Since graduating from university, Roxanne Tate has lost 27 consecutive jobs for acting bravely to help others. While working at a restaurant, she catches business tycoon Harlan Hale's blind date bullying his 12-year-old daughter Mia Hale, and immediately steps in to help by splashing water on the woman. Harlan is impressed by her sincerity and straightforwardness, and offers five million to hire her as his fake wife, a stepmother to his daughter, and to help him handle the complicated relationships within the Hale Family. After moving into the Hale residence, Roxanne bursts into Mia's closed-off world with unapologetic, warm enthusiasm. Through her persistent gentle persuasion, Mia goes from silent resistance to reluctant compromise, finally finds the courage to speak, and gradually regains her confidence and self-identity. Harlan, influenced by Roxanne, also slowly realizes that money cannot solve all problems, and begins to learn how to truly accompany his daughter and build a proper family. Meanwhile, Roxanne discovers that Harlan's mother Felicia Hale comes from an elite background, but has endured years of unhappy marriage, as her husband Clint Hale endlessly prioritizes taking care of his sister-in-law Maeve Liu, leaving their marriage all but empty. Roxanne uses her own way to reignite Felicia's inner courage, helping her break free from constraints and live life on her own terms. Amidst all the chaotic daily moments, Roxanne not only heals Mia, but transforms the entire Hale Family. She
