Atlas of the universe

During a battle in the desert planet of Exax between the abyss and a squadron of citizen of the planet Aize, Kaël, an Aporiphian, wake up in a cave and meet with the citizen of Aize. He quickly learn that the Aporiphian race has been long gone and forgotten. Being the last one of his race, and the present far more developped than his era, how will Kaël adapt to this new world threatened by the abyss ?