Chen Weien, a modern history student, transmigrates to the Canglan Continent carrying an ancient black-iron sword, and takes over the body of a good-for-nothing female disciple with damaged spiritual roots. In a world where "women practicing swordsmanship is heresy," she draws on modern resilience, knowledge of ancient weapons, and the mysteries of her sword to overcome prejudice, advance her swordsmanship, and uncover the secrets of the sword and her bloodline. In the end, she breaks the supposed fate that women can never reach the pinnacle of swordsmanship and becomes the first female Sword Lord of Canglan.