In Zhou Xuanwang, a nursery rhyme says, "I'm tired of arcs, and I'm going to die for a few weeks.". Zuo Ru, the next doctor, has found out the woman who sold the mulberry bow, and has also put the woman to death and abandoned the market, but Zhou Xuanwang's heart is always worried that the dynasty will still perish in the hands of something. He remembered the woman who asked the doctor Du Bo to search for the mulberry bow and the grass quiver a few years ago, but there was no news for a long time, so he brought it up in the morning. Zhou Xuanwang said solemnly, "Du Bo! I remember ordering you to find that witch who hates arcs and dustpans a few years ago. Why haven't you reported it for a long time? "

Doctor Du Bo is an official with a military background. He has a straightforward character in honesty and frankness, and his speech is even more straightforward. "Since the woman who sold the sangbow fell down, I thought that the nursery rhymes were fulfilled and the evil spirits were eliminated, so I stopped disturbing the people."

Zhou Xuanwang was furious and said loudly, "Disturbing people? So you mean my orders disturbed people, right? It is obviously against your duty to ignore the king's orders like this. I will behead you today, not wronged! "

Du Bo thought he was going to die when he heard King Xuan talking like this, so he couldn't help but say loudly, "Is it disturbing the people? Everyone can see it clearly. The sage has a saying that it is ominous to kill an innocent person. " That nursery rhyme is a common rumor, which makes me scoff at the inexplicable full house of civil servants and regard it as a fairy quip, which makes my king kill innocent mountain girls. I don't want to make any more trouble, just don't want to hurt innocent people! "

At this time, someone said in a clear voice, "Although Du Bo talks a lot, he will not die!"

The ministers turned their heads and saw that the man was Du's best friend-doctor Zuo Ru.

As a result, Zhou Xuanwang killed Du by mistake and Zuo Ru by anger, and was finally killed by Du several years later.