Writing Ancient Art

After a "meteor shower", the world's science and technology came to a standstill. The invasion of alien gods came with the "Sky Chasm", killing more than half of the human race. Except for the five countries in the world, the land was eroded by the chasm and was full of chasm and endless darkness. In the five remaining countries, technological development has gradually faded out of people's sight, and ancient skills and technologies have become the trend of the times. 500 Years later, technology will be even more prosperous, and the alien gods are about to return... Young Shen Yi took the pen left behind by his parents and wrote to reveal the truth about the invasion of alien gods...