The CEO's Undercover Wife

She hides her identity to join her own company as a newcomer, instructing the president to keep their relationship secret. Two newcomers report; she is dressed plainly, the other glamorous. Everyone mistakes the fashionable newcomer for the president's wife, favoring her, giving the real wife cold shoulder and menial tasks. The president helps her in secret. The real wife observes and plays along. The president protects her, waiting to reveal the truth.