Defne Topal is a young, bubbly, and naive girl who works as a waitress in Istanbul to support her humble family: her grandmother, her little sister, and her older brother, who has gotten into dangerous debt with loan sharks. Ömer İplikçi is a wealthy, disciplined, and introverted shoe designer who built his famous fashion brand "Passionis" entirely from scratch. Following his parents' death, Ömer distanced himself from his family's elitist lifestyle, preferring to keep his personal life strictly private. The driving force of the story begins when Ömer’s grandfather threatens to sell the family's luxury mansion unless Ömer gets married within six months. Desperate to keep the estate, Ömer’s manipulative aunt, Neriman, searches for a girl she can control and stumbles upon Defne. Neriman offers Defne a life-changing sum of money to pay off her brother's debt under one condition: she must become Ömer’s personal assistant, make him fall in love with her, marry him, and then disappear. Once hired at Passionis, Defne’s chaotic and authentic nature completely disrupts Ömer’s rigid, scheduled world. A profound and genuine romance sparks between the perfectionist boss and his clumsy assistant. However, as they draw closer, the "love for rent" scheme becomes a heavy psychological burden for Defne, who is tortured by the guilt of lying to the man she loves. Surrounded by office comedy, corporate sabotage, and high-society secrets, Defne and Ömer must navigate a complex maze where a transactional game risks destroying real-life hearts.