Reader's preface: This is a light novel, really just a light novel! ! !
In year N of the Gregorian calendar, after the earth has experienced the destruction of several prehistoric civilizations, the environment is deteriorating day by day. When one day, the atmosphere begins to gradually dissipate, a crack opens in the sky, and disaster strikes. Demons swarm in. They have powerful power, and humans are unable to resist and are forced to live in obscurity. In An Yichu, after hundreds of years of darkness, dawn appeared. The saint of the church accidentally obtained a book of destiny, which was a gift from time. It read: When darkness invades, 22 sages are born in the world. Gather them, and the world will be reborn.