The originally peaceful life of the Xiao family was disrupted by a man in black who came inexplicably, but it was implicated that it was the setting sun sword that disappeared in the martial arts a few years ago. The Xiao family was massacred, and the Xiao family's youngest son was seriously ill, but he wanted to avenge his parents. When he met a noble man who helped him, he became a magic sword.
But the facts are peeled off layer by layer, what exactly makes people rob, kill and take revenge like crazy. I don't know how many mysteries there are to be solved behind the scenes.
Conception: