Synopsis: 

On the birthday of Guo Ziyi, the king of Fenyang, all the sons of the family came with their wives to pay tribute to his birthday, except the third son, Guo Ai, who came alone and was teased by his brothers before the banquet. Guo Ai returned to the palace, smashed the palace lamps, and kicked and punched the princess's wife, and the princess went to the palace to complain. When Guo Ziyi ties up his son, the Tang Emperor is sensible and takes the big picture into consideration, and instead of blaming him, he gives Guo Ayi an additional title. The Empress advised her son-in-law and chastised her daughter, and the young couple made up.