Retired special forces soldier Lin Feng (25 years old) traveled to the eve of the Marco Polo Bridge Incident in 1937 and was bound to the "Historical Witness Live Broadcast System". Modern audiences watch the real Anti-Japanese War through the "Mirror of History" APP, and rewards can be converted into physical supplies in 1937 (1 yuan = purchasing power of 1 silver dollar, rockets = 60 mortars, etc.). When the modern audience's "historical awareness" reaches a certain threshold, the "historical correction card" can be unlocked (rescuing heroes who should have been sacrificed, changing the results of local battles).
