Is there anyone who can solve the flying blade?

Very lucky people. This is a superstition in feudal times. Some people will look for a magic stick to tell their fortune, and the flying blade is a flying blade evil god called eight characters, which will lead to mass annihilation. To solve this problem, a very lucky person, that is, a noble person, must help him solve it. But all the above are superstitious statements. The answer is for reference only. Don't be blindly superstitious.