The Deposed Empress's Army

Celeste Shaw, a modern military surgeon, travels through time to the Great Zhou Dynasty. Framed for treason, demoted to penal laborer in military camp, she binds to a system. She tames war horse, punishes corruption, controls plague, tracks spies. Relying on military camp, she integrates troops, reorganizes army through battles. Returning to capital, facing emperor's suspicion, she presents evidence of his crimes, establishes Great Zhang Dynasty, and ascends throne as empress.