In 1938, with the smoke of the Songhu Battle still lingering, modern Sichuan programmer Wang Hao accidentally traveled to the 108th Battalion of the 36th Division of the Sichuan Army and became the battalion commander of the "Straw Shoe Battalion" on the verge of destruction. After being bound to the "Anti-Japanese War and National Salvation System", he found that every task he completed - from seizing Japanese telescopes to cracking poison gas codes - would trigger a deeper spy vortex: