Ethan Falcon is the heir of the Falcon Empire, and everyone admires and desires him for being a billionaire at such a young age, all on his own. Prior to his succession, Ethan needs to be married first. So he married the most convenient girl he knew, Pennelope Lopez.

Pennelope knows the marriage she gets herself into, and because she's been loving Ethan most of her life, she agreed to marry him. But when Ethan's ex-girlfriend, his greatest love, came back, all he wanted was to marry her, but to do that, he had to divorce his marriage first.

Although Pennelope wants to fight for their marriage, she ends up signing the divorce papers after learning of her husband's affair with his ex-girlfriend. Six years later, she came back with her child, and Ethan wants her back. Will Pennelope accept her ex-husband? Or will Pennelope decline... the billionaire's regret?