Synopsis：Iris sells her heart to a billionaire for $5 billion to help her bankrupt boyfriend Adrian rebuild his empire, surviving only on an artificial heart. To spare him lifelong guilt, she pretends to be a greedy gold-digger and walks away, secretly raising their daughter alone. Eight years later, Adrian has reclaimed his fortune, while Iris’s artificial heart is failing and she has just three months left to live. When they reunite, Adrian, blinded by resentment, cruelly torments her, unaware of her sacrifice. His scheming fiancée Karen frames Iris and even pretends to be the mysterious “heart donor.” As Iris exposes Karen’s lies and the truth finally surfaces, will Adrian realize everything in time to save her life—and their once‑in‑a‑lifetime love?