Synopsis：When she learns from her husband’s first love’s sister that she is nothing more than a “third wheel” in her own marriage—the one who destroyed another couple and indirectly caused the death of his former beloved—her world collapses. Crushed by guilt and by her husband’s cold contempt, she chooses to end her life. Believing she is only throwing a tantrum, he remains indifferent and even feels relieved by her disappearance. Only later does he slowly realize how deeply he loves her. By the time he finally starts searching, he is told she is dead. In truth, she survived her suicide attempt and has been living in secret in another city. The malicious sister, desperate to claim his love for herself, carefully stages a car accident to kill her. Yet she survives again—this time losing only one part of her memory: him. Now, burdened with regret and the weight of the truth, he sets out on a long journey to win her back. Can he break through her new life, earn her forgiveness, and make her fall in love with him all over again?