I Work as an Undercover Agent in Various Sects

The legend of the Thousand-Faced Man and Demon is widely circulated in the world. This person has thousands of faces and has no fixed shape. From the octogenarian with gray hair to the young boy with a yellow mouth, everyone has heard of his name. For hundreds of years, rumors about him have never ceased - some say he is a rickety old man, some say he is a woman with shadows and fragrant clothes, and even more people regard him as a god who is different from the mortal world. He seems to be everywhere, and seems to belong to no one. He can be found in the golden palaces of princes, generals, and ministers. He can also be seen in the back alleys of soldiers and dealers. All living beings in the world can be his skin. But now, this legend that has been silent for decades has resurrected in the world, spreading like a dark cloud. Those rumors, which are difficult to distinguish between true and false, grow in whispers in teahouses and wine shops, surge in the shadows of the dead of night, and quietly stir up the turmoil in the martial arts world. Everyone knows that this thousand-faced human demon appears in this world, and is definitely not a kind person. It is clearly intended to turn into a sharp blade hidden in the dark, causing harm to the world and making this peaceful world no longer peaceful.