1. The question "The commander's daughter eats barbecue" refers to the plot in the TV series Nirvana in Fire. Specifically appeared in episode 27. In this episode, Jia Zheng's government is in the hands of authoritative people. In order to protect her daughter Jia, she was arranged to live in a small manor in the suburbs. Because Jia lives in the circle of royalty, he feels very fresh about the lifestyle of some ordinary people in the manor, including barbecue food.

2. Nirvana in Fire is a historical drama, which tells the story of Mei, the protagonist, uncovering the truth step by step, rehabilitating the unjust prison and finally winning revenge in the desolate troubled times of the world. In this episode, Jia's barbecue is just one of the plots, but it is one of the important elements to shape the character and emotion.