Genius sniper Lin Ji (codename: Zero Point) is burdened with a fatal curse: every time he pulls the trigger, he will fall into a brief state of "trigger PTSD". From Songhu in 1937 to the ending in 1945, he walked on the edge of intelligence warfare and counter-sniper duels behind enemy lines. Facing his old enemy Hayato Kitagawa, who regards sniping as an art, Lin Ji must be torn between the cost of humanity and the instinct to kill. In this eight-year shadow sniper line, every bullet is a life-or-death salvation.