When village herb gatherer Li Xianglan rescues injured city heir Yang Yang, she unknowingly becomes part of his revenge plot against his brother Yang Shijie. As retired city lord Bai Shumo tries to arrange a marriage between Yang and his granddaughter Bai Yushuang, Yang instead falls for mechanic Li Lanxiang. The conflict escalates when Yang Shijie poisons their father, forcing Yang Yang to return to Longcheng with his auto repair crew to reclaim his birthright.