Nine years ago, Jericho Keyes was taken to Jaylen Academy, a high-tech military school in which every firstborn of the kingdom must be trained to become a soldier to fight Phantoms, a race of dreadful monsters that cannot be defeated by normal means. On top of that, since the day he was taken, he can see and hear two small creatures that whisper to him to advise or mock him, Arma and Gedon, and there's a necklace with a silver crystal on his neck that nobody else can see, and he can't take it off.
All Jericho ever wanted was to be free and explore the world, but he's trapped in a place that resembles a prison more than a school, in which students are used as test subjects for experiments while they have to train for their lives in an environment of competition, and friendship is frowned upon.
Join the adventures of Jericho, Kai, Sophie, Eve, Seth, and Matthew, six young soldiers that are about to become Crystal Guardians with elemental powers to survive this epic adventure of science fiction fantasy and cosmic horror.