Silent Quick Sword

The snow fell silently. A person is walking on the mountain road. There was an old sword hanging on his waist. The scabbard was polished and shiny. The black rope on the hilt had rough edges and trembled slightly in the wind. The name of the sword is "Speechless" - it doesn't mean that you don't speak, but that there are some things that don't need to be said, some words that are useless, and some words that are better left unsaid. His name is Xiao Han. Everyone in the world knew that Xiao Han owed nothing to the living or the dead. So I had to pay back the money I owed Tie Zheng for the bottle of wine three years ago. When they arrived at Zhujian Villa, Tie Zheng was already dead. A sword struck his chest, and the murder weapon was Tie Zheng's most proud sword - "Silent". The secret room is locked, and the four people testify against each other. Each person is in the other person's alibi. Xiao Han only looked at three things: the angle of the wound, the thread on the transom, and a stone tied with a knot in the snow in the backyard. Then he found the killer. But after finding the murderer, he found that he only had one question left: This sword cuts the cleanest. What about everyone else?