I'm Drawing Talismans in the Wasteland

Nuclear explosion apocalypse, spiritual disaster strikes. Engineer Li Yuan climbed out of the shelter and faced a wasteland where aberrations were rampant and evil spirits were whispering. When he was forced to break into the Kunlun Research Institute, known as the "Devil's Mouth", what he found was not pre-war technology, but the skeleton of a Taoist robe and a jade slip called the "Hunyuan Taoist Code". From then on, the talisman can enchant the rifle, the spirit gathering array can provide power to the base, and the dust purification spell can purify the radioactive water. When the Powered Armor Corps of the Brotherhood of Steel approached the city, Li Yuan stood on his flying sword and hung it in the air, while rune missiles slowly rose behind him. "Everyone, times have changed." "Now is the age of cultivating immortals."