In the Great Star Sea Era, human footprints spread all over the galaxy, and technology was extremely prosperous, but it also created extreme class divisions. The bustling inner star area is like a paradise, while the desolate waste star on the outer edge has become a disorderly area where industrial waste and genetic waste accumulate. In this universe, "star armor" is the highest individual weapon that determines status and right to survive. The "armor master" who controls the star armor is the most respected profession in the interstellar world, and the scavengers on the deserted star are engaged in the most primitive fight against the harsh radiation mutant beasts every day in order to survive.
