Kaze yo, Banri wo Kake yo

Kaze yo, Banri wo Kake yo summary:

(from Baka-updates): This manga is about a girl named Mulan, who donned armor in her aged father's place and came to serve in the Sui Dynasty's expedition to Gao Ju Li (Korea). However, due to a revolt caused by Imperial corruption, there came an event which would greatly change the course of her fate!!