On a planet called "Red Star", the human immigrant regime Tianzhuhui used a mysterious substance called "Canghuan Crystal" to build a device that can transform the atmosphere - "Huntian". In a turmoil ten years ago, the "Canghuan Crystal" disappeared, and the "Huntian" plan was forced to terminate. Ten years later, a rebel army called the "Golden Legion" suddenly appeared, and then quickly occupied the most important mining town of Tianzhuhui. The "Canghuan Crystal" reappeared and was transformed into a weapon capable of destroying the entire planet. In order to save Red Star, the two brothers Jifeng and Xinghuo of Tianzhuhui embarked on a journey to defeat the Golden Army and recapture the Canghuan Crystal. However, what awaits the two young people, in addition to dangerous crises, companions with their own thoughts, and the covered-up history of Red Star, there are also unknown secrets hidden behind his younger brother Xinghuo.