Shu Lang, a beggar from the south of the Yangtze River, met Li Qiuyan, a fireworks girl from Jiangcheng, and gave birth to twin girls. Dugu Liang, the son of the demon sword Dugu Ming, flirted with Li Qiuyan after being drunk, and was "accidentally" killed by Shu Lang. Dugu Ming avenged his son and designed to kill Shu Lang. Duguming was greedy for Li Qiuyan's beauty and used her two daughters as threats to take possession of them by force. Shu Lang's youngest daughter, Shu Qing, was stolen late one night. Dugu Ming, who was tired of playing with Li Qiuyan, used poisoned wine to turn Li Qiuyan into a vegetative state in order to hide Shu Xiao's life experience... Eighteen years later, Dugu Ming was injured by a masked heroine of unknown origin, and his name was in danger. "Daughter" Duguxiao resolutely embarked on a dangerous journey to find the medicine for the sake of her "father"'s life.