you break your curse. In exchange, you let me go. Do we have a deal or not? Or are you too insecure to trust an Omega?”“Careful, little Omega. That sharp tongue of yours is daring me to test how it tastes.”

After accidentally falling, she actually finds herself bound to a Second Female Lead Counter Attacking System!