Synopsis："Where the Sword Returns" follows the female assassin Bai Ye, who bears the burden of avenging her family's massacre. She disobeys her master's orders to carry out a personal assassination mission. After failing, Bai Ye is rescued by Hua Du and gradually develops feelings for him. However, Hua Du is the son of her sworn enemy. Meanwhile, her master Yin Ji also attempts to use her for his own purposes. Bai Ye is forced to make a choice: where should her sword ultimately belong...