"Psychological confrontation under the threat of post-war trial" is the main idea. Each member of the protagonist and his dead soldier battalion will be implanted with a "false memory" before the mission: they will be re-brainwashed and convinced that they are traitors, traitors, and traitors. They can only recover their true identities after the mission is successful and "their innocence" is proven. Every time they act, they are fighting against their own "false self." And as the mission progresses, the implanted memory begins to conflict with the original personality, and even triggers a "multiple personality confrontation" type battlefield. This is not a battle with the Japanese army, but a strangulation of spirit and memory.
