C1767 War, war
After Jian Wuchen came out of seclusion, he continued to train the soldiers under his command. With the addition of Jian Wuchen, the new recruits who had joined the "sword platoon" would have to live through the hardships of life.
In short, these people were tortured to the point that they didn't look human anymore. Other than the 100 veterans of the "Sharp Sword Squadron"