The book by Chi Yun contains 8 documentary writings with 170 thousand words. The article of the same name tells the cherishment and pursuit for a schoolmate and comrade-in-arms. Fresh Air records the interview of ex political commissar of Shijiazhuang Military College. He is quick-minded, advanced, setting himself as example, developing the glorious tradition who is the example of soldier. From 3rd to 6th chapter, the writer talks about his personal growth and military career. There are two essays, two argumentation and poems. With different genres, the book reflects same theme.