Broken Sword and Long Song

The rivers and lakes are in turmoil, and grievances arise again. Forces from all sides took action upon hearing the news, and the world was plunged into many puzzles of the previous dynasty. A young man with strange swordsmanship stepped into the world under the orders of his master, but he never thought that he had been used as a pawn in the world's chess game. Mysteries gradually unfold one by one, and you can't help yourself in troubled times, but in those peaceful and prosperous times, someone has to look for it...