After losing her father, Yeonsu struggles to support her sick mother and little sister alone. Desperate for money to save her family, she accepts a life-changing offer to be the surrogate of a handsome rich man named Taegun and his infertile wife.The contract seems simple at first, but Yeonsu soon realizes she's trapped in an arrangement she’ll regret. By the time she's questioning her morality and self-worth, it's already too late to turn back. As forbidden intimacy blurs the lines, unexpected emotions begin to stir between Yeonsu and Taegun. But is anything real between them?