From Refugee to Martial Arts Master

The Jiuzhou Continent has descended into chaos. Demons, monsters, and spirits run amok, while corrupt officials hold sway. Buddhist demons wreak havoc across the land, and demonic cultivators devote themselves to refining the people of the world. Confucianism, Buddhism, and Daoism each have their own paths to advancement and immense power, yet their practitioners squabble over petty gains, powerless to save the world. Meng Yuan transmigrates into this world, carrying a strange spiritual flame. Simply eating nourishes the flame, allowing him to temper his body and transform himself completely. To protect himself and pursue the Great Dao, Meng Yuan first becomes a castrator, gelding pigs and sheep. Then he uses martial arts to castrate the evils of the world. (Eastern progression fantasy, meticulous worldbuilding)