Katherine Sterling is Asher Booth's executive personal assistant and girlfriend. Upon learning that Asher's ex is about to return to the country, she decides to leave, unaware that she is already pregnant. Before her resignation, Lila Sterling sets her up by framing her for falsifying company data. Unexpectedly, Asher does not care about this matter at all, but Katherine plans to hide her identity and infiltrate the Sterling Clan banquet to investigate the case. Lila Sterling has no idea that the "romantic stand-in" rival she is targeting is the Sterling Clan young lady she has always feared. When Lila targets Katherine at the banquet, Ethan Sterling steps in to protect Katherine, triggering Asher's jealousy, and the two clash. Katherine does not want to recognize her father quickly, so the two help Katherine hide her identity for their own respective purposes. Due to work reasons, Katherine has to stay at the company, and even moves into Asher Booth's villa. Lila Sterling visits frequently, acting in a manipulative, faux-innocent manner, only to be repeatedly put in her place by Katherine, while Asher shows strong protective affection for Katherine. Lila Sterling drugs Asher Booth, fakes a one-night stand with him and pretends to be pregnant to destroy their relationship. Asher Booth has always misunderstood the relationship between Katherine Sterling and Ethan Sterling. Lila Sterling continues to stir up trouble, only to accidentally cause Katherine to successfully recognize her family, becomi