Lin Mo traveled to an ancient world similar to the Tang and Song Dynasties and became a refugee. He discovered that he could sense and control celestial phenomena on a small scale - making the rain stop, the breeze start, and the mist disperse. Each time a spell is cast, the body ages a little. What's worse is that there is a "Tianzhensi" in this world who specializes in hunting down the "demon" behind all abnormal weather phenomena. In order to survive, he can only pretend to be an ordinary farmer, struggling between pursuit and natural disasters.
