Neptune

History
A desire for the supply of diamond crystals of Neptune drove nations of Earth and their colonies to carry out an expedition to the planet in 2067. The expedition, led by the xxx energy corporation, consisted of over 3,600,000 people in total including both company employees and volunteering colonists.

Chandelier Cities
Numerous platforms were built 'hanging' from portions of Neptune's Chainsaw, on which cities were constructed. These became informally known as Chandeliers due to their appearance resembling that of a chandelier hanging from a ceiling.

Power and Mantle Settlements
A major source of power for those residing in the atmosphere is the planetary winds, which are the strongest in the Solar System. Large turbines resembling jet engines are used on power plants to harness the wind's energy.

Neptune's overabundance of diamond crystals not only provides a valuable resource for trade, but also serves as a material strong enough to build settlements in the planet's mantle.

People
Neptunians are noted for having vast physical strength and stamina, particularly among those living in the Mantle Settlements.

Mercenaries
Neptunians have gained a reputation for being a warrior race, and have been frequently employed as mercenaries. Despite this, Neptune itself seldom engages in foreign conflicts due to its distance from the rest of civilization, and consequently has adapted a largely neutral stance in astropolitics, conducting trade with both the Sol Union and the Martian nations.