In a sky-filled realm with drifting islands, Gran and his talking winged lizard, Vyrn, resided in the enigmatic Zinkenstill. Their lives take a turn when they meet Lyria, a runaway from the militaristic Erste Empire seeking dominion. To evade the Empire's grasp, Gran and Lyria embark on a journey across the expansive skies, clutching a letter from Gran's father directing them to Estalucia, the mystical Island of the Astrals.