In the thirty-first year of Jianxing's reign, he accompanied the capital to Linjiang. Mr. Shen Zhuoqian, the accountant of Yongfeng Commercial Bank, suffered from a broken left hand and a mute throat. He slept day and night. On the eve of his sacrifice, he left only a half-word. He lost his identity, had no way out, and was left with only a broken body. The military commander forced him to be the "Old Nine" as a peripheral chess piece, and the Japanese and puppet agencies bit his tail. Even his own underground organization regarded him as a traitor. No one knows that this mute accountant has a whole set of guerrilla tactics from Jinggang Mountains to Taihang Mountains in his mind. Since his hand was broken and he couldn't hold a gun, he used abacus beads to send messages; his throat couldn't make a sound, so he knocked on the wall with Morse code. Hou Sandao's knife was placed on his adopted daughter's neck, Yingzuo Sadao's lie detector was aimed at every inch of his heartbeat, and Chen Xuejiao's rouge was wrapped in Kawashima Yoshiko's poison. On the surface, he is an informant of the military command, but secretly, he sacrifices his life for the Southern Bureau. In fact, he is playing a bigger game. When everyone forced him to hand over his 'upline list', he could only laugh in pieces - because his upline was himself. The wreckage is used as bait, and the killing game is used as a feast. From a lone wolf to a chess player, he wants to use the heads of his enemies to clear his innocence.