The second “alien race” that we met were called the “Lynea”, living machines that didn’t care much for humanity until they learned just how proficient we humans were at repairing, maintaining, upgrading, and even building new generations of the Lynea. They provided shelter against the Mollivane, which retreated away from Mankind once they learned that we were allies of the Lynea.
Then we of Mankind had a “second chance” at survival. Instead of populating just one Home-world (like we in Reality do now), we spread ourselves out amongst the stars, just not those belonging to the Mollivane. One of these worlds, Heaith Prime along with its many moons, is the “home” to the Kletca Empire, the Kingdom of Nyden, and the Republic of Phantasical Nova.