She was just the mute clerk in the Logistics Department who was always working the night shift fixing radio stations. No one knew that she had once been the "shadow needle" that made the enemy soldiers fearful. When the battle report revealed that she had sneaked into the enemy's headquarters alone, killed seventy-eight enemies with a single shot, and blew up the command center, the entire army was in an uproar. Commander Ji Xiao does not believe in divine weapons, military newspaper editor-in-chief Lu Yan smells a conspiracy, undercover Su Rui is shaken, and her former mentor Huo Chen is waiting for her to surrender with a smile. A soldier whose name has been erased, a buried truth of the war, is rewriting history between her silent fingers.