Unknown Regions, Developer Sector, Sui Planet.
This was a planet once controlled by Mongal-Mongal, the God of Decay. Perhaps because of its remote location, or because its native species had been relatively isolated, it had not been marked on the Ssi-ruuvi Imperium's star charts and therefore had never been named.
The Ssi-ruuvi Imperium's star charts were an important basis for the Kingdom of Dawn's exploration of the Unknown Regions. However, limited by the Ssi-ruuvi Imperium's sphere of influence and technological level, the planets they had surveyed covered only a small region.
Thus, after Mongal-Mongal was eliminated, the Kingdom of Dawn's exploration of the Developer Sector often discovered planets that had previously been unknown.
Before its rediscovery by the Kingdom of Dawn, the race on Sui Planet had been silently exterminated by Mongal-Mongal. At the time, nearly every corner of the planet was covered in gray sludge—deathly still, yet teeming with life.
This sludge had formed from nearly all the planet's organisms being dissolved and devoured by Mongal-Mongal. It was rich in organic matter, making it a perfect breeding ground for life.
In fact, the sludge could not be used directly for planting. It had to be mixed with ordinary soil before it could become high-quality farmland. In other words, this sludge was the finest organic compound fertilizer.
Sui Planet's astronomical position was ideal. It was neither too near nor too far from its star, with an average temperature of around 14°c. Thus, after its discovery, Sector Governor He Ru immediately dispatched a reclamation corps and gave the planet a name with a distinctly agricultural flavor—Sui.
By now, Sui Planet had a population of more than six million. Using the ruins of the former cities as foundations, these people had quickly established twenty cities, most of which were centered on agriculture.