The Civilization of the Heavens Starting from the End of the World

In a corner of the universe, there exists an intelligent life form that calls itself human. They are an extremely small speck of dust in this universe, but they long for everything in the big universe. Perhaps this is because they don't know how high the sky is and how high it is? Human beings claim to be the spirit of all things and the leader of all spirits. They have established human civilization step by step on a planet called Earth, and they are proud of it. They think that they are great and the essence of this world. Until one day, the arrival of a group of uninvited guests began to break human dreams. This day is the day when the era changes. On this day, a great continuous story begins.