Wow, eating salted fish allows you to level up?
Xu Yang found this unexpected, but not surprising.
Combat and killing, although the main way to level up in the Sky-reaching Tower, was not the only way. Apart from battles, certain buildings, items, and skills could also provide troops with experience.
For example, barracks have training effects that can use time and resources to enhance the level of certain troops.
Some powerful lords don't even need to wage war; they could simply rely on the training facilities within their territories to muster a strong army.
However, this did not affect the superiority of the "Yellow Turban Army"; being able to level up by eating salted fish meant that as long as there was sufficient food resource, an elite army could be mustered, which was extremely useful whether for sudden conscription or emergencies.