On the Night of My Substitute Marriage, I Discovered My Husband's Secret

In her previous life, she was married to a bankrupt old man by her family and suffered a tragic death in humiliation. When she was reborn and returned to the day of the substitute marriage, she chose to marry him - only to find out that her husband was the heir to a hidden business empire. This time, she wants to take back everything and make everyone who has hurt her kneel down and beg for mercy. And he, silently guarding her, accompanies her to counterattack from a substitute bride to a billionaire.