Earth Era

Since the first words appeared in human civilization, the great human civilization has been passed on and developed a splendid culture. But this universe was not made for human beings, and human civilization is destined to encounter one challenge after another, and encounter one crisis after another.

Asteroid impacts, gamma-ray bursts, encounters with malicious alien civilizations, and changes in Earth’s orbit caused by gravitational disturbances of other stars… There are countless challenges that may be encountered, and… as long as human beings exist long enough, human beings will definitely encounter these thing.

The story begins on an ordinary day. On this day, people suddenly discovered that the sun had dimmed…

Human civilization is about to encounter its first challenge since entering the era of civilization.