Gu in the play is a boy with high IQ and independent mind. His dream is to be a soldier. In order to realize his dream, he gave up his superior life, enlisted in the army and joined the hard training. In the process of training, he is willing to endure hardships and is not afraid of fatigue, and he is bent on becoming the best soldier in the company.
Gao Liang is an orphan who was adopted as a child. He raised his younger brother since childhood, because he died in battle and lost his closest relatives. Therefore, he is also bent on becoming a soldier. In order to fulfill his brother's mission and last wish, he was not afraid of hardship, trained hard, often covered himself with injuries and never complained.
In addition, there is an entangled female soldier in the play, namely Jiangnan Zheng. Although she likes Gu, she also knows that his dream is to be an excellent soldier, so they both keep their love in their hearts. But sorghum also likes to travel south, and the relationship between the three people becomes very subtle. However, these have not affected the deep feelings between several people.