Whether you admit it or not, like it or not, there are circles in this society, and Chinese people have a stronger sense of circles. In the 1990s, four young men with different personalities, different origins, and little experience in the world came to the military camp for different motives. Their original understanding of the circle was reshaped in the environment of flesh and blood. Although they were still inconsistent in the end, the four used their own growth to tell the readers: No matter what circle they encounter, conscience is the right path and the bottom line cannot be broken. The portrayal of real life in the military camp, touching on the sensitive emotions of human nature, allows you and me to think together and move forward together.