The main story takes place in 2112 with five sections covering earlier events, starting ten years ago, and moving up to as five, with each year covering one of the school years at the academy. Iridium and Jet are two new students starting their first year at the academy, both having events in their past and being assigned to roommates together. The two eventually become friends, making enemies with Hornblower and Dawnlighter, and friends with Frostbite, Samson, and some of the other students. Jet especially develops more of a close relationship with one of their teachers, Night, and becomes enemies with another, Lancer. Later on the two are assigned as partners to each other to work together.
