Flash Marriage with A Billionaire

On her wedding day, Elizabeth catches her fiancé cheating with her best friend. Betrayed and burdened with huge cancellation fees, she is desperate. Harold, powerful billionaire, saves her, pays off her debts, and proposes a contract marriage between her and his grandson. Elizabeth accepts to take revenge and regain her dignity. Thinking it is just a deal, she later finds the cold CEO deeply loves and protects her, secretly helping her punish enemies. In the end, she stages a gorgeous counterattack and finds true love.