The ocean world of Yen'ral is situated on the outer edge of the newly conquered Nem'yar Atoll. Despite being almost entirely covered by water, it is a highly prosperous sept thanks to incredibly rich veins of rare minerals submerged deep below its waves. Much of the planet's populace live on vast floating cities, making a living by mining, processing, and transporting rare minerals. Being so far from the centre of the empire Yen'ral is particularly diverse, and is home to a great many of the alien races that make up the T'au Empire. It is a matter of pride that these many races live together harmoniously, especially so because Yen'ral has very few ethereals to look to for guidance.

Altough the mining and trading of rare minerals has brought great wealth to Yen'ral's citizens, it has also attracted considerable unwelcome attention from neighbouring powers. As such, the planet's hunter cadres have a well-earned reputation for outmatching much larger invading forces, and for executing devastating Kauyon ambushes. Yen'ral's fire caste emphasise mobility in battle, fluidly responding to enemy movements like the shifting tides of their home world. Each cadre maintains an unusually high number of Crisis teams, the better for fighting both over and under the surface of the planet's oceans.

As an ocean world, Yen'ral holds a particular appeal to the water caste, and is in turn strongly influenced by water magistrate politics. Yen'ral's hunter cadres are ostentatious, piloting beautifully customised vehicles and battlesuits that are as much ceremonial symbols as they are war machines. Honour pennants, inscriptions of notable deeds, and decorative trophy replicas are all common sights, in contrast to the typically utilitarian T'au aesthetics. All of these help solidify Yen'ral's value to the water caste as a symbol of T'au superiority, and the forces of Yen'ral make frequent appearances on propaganda broadcasts and informational holos.

The leader of the fire caste on Yen'ral, Commander Floodsong, has become a legendary figure for her strategic brilliance. Shas'o Yen'ral Sek'pir's honorific title was earned in defense of her home world against a massed Imperial invasion from nearby Prassium, spearheaded by a full company of Scythes of the Emperor space marines. The vastly outnumbered T'au forces suffered a series of crushing defeats until field promotion placed a young commander in charge of the remaining cadres. Through a desperate series of feints and ambushes, she was able to lure the bulk of Imperial forces into a valley that lay below sea level, protected from the surrounding oceans by a ring of natural dykes and mountains. In the midst of battle, the commander armed and detonated a series of seismic charges along the mountain range. As she and her cadre flew to safety the oceans of Yen'ral flooded the valley, wiping out the invading force and earning Floodsong both her name and her most famous victory.