Library

The sun is aging, the stars are dimming, and a cosmic wave line separates the earth into two large spaces. Most mutated animals keep humans at the bottom of the food chain. In order to ensure living space, humans built a nine-nine-story tower and selected backlight apostles to resist mutant animals.

Various experiences in the lower world triggered by an order to ascend to immortality

Between the four realms, the years are ups and downs. You can't avoid things and mistakes, you can't avoid fate and fate.