Gleaning from the Past

I used to be a veteran who firmly believed that guns are godless, until my grandfather's relic "The Secret Technique of Shaking the Dragon Sutra" suddenly awakened in a vicious tomb on the border and pointed out the only way for me to survive. It also attracted the eyes of those in the dark who had been watching for thousands of years. Now, my brother and I are forced to open up to those forbidden places that science cannot explain. Those weird and bizarre deeds make people feel chills on their backs. Listen to me tell you slowly.