In the year 22XX, as humanity"s numbers plummet, the government opens its borders to species from allied planets. As a result, genetic mingling gives rise to new beings with extraordinary abilities. On his eighteenth birthday, a young man named Yuuki learns that his father is a member of the "hero" tribe while his mother belongs to a plant‑taming clan that was thought wiped out by the planet"s rapid mechanization. Consequently, Yuuki inherits powers from both lineages and feels torn, fearing that choosing one side may betray the other. He must decide which side he should aid with his unique gifts.
