Set during the Republican era. Dong Fang Jing Qi (Janine Chang) was brought up by her foster father who taught her about medicine. Before he dies, he tells her about the family’s enemy. To get revenge, she starts working as a maid in druggist Du Yuan Shan’s home. However, when she’s about to reach her goal, Du Yuan Shan tells her the truth about the events back then. In the meanwhile, Du Yuan Shan’s son Du Ming Hai (Liu Huan) develops feelings for Jing Qi.