In 5025, the 18-year-old heroine is reborn.
The future has experienced the baptism of meteorites and the strife of the doomsday, and has developed rapidly, with high technology and supernatural powers coexisting. However, due to the decline of human beings in the fifth year of the apocalypse, scientists created so-called orcs and human implants in order to seek space for human survival. The passing of the apocalypse coupled with breeding, human blood is no longer pure, and the new humans three thousand years later contain a variety of genes. But instead, people began to admire all kinds of "hybrid" people, just because the new mixed-blood humans showed very powerful abilities. The future society will be more open, with galaxies like countries and planets like cities, but collectively called the "Federation".