A future in which the earth is warming up, the ozone layer is being destroyed, and harmful ultraviolet rays are pouring in. Serious shortages of food and resources due to environmental problems led to a decline in population and conflict. Nations have disappeared, and people build small villages and base their lives underground. In a world where it is difficult to production new clothes, people spend their days wearing repaired old clothes. The clothes protect the body from strong ultraviolet rays, and at the same time, they are embroidered with prayers for the animals, plants, and civilizations that once existed, as well as stories that tell of future life.