Xiao Yanyan (Tang Yan) is Chancellor Xiao Siwen (Liu Yi Jun) and Grand Princess of Yan’s third daughter, who is the youngest child in their household. She is not only her father’s great pride but also well looked after and pampered by her big sister Xiao Hunian (Charmaine Sheh) and second elder sister Wuguli (Lu Shan). Since her childhood, beloved Xiao Yanyan has always been a girl of character as she never hesitates to imagine, speak and act. She does not give up easily and insists on getting to the bottom of everything she is interested in. And then the three Xiao sisters become wives of Three Taizu branches respectively. Big sister Xiao Hunian’s husband is King Taiping Yansage (Tan Kai). Second elder sister Wuguli has married Yelu Xiyin (Ji Chen), and Xiao Yanyan has encountered Liao Prince Yelu Xian (Jing Chao). To defend their respective husbands, the three sisters abandon their sisterly sentiments and start to confront each other. Xian Yanyan eventually manages to help her husband Yelu Xian ascend the throne. Yelu Xian then succumbs to illness. She and Han Derang (Dou Shawn), who was her childhood sweetheart and has always been standing by her, rekindle their relationship.