Mu Lanhua, the female village leader of Black Wind Ridge, comes with an infinite bomb-making system when traveling through time.
The Yellow River burst its banks and 300,000 victims starved to death. The warlord Wu Fugui exchanged relief food for guns.
She set a rule: the bullets in Heifengling will not be used by warlords who harm the people, but will only fight traitors and devils.
Zhen Renjie, an underground party member, came to the door: "I heard that your bullets don't have holes? It just so happens that my marksmanship doesn't have holes either."
Since then, there has been a pair of "long and short evil spirits" specializing in fighting Japanese invaders in the Central Plains.