Lu Chengjun, a modern retired scout, accidentally traveled to the war-torn French Concession, resurrected his body and became a watchmaker's apprentice, and awakened the "weapon supply system" - completing the mission can be exchanged for real historical weapons, from Hanyang-made to German-made war defense artillery, all of which provided help to the defenders in times of need.
Facing the Japanese invaders, Lu Chengjun used his identity as a watchmaker as a cover to form the "Dark Blade Team":
Attack the Hongkou checkpoint at night and use the Czech light machine gun redeemed by the system to tear open the Japanese defense line;
Rushing to the aid of the Zhabei garrison, a ghostly fire network was built outside the Sihang Warehouse;
Infiltrate the Japanese headquarters and use disguises and Thompson submachine guns to disrupt the gas bomb plan.
However, crises ensued:
The "Hound Squad" of the Special High School has focused on the mysterious source of arms;
The approach of female student Su Wanqiu forced him to weigh trust and concealment;
When the Dachang defense line collapsed, the system actually issued a gold-level mission - to use heavy weapons supplied within a 72-hour time limit to fight a bloody path for 100,000 soldiers and civilians!
"What this era lacks is not heroes, but a bullet when the trigger is pulled."
Lu Chengjun collided modern tactics with the historical torrent, using the system as a blade, and wrote the most tragic sniper legend on the banks of the Suzhou River.
Even if Shanghai will eventually fall, the Japanese army must remember: Every inch of China's mountains and rivers must be fought for!