Khione is a planet that people got by chance. Here, among the eternal snow and ice, human genius managed to create a small paradise. An ideal city, medicine, science, art - the colonists have everything, and there will be more. On Khione, everyone works towards a bright future and does not pay attention to the little things, for example, the snow demons that suddenly appear too close. For a disease that didn’t exist before. To inexplicable devastation. Who cares when the long-awaited guests from outer space are about to arrive?