The instructor's secret hostility towards the male protagonist is used to reveal the danger of individual alienation in collective discipline: when "obedience" becomes inertia, the malice of power will penetrate under the cloak of "strictness", and the male protagonist's awakening and resistance are exactly the insistence that "people should not be defined by labels and objectified by power."
Purpose: Using the identity of a "prisoner of war" in military training as an incision, the instructor's secret hostility towards the male protagonist is used to explore the danger of individual alienation in collective discipline: when "obedience" becomes inertia, the malice of power will penetrate under the cloak of "strictness", and the male protagonist's awakening and resistance are exactly the insistence that "people should not be defined by labels and objectified by power."