In this chapter, the reader is introduced to a new character named "Number 0723," who is described as a "clever tactician" and a "intelligent strategic type warrior." He is also described as "inhuman" and "capable of breaking through the physical limits of his own body" . He is the only person in the group who has the potential to become a "Mecha operator" , a term used to describe an infantry soldier. He also has the ability to "think on his feet" and is a "brilliant soldier." The reader is told that he will receive a reward for his services after he rejoins the army, and he is told to put his scores so that they seem average together in the special class.