C884 Master's Sword

What's a sword?

From ancient times until now, perhaps tens of thousands of people have asked this question, and everyone's answer is naturally different. Then what did Tang Weiji want to hear? Or, what did the Yellow Butterfly Immortal Sword in the restriction want to hear?

What was a sword? The sword was the murder weapon, the shell of ordinary iron, the body of an atom, the king of weapons