A carefully planned car accident left her father dead and her mother insane. Entrusted to a family friend, she was subjected to endless humiliation. Ella's life was one of profound suffering. After earning her medical Ph.D., she took a part-time job as the family doctor for S City's wealthiest man, Edward, all for the sake of revenge. She used her position to seduce him, but after they slept together, she discovered she had fallen deeply in love with him. He, however, was convinced he was just a tool for her revenge. "Take the money. If it's not enough, I can add more!" Overcome with shame, she bit her lip and replied angrily, "What do you take me for? Can't you see I love you?" He leaned forward, a hint of contempt in his cold eyes. "From what I understand, many women who actively seduce a man will say they love him afterward. Women always need an excuse for their desires." She left in a rage. Later, to retrieve her mother's keepsakes, she was forced to agree to marry another man. When Edward found out, he tormented her, driven by a love born from hatred. Life is long, and for the rest of my days, I just want to hold your hand.

An accidental stand-in, a contractual deception. He plots every move, she navigates every peril. When lines of code intertwine with matters of the heart, can a modern-day Cinderella break through the elite's tangled web and become his one true exception? Fresh out of the University of Chicago's Computer Science program, Zara Cole unwittingly steps in for her ailing senior at a programmer interview. This unexpected turn leads her to a bizarre "contractual girlfriend" agreement with Evander Becker, heir to a powerful family. Evander is desperate to escape his family's relentless pressure to marry, while Zara needs funds for her mother's medical expenses. With their own hidden agendas, mutual wariness marks the start of their arrangement. Yet, beneath the façade of their contract, Evander slowly uncovers the true brilliance beneath Zara's beautiful exterior. She's not just intelligent, kind, resilient, and diligent; she swiftly identifies and solves coding problems, bakes sweets for the less fortunate, and gracefully defuses workplace challenges. Under Evander's surprising indulgence and care, Zara transforms from a timid "Cinderella" into a clear-headed young woman capable of confronting the tumultuous world of the wealthy. But the world of the elite is a treacherous sea, fraught with danger. Evander's "green tea" ex-girlfriend, Lyssa Cole, conspires with extended family, attempting to sabotage their "marriage" with fake pregnancies and calculated business schemes. Adding to the peril, secret contenders for the family inheritance plot from the shadows, pushing Zara and Evander into the eye of the storm...