Elena's sister's disruptive antics at her engagement ceremony lead to a billboard mishap, where her fiancé saves her sister instead, leaving Elena feeling like a discarded clown. Fortunately, Alexander rescues her from the chaos, and their hurried introduction sparks mutual admiration. Mistaking Alexander for a diligent mechanic, Elena must marry quickly to secure her inheritance, with him as her only option — unaware he's a billionaire CEO with far-reaching power.