A thousand years ago, General Xiang Yan of the Zhou Kingdom was saved by a divine sword forged by his fiancée, Princess Feixue. After she sacrificed herself, the sword kept him alive for a thousand years. In modern times, Xiang Yan meets a woman named Xia Ning, who resembles Feixue, but she sees him as a stranger. Another woman, Liu Yiyi, is revealed to be his fiancée's reincarnation. When a wealthy second-generation heir, Xie Tianhao, finds Xiang Yan's grave, he inadvertently awakens the divine sword. As hidden enemies plot against Xiang Yan’s immortality, he embarks on a journey of love, redemption, and self-discovery.