When Yvonne Carter was a child, she was a chubby girl who had a crush on the class nerd, Derek Lawson. As she grew up, her parents tricked her into going abroad and marrying a stranger. To get close to Derek, Yvonne applied for a job as his assistant. However, she accidentally inhaled an aphrodisiac and ended up spending the night with him. When Derek woke up, the beautiful "Cinderella" was nowhere to be seen. The only person in sight was the timid, plainly-dressed Yvonne, who had come to deliver documents. Derek mistakenly thought she had witnessed the previous night's events and ordered her to locate that woman. Eventually, he discovered that his "wife" was actually Yvonne, but by then, she had left in disappointment. He chased after her to the airport, where he confessed his deep love for her, and they embraced and kissed.
Ellie Devin, once the cherished eldest daughter of the wealthy Wilcox family, discovers she’s actually the fourth daughter of the Devin family. Driven by blood ties, she seeks out her real brothers, only to face cold rejection. They despise her, and the adopted daughter, Fiona Devin, frames her at every turn. Instead of defending Ellie, her brothers force her to kneel in the rain, refusing to listen. Sick and drenched, she begs to be let inside, but only Fiona emerges, mocking her cruelly before pushing her down the stairs. Left abandoned overnight, Ellie wakes with a new resolve. She fights back when falsely accused again, declaring she will no longer bow to the Devin family. Stunned, they watch as she walks away. This time, Ellie is determined to reclaim her place in the Wilcox family, where she truly belongs.
Tansy West, the eldest daughter of the West family, escapes her political engagement to Edric Byrd, the eldest son of the Byrd family, by running away during the engagement party and disguising herself as a man. In her escape, Tansy accidentally becomes Edric's bodyguard. As they spend time together, they develop feelings for each other. However, Edric, originally biased against his fiancee, mistakenly believes he has fallen for his male bodyguard, causing much humorous confusion. Tansy helps Edric deal with his malicious stepmother and his scheming younger brother. She attends a gathering in her female guise, where her brother and parents recognize her. To ensure the couple's marriage proceeds smoothly, both sets of parents knock them out and send them to the wedding venue. The male lead's younger brother is captivated by Tansy's beauty and wishes to marry her himself. During another escape attempt, Tansy and Edric discover each other's true identities. Edric begins to acknowledge his feelings for Tansy, and they confess their love for each other. With her help, Edric successfully defeats his father, regains control of the Byrd Group that rightfully belongs to his mother, and lives happily ever after with Tansy.