Toaru Hikuushi e no Koiuta

In order to uncover the "end of the sky," as spoken of in ancient mythology, Kal-el Albus is sent to Isla, an island in the sky. There he attends Cadoques High's Aerial Division, where he enjoys a carefree life with his schoolmates. That is...until a surprise attack by the air tribe drags Isla into a bloody war. (Source: NIS America)This is a tale of a prince who lost everything who leaves for a journey with no guarantee of returning to his hometown safely. With hatred and revenge in his mind, he meets several people that teach him about friendship… and love.