Akiyume Kukuru is the third (and possibly final) game in Sumikko's 'Seasons' meta-sci-fi series.  It centers around a group of five 'Holders', people genetically altered at the embryo stage to possess possibilities that don't otherwise exist in Earth's evolution using artificial DNA and RNA known as XNA.  These five people are individuals whose actions or abilities have made them a threat to society/the government/etc., and they have been exiled to Ruruan, a closed city in Hokkaido where a