Year 2130, after the third world war, large contaminated areas throughout Japan, are known as "black spots". Thick walls were used to quarantine off these "black spots". Over time, signs of life within these wastelands. Among the survivors who had been abandoned inside the black dots, labeled as "unnecessary", gained extraordinary abilities - Fire, wind, brute force, which are defined by their supernatural ability. Others, afraid of their powers, and rejected names, unnecessary.
