Yang Gu traveled through the world of demons. It happened that the dynasty fell apart, demons were rampant in troubled times, and evil things emerged in endlessly. In this world, ordinary people are like lambs still being slaughtered, struggling to survive, and Yang Gu is no exception. The reason is because of this Everything in the world has been contaminated by filth. Anyone who enters cultivation, no matter the gods or demons, will pay a huge price, which has caused the distortion and abnormality of this world. Fortunately, he found that he has the power to turn everything tainted. The ability to completely purify objects can eliminate all costs. Kung Fu, spells, elixirs, magic weapons, puppets... And when he mastered a technique called 'Lamp Lighting Technique',