The heroine, Chen Ziyue, saw her entire family slaughtered. Fortunately, her mother’s senior fellow disciple rescued her and took her as an apprentice, setting her on a thorny path through the martial world. Amid the turmoil, she meets two men: the third prince and male lead, Zhang Bochen, who remains calm and wise in a crisis and is adept at handling complicated situations; and the second male lead, Su Hanming, a chivalrous wanderer who values loyalty and follows his heart.
Su Hanming braves a sea of flames for Chen Ziyue, leaving behind a love that lingers like an indelible longing. Zhang Bochen eventually ascends the throne as supreme ruler, yet never takes an empress. In the depths of his heart, only one shadow remains. Carrying her enduring memories of Su Hanming, Chen Ziyue walks alone to the edge of the martial world. Her solitary figure ultimately becomes an immortal legend.