Forma: Forma is a planet several times larger than Earth, located somewhere in the Milky Way. Its landmasses are concentrated in the northern latitudes in a single area, so the actual land area is similar to or smaller than Earth's. Most ecosystems are similar to Earth's, and Forma is inhabited by many intelligent life forms identical to humans, and it also has a moon.

Geography of Forma: Most of the surface is covered with water, and the planet's internal density is lower than Earth's. Gravity is also similar to Earth's. The atmosphere is similar to Earth's, but the ozone layer is thicker. Because of this, the primary races of Forma were white before the ancient Libran Empire.

Oceans of Forma: There are two major oceans on Forma: the Libran Ocean and the Inanis Ocean.

Libran Ocean: A sea shaped like a lake surrounded by four continents, primarily used by ships worldwide.

Inanis Ocean: The largest sea of death on Forma. With no islands or continents in the middle, it was impossible to cross with pre-modern navigation technology. Most importantly, it is extremely dangerous as sea monsters live here. There is a ghost story about a monster called Triphus living here.

Centaura Continent: The continent where the most conflicts and wars between nations occur. It is divided into North and South by a mountain range located in the Columba zone, resulting in significant cultural differences between the two regions.

• Northern Centaura: Northern Centaura is not peaceful either, and relations between nations are not good. It includes the Republic of Ria, the Kingdom of Centauri, the United Columban Territories, and the Kingdom of Grusa.

• Southern Centaura: The most war-torn area on the Centaura continent. It includes the Antares Empire, the Kingdom of Aquila, the Cetus Empire, the Corvus Confederacy, and the Kingdom of Vega.

Hydra Continent: Mostly occupied by the Orion Republic, so there have been fewer wars. It includes the Orion Republic, Hydrus, and the Canis Federation.

• Hydrus Subcontinent: A subcontinent in the north of the Hydra continent where the nation of Hydrus is located.

• Canis Subcontinent: Half of the sovereignty belongs to the Orion Republic and the other half to the nation of Canis. It is rich in oil and mineral resources.

Libra Continent: The Libran Federation is the only nation, and it exhibits extreme weather conditions.

Ursa Continent: The Ursa Federation is the only nation.

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There are areas where technology is more advanced than reality and areas where it is less advanced. There are also differences in some historical events.

Black people face less discrimination than white people. This is because the primary ethnic group of the old Libran Empire was Black, giving them the title of "Rulers of the World." There is also a racial slur for white people, "Shiner."

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Red Duck: Far from an actual duck, it is a large theropod dinosaur classified as a terror bird. It inhabits the Cetus Empire and the Kingdom of Aquila.

Blue Stone Snake: A giant sea serpent capable of destroying a destroyer ship alone.

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Most religions follow Astrism.

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Kingdom of Aquila: A nation located on the Southern Centaura continent, it is a constitutional monarchy that believes in Aquila Astrism. As a democracy, the majority of the citizens are satisfied with the state. It generally shows a free and peaceful atmosphere with a typical temperate climate. Being adjacent to the Libran Ocean where the influence of Burnhall reaches, it is warmer than the southwestern regions, and spring and summer are said to be slightly longer than winter and autumn.

• Capital: Volucris
• Largest City: Talona
• Language: Libran
• King: Lucas Silva
• Prime Minister: Prime Minister Evan Leonard Pauly
• Currency: Corona
• Military: Royal Aquilan Army
• Silva Dynasty: The royal family of Aquila. Even after the transfer of governing power, their status and position are guaranteed, and the Silva royal family continues to serve as the head of state to this day.