** The protagonist is a "deserter" who was betrayed by his comrades and sentenced to death by military law. At the moment of his execution, he was hit by an accidental thunderstorm, causing cardiac arrest. He was mistakenly judged dead and thrown into the Japanese morgue. There, he stole the identity of the "corpse" and started a second life hiding his identity. He doesn't have any special abilities, and his only cheat is his "dead" identity. Because he is a "dead man", he does not exist. No past, no identity, no constraints. He used this identity to build an unprecedentedly large intelligence network from scratch, using the perspective of a "dead man".
