A Certain Scientific Path to Cultivating Demons

When despair spreads in pain, all the sarcasm, ridicule, indifference, and contempt around them, long-term despair and the need to face reality, darkness grows in the hearts of the three of them. In order to revenge the world, for the illusory eternal life, and to get everything they want, even if they transform into dark predators, even if their souls are corrupted, they must struggle forward hard, because only in this way can they get...