The world of espionage during the Anti-Japanese War + the protagonist awakens the power "Psychic Resonance", which can capture the "highlight/shameful memory fragments" and "illusions of future ambitions" deep in other people's souls. The protagonist is not an omnipotent mind reader, but a "soul peeper". The way he intervenes is not by reading the present, but by peeking into the weaknesses of the "past" and the direction of the "future" to change history. He must use this extremely dangerous and painful ability to complete impossible tasks in the cruelest intelligence battlefield, and in the process, save his soul and heal himself.
