S1·E4 Episode 4

Ning Que and Sang Sang visit Zeng Manor upon entering the capital. After 15 years, Ning Que reunites with his sworn brother, Zhuo Er. They both have sworn revenge upon General Xia, who killed both of their families when they were young. At the time, they also found Sang Sang as a baby, among the dead. Princess Li meets with her father, Emperor Li