In the last years of Dajing, locusts plagued the land and epidemics were rampant. Beidi took advantage of the chaos and invaded. Men often contracted diseases due to their weak constitution, and the world was gradually supported by women. Su Lin, a female general from Zhenbei, without the blessing of Golden Finger, relies on her martial arts and military skills to lead her remaining troops to guard Yanmen Pass. She not only has to resist foreign enemies, but also appease the people in the food shortage. She also has to deal with the suspicion of internal female generals and the dependence of male subordinates. In this apocalyptic world where human life is at stake, Su Lin cleans up military discipline with iron-blooded tactics, resolves crises with wisdom, and gradually builds the broken border into a safe haven in troubled times. She also finds a way to survive in a desperate situation where men and women can coexist, and supports half of Dajing.
