Twenty-seven years after the cataclysm, the surface of Blue Star was covered by radioactive dust and ruins. The steel remains of the old civilization were rusty on the wasteland. Mechas became the ultimate reliance for survival - whether it was the old models that scavengers relied on to save their lives, or the standard mechas monopolized by the settlement controllers, or the vicious modified murder weapons in the hands of predators, the law of the jungle was written on this wasteland. Sheye, a lone scavenger with a withdrawn surname and a taciturn personality, was trying to survive on the edge of the radiation zone with an old "Iron Crow" mecha that was barely functioning. He doesn't understand tactics and doesn't like living in groups. His only obsession is to repair the iron crow, find the "oasis core" that is rumored to be able to purify radiation, and find out the truth about the disappearance of his family twenty years ago. During a routine scavenger hunt, he accidentally picked up a mecha core fragment containing unknown energy. Not only did he attract the pursuit of the predators "Iron Blade Group", he was also targeted by the mysterious "Black Stone Settlement". The hidden dangers of the old mecha, the secrets of the unknown fragments, the game between the various forces, and the trauma hidden deep in his memory forced Sheye to break the lone wolf's survival rules. In the roar of the wasteland and the mecha, he struggled to survive while piecing together the buried truth. But he didn't know that behind this fragment, there was a secret that could subvert the entire wasteland structure.
