Beyond the Borders, West of the Milky Way

We humans have a long history of 15,000 years. The most important of them are nothing more than three leaps. These three major technological leaps have transformed us humans from an insignificant and weak race into a great race that can compete with other races in the galaxy. The first was the discovery of controllable nuclear fusion at the end of the 22nd century, which gave humans the ability to convert mass into energy. The second time was the Ling Tiannan particle discovered in the 23rd century, which allowed humans to master the ability to travel through space and opened the era of the great universe... However, just as there is no eternal victory for heroes, and humanity was almost completely slaughtered by alien races, the Royal Family of Great Xia entrusted me with their last bloodline... Whether to restore humanity or to live an ignoble existence, the choice is in my hands...