There's Something Wrong with This Technique, I Can't Help but Look at Her All the Time

A hundred years ago, a meteorite fell and spiritual energy revived. The Xia Kingdom experienced a battle of demon invasion. After the battle, a person with great ability created the "Lamp Bearer" organization to protect the country. After a hundred years of hard work by the "Lamp Holder", monsters are rare and difficult to find in Xia Kingdom. Until 2027, Yang Han, who was suffering from cancer, accidentally discovered that there were supernatural forces in the world. In order to survive, Yang Han decided to join the "Lamp Bearer" organization. However, it is very difficult to join the Lamp Bearer. At the same time, because the traces of demons in Xia Kingdom are hard to find, the Lamp Bearer is in a very embarrassing situation and faces the risk of being disbanded. But at this time, traces of monsters and ghosts suddenly appeared again. Are the monsters resurrecting again, or is there another conspiracy?