The background of the story is set on Canglong Planet, which is another world, a civilized world that is very similar to us but also has many differences. For example, there is also a college entrance examination here, for example, there is also a hometown here, for example, there is also a beloved person here. … ...... The 5,000-year civilization of Yanhuang and the 24 histories of Huanghuang are actually only four words: family, country and world, it was so in the past, it is so in the present, and it will be so in the future.