Alya is 15 years old, which means she is finally old enough and strong enough to attend Rift Crest School. Rift Crest is a 6-year school that prepares kids like her to eventually cross the rift and find themselves home in Harmonia once again, where everything is supposed to be perfect. However, when she gets there, Harmonia isn't exactly the place she was expecting, and its in danger of no longer being a safe haven for people like her.