In the year 201 of the cosmic calendar, more than 300 years ago, human beings decided to implement a new cosmic calendar in order to celebrate the development and occupation of 14 viable planets in the Milky Way. In the past 300 years, mankind has vigorously developed science and technology, bid farewell to solar energy and nuclear energy, and entered the era of spar.

The spar was discovered by the AMA company on a huge purple planet in the 12th year of the cosmic calendar, and later scientists found that it contains an unimaginably huge amount of energy. But compared to the huge nuclear reactor and clumsy solar sails, the hedron converter is much smaller, and a fist-sized hedron releases the same amount of energy as fifteen tons of nuclear fuel when fully converted.

The emergence of spar energy has made many ideas that originally only existed in zài science fiction novels become a reality, and the huge and clumsy spaceship that can only be used for transportation has become smaller and more mobile after using spar energy, and because of the small size of the spar converter, multiple converters can be installed on the spaceship. In this way, more and more powerful weapons can be supported, and the spaceship becomes a veritable space battleship.

The battle mecha, the ultimate weapon that mankind has always longed for, was also successfully developed and researched by the Mickey Machine Qì Manufacturing Company in the 103rd year of the Cosmic Calendar. Subsequently, various carriers, melee and long-range weapons, and different types of mecha were also continuously developed and produced.

Thousands of years ago, due to the extreme lack of resources and the strict pollution of the environment, human beings were forced to unite and form a human self-government committee in order to seek self-help and a new homeland. At one point, he gave up his prejudices, laid down his arms, and removed national borders, just so that this race called human beings could continue to go further. And today's existential crisis has passed, and in the face of new social problems and new power conflicts, catalyzed by more powerful weapons, the warlike nature of mankind has awakened.

The Joint Council for Human Self-Government was forced to dissolve and split into four major coalition powers: the Eastern Galaxy-Yanhuang Republic, the Northern Galaxy-Commercial Federation, the Western Galaxy-the United States-European Empire, and the Southern Galaxies of the Hundred Nations. The four major forces have divided up fourteen planets, hundreds of asteroids of various sizes, and numerous artificial bases, breeding many interstellar pirates in the edge of the universe and the chaotic regions between galaxies.

In order to gain a place in the universe and the scarce spar mines, there are often wars between the four major forces, and there are also civil wars within the forces over the distribution of resources. Due to the high level of civilization and technology, there is a lot of commercial activity between the planets. Interstellar pirates often raid cargo ships with low defenses, selling looted goods on the black market or exchanging them for essentials. What's more, some vicious gangs of thieves specialize in robbing civilian spacecraft, killing people and plundering goods.

The whole universe is burning because of the hope of mankind, and the war is raging, and every day people are crying, crying for their dead relatives, crying for the peaceful years that are gone, and crying that the beautiful world is gone. War is not what the common people want, it is just a game for some big people. They have entrusted, under high-sounding pretexts, countless families to the quagmire of war. As an economist in the United Kingdom of Earth Age put it: "People are as cruel to each other as wolves to their prey". The world of the gods behind the high level of material civilization is so pale. In this era far from peace and justice, the vast majority of people living in the lower strata can only struggle. However, in this black universe, there is still the last pure land of Zài - the flower capital.

Huadu, as its name suggests. It is the world of flowers, the ocean of flowers, and the people who live in the flower capital are like bees, working hard and spending every day happily.

Huadu is a country built on an inverted cone asteroid, and the asteroid upper flat anomaly is a large plain of 60,000 square kilometers. The plain is covered with a hemispherical shield, under the protection of which an atmospheric environment is formed over the Great Plains, and abundant rain creates fertile land. The flowers are like chūn in all seasons, the flowers compete with each other, the colorful butterflies are flying, and the streams are overflowing, not a fairyland is better than a fairyland.

With a population of 150,000, Huadu can only be regarded as a large man-made space base in the era of the universe where the total human population has exceeded 100 billion. But because it is one of the few places where humans have found beautiful flowers since they left the earth. Therefore, it was recognized by many interstellar powers and became a member of the Alliance of 100 Nations of the Southern Galaxy.

Huadu implements a kingdom, but the king does not rule by force, but by the family's reputation and the trust of the people for thousands of years. According to legend, the creation of the flower capital of Gan. King Solo was originally the first heir to the ruler of a large alien colony. He was adventurous, sympathetic, dissatisfied with the colonial rule that was close to slavery at that time, and led thousands of people to go through a lot of hardships to finally discover the treasure of Huadu.