Dark Martial Arts: I Swallow Gold and Become a Saint

In a fantasy world, after a major earthquake in the former Yu Kingdom, mountains and rivers shifted, dragon veins broke, rivers changed their courses, and earth evil spewed out. In the temple, the former Emperor Dayu ignored the government affairs and devoted himself to cultivating himself to become an immortal. He eventually died suddenly and was skinned and clothed by the evil demon. He toyed with the world for more than ten years, and was later killed by a Valkyrie. The Valkyrie used absolute force to reshape the world, and ascended the throne and proclaimed herself emperor, with her country named Dakun. The story begins in the year 274 of the Dakun Dynasty. The fourth generation of the Dakun Empress was young. All major affairs of the country were controlled by the great eunuch Cai Hui. All the states in the world supported their own troops. The evil spirits of the earth were further intensified. Evil spirits and ghosts emerged in an endless stream. The buried ancestors were polluted by the earth evil and turned into corpse monsters. Tigers, leopards and jackals in the mountains were cannibals and turned into monsters. They claimed to be mountain gods and earthly creatures, imprisoned villages, and demanded human sacrifices. The human order is on the verge of collapse. Cao Cheng came through time and space with a system that allowed people to gradually become stronger by eating corresponding metals. Starting from the lowest level of the refugees, he ate gold and iron, copper skin and iron bones, chalcedony and mercury blood; he slayed evil spirits, and his energy and blood were like rainbows, and wolf smoke filled the sky. Pass through three levels and twelve realms, reach the pinnacle of martial arts, formulate iron laws, and end the chaos in the world.