The difference between real fighting and shadow fighting

The difference between real drama and movie drama lies in the purpose and quality of production.

Real fighting and shadow fighting are terms used by ancient Japanese swordsmen when making very precious knives. Knife makers will make 2-3 identical knives according to the requirements of the customizer with Fengna Jade Steel enshrined in the shrine. Finally, choose the best one as a "real fight" and deliver it to the customizer. The other 1-2, if its quality and charm are far from the "real fight", should be destroyed, but because it is jade steel, it is regarded as a sacred thing, and the knife maker can't destroy it privately, so it will be buried underground and sealed forever, and will never see the light of day. If its quality and charm are close to the "real hit", it can be given to friends with the consent of the shrine.