Jiu Er is invited to the Empress’ banquet and meets He Yin, who is madly in love with Wen Jun. The banquet is interrupted by a disturbance in the port due to an empty boat where the Qi people have mysteriously disappeared. Jiu Er gets flashbacks of a dream she had where the boat matches the one at the port. He Yin causes trouble by announcing to the people that Jiu Er will solve the mystery of the Qi people disappearing. (Source: frankly at MyDramaList)