Fantasy: I Will Return from the Underworld After Ten Thousand Years

Li Mu came to the underworld ten thousand years ago, and ten thousand years later he has become the ruler of the underworld. He once transformed into a mortal and killed immortals with his mortal power! He once transformed into a forbidden curse mage and revolutionized an era! He once turned into a medical saint and saved a whole world! He travels all over the world in his avatar, just to return to the familiar world and settle the grudges from thousands of years ago! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.