MTL - It’s a Stepmother, Not a Sister [70s] - Chapter 6 no loss

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

Transmigrating to a parallel universe, Ye Xiao’s spiritual and martial arts skills were awakened. He became a librarian in the martial arts library and awakened the Golden Book Divine Soul.

She fought in the Battle of Changping and witnessed the killing of hundreds of thousands. She once led the Qin Iron Calvary and battled against the Six Kingdoms. She has seen a third of the land and witnessed the breaking of mountains and rivers. The sound of a grand zither and the light of a great female emperor. A prosperous world that was forged on the battlefield. Yet, these two thousand years are forgotten from history.

- Description from Novelupdates