In the endless darkness of time, a blue planet shines with a faint halo - the Earth. This is a magical planet where a variety of creatures thrive. Among them, the splendid civilization created by human beings, the ones with the highest wisdom, is amazing, and their valuable thoughts will be passed down forever. The human era is a short and glorious era, where spiritual richness and material disappearance coexist. Where will they go? No one knows.