Story
Gran is a boy born on the closed-off island of Zinkenstill.
He dreams of flying into the great skies, and strives to train hard every day with his partner, Vyrn.
The peaceful island where Gran and his friends live is suddenly filled with a thunderous roar.
As they look up in the direction of the sound, they see a warship floating in the sky and light falling from it.
Heading in the direction of the light, Gran and Vyrn go through the forest, which is forbidden to enter.
There, they meet a mysterious girl with blue hair.
The girl's name is Lyria.
For some reason, she is being pursued by the Erste Empire, a military nation.
Gran meets up with Katalina, a knight who rebelled against the empire to protect Lyria, and volunteers his help to get the two of them off the island.