Legend has it that there is an ancient country called Zhao, and the border guard named Zhang, whose name is unknown, is especially good at swordsmanship and has a courage that cannot be matched by ten thousand people, so that the barbarians will not invade for several years. One day, he suddenly disarmed and floated away, not knowing where he ended up. At that time, it was said that he was promoted to immortality.
Intention: The sword has no moral principles, it depends on the person holding the sword