Emma, an ordinary office employee, is working overtime during a torrential storm when a signal glitch causes her to accidentally send a flirty text message to Daniel, the company’s CEO, sparking a huge misunderstanding.
She expects to be fired after delivering a contract riddled with errors involving tens of millions in losses, but instead, Daniel treats her with surprising kindness. As they spend more time together, Emma discovers that the seemingly cold and distant CEO has secretly been in love with her for ten years. A misunderstood love letter from their high school days had caused them to miss their chance with each other for years.
When Emma is maliciously bullied and sabotaged by her coworkers, Daniel stands firmly by her side. At their wedding, he publicly announces their relationship and proposes to her with a gift of company shares.
After finally clearing up the misunderstanding from years ago, the two let go of their past grievances and begin a sweet, mutual romance that all started with one hilarious wrong-number text.