In the distant past, many Ages back, the seven worlds of Bran were home to a powerful collection of empires, each one serving a different Divinity. The empires of each planet made frequent war with one another until, eventually, they expanded to distant worlds. Their constant warfare slowed their progress, however, and within a few centuries, they had settled into stable civilizations:

• Bran: the largest of the planets and the Mother World, Bran is home to all seven races of the Brannish folk: adal'bran, gual'bran, danu'bran, muir'bran, jise'bran, paun'bran, and shra'bran. Each race of the Brannish claimed the world, and this was the heart of their wars for millennia. In the latter Ages of their empires, Bran was home to the multi-cultural Kaere Empire whose ruling family was primarily adal'bran. It was an Earth-like planet, but with less water, rockier, drier.
• Efedece: a smaller world closer to Bran's two red suns, Efedece was the heart of the Empire of Kurruan, where gual'bran warlords ruled. A small, reddish planet with several small, rocky moons, it had a slightly thinner atmosphere, but still livable.
• Haken: a slightly smaller, warm, humid world full of small islands and rainforests, where the danu'bran Empire of Dannam had its capital. It was neighbor to Bran itself and known for its luxuriance and ostentation.
• Kiom: a colder world further out from the twin red suns, Kiom is home to the technological wonderworld of the jise'bran Empire of Relegem, which buried the icy world in asphalt, metal, and glass.
• Nuroe: a dry rocky planet with water only under the surface, home to the muir'bran Empire of Ve'enthem, their nations half-underground. The large, tan planet had a smoky atmosphere that kept many inhabitants under its surface.
• Qama: a gas giant where the paun'bran ruled the floating cities of the Empire of Inmerel, made of lost materials spun from the gaseous atmosphere and turned into crystal, glass, and strange alloys. The paun'bran were feathered Brannish folk who controlled gases with their touch, and they ruled an empire located mostly amongst the moons of Qama.
• Trohek: a fiery world, primal and hellish, where the shra'bran ruled the Empire of Senn. The shra'bran were masters of flame and destruction, and their worship of a doomsday Divine was the source of the Fall of Bran.

The dark god of the shra'bran was a vile, distant god that thrived on the destruction of worlds. When eventually they called him from his far off realm, he brought with him a swarm of destroyers, an unstoppable army that decimated not just Trohek, but all the worlds of Bran. Not only did their civilizations fall to the wave of destructive behemoths and eldritch ruiners, but their planets themselves were broken and scattered. What remains of the worlds of Bran are now fragments of worlds, supernatural pockets of lost civilizations, long forgotten. Most of the Brannish gods died, save the Bell-Armored God of the Bran Mother World, who fled to Shem with his followers. The entirety of the shra'bran and paun'bran races were wiped out, as were many other species that were completely forgotten.

Most Brannish folks who did survive left, ending up on Shem or other worlds, but some few remained behind in the fragments, eking out survival in rocky deserts, hiding from the destroyers and other dangers, getting by in harsh conditions most other races would die in. They live in the home system of their former empires, where their worlds are now a massive cloud of asteroids expanding billions of miles from their suns, some of them livable, most not.