After an unexpected accident, two sisters are reborn in the 1980s. The scheming younger sister envies her elder sister, who married a man with great potential in their previous lives, while her own husband died young. Determined to live a life of wealth and comfort, the first thing she does upon waking up is arrange to swap their marriages. The series follows the sisters as they struggle against each other over their destinies, interweaving sweet moments between married couples with family conflicts. It reveals the simple truth that good and evil both have their rewards, while portraying women's awakening and growth in the face of adversity, telling a heartwarming story of turning one's fate around.