Princess Astral lives in a kingdom filled with mystical creatures and magical beings, but she wants to go to a different world -- high school. The teenaged fairy longs to live in the human world with other kids her age. When she gets the chance to live with mortals, she enrolls as a freshman exchange student at Theseus High School, where she quickly befriends Tristan, Morgan and Devon. Astral, who must keep her true identity a secret, embarks on a journey made up of laughs, self-discovery and romance. There is a hitch in her plan, though, when she learns of a sinister plot that threatens her fairy kingdom. She must choose between her new life in the human world or saving her homeland, and she has 90 days to make a decision.