Xirrinda was the home planet of the Ulla people, who lived in the planet's savannahs. The planet was known for its natural beauty, and was also covered in forests, mountains and caves. It had unique native wildlife, such as sharkwolves. Because of its beauty, the planet was turned into a major tourist attraction for scientists and schools, with destinations including Ortagon City and a hotel within a forest full of wildlife. Gellen Jenkins was once taken to Xirrinda for a Galactic Safari.
The Rain of Terror, a robotic swarm was created by the Ulla people, who intended for it to eat their sins. After raging across many planets, the creatures returned home to devour Xirrinda as well. (PROSE: Rain Of Terror)