This is Captain Star, the third planet, represented by the branch of humanity on The Golden Sun.
The climate on the planet's surface has always been so cold and harsh that at temperatures below negative one hundred eighty degrees Celsius, water vapor and carbon dioxide have frozen into a white, nebulous solid. At the poles of this planet, one could even find lakes made up of organic substances like methane and ethane. These simple organic minerals are undoubtedly very beneficial for the development of humanity.
There are a total of thirty million human colonizers living one kilometer deep in the underground city of this planet.
The firelight of nuclear fusion brought endless energy and was also the greatest courage of human interstellar colonization.
