Impulse Bride's Secret Tycoon

At the female lead’s wedding, she catches her fiancé cheating and, on the spot, decides to marry a waiter instead. The waiter, in reality, is a hidden billionaire CEO who has been undercover to oversee his subordinates at the hotel. He ends up marrying her unexpectedly and is tasked with supporting her financially. Both the male and female leads are company CEOs with strong, independent personalities. Whenever the female lead’s company faces a crisis, the male lead steps in to help resolve it, using his influence and resources to support her.