Past Events on Venus

This is an era that was earlier than the earth's civilization. It was a geological era that humans call the Proterozoic orogeny. Venus was once in a better habitable zone, and life and splendid civilizations were born. Their footprints traveled all over the solar system. What happened to such a developed civilization in the end? Now let me tell you about the history of Venusian civilization that has been forgotten by the universe. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.