The Pilot’s Love Song (Sub)
Watch The Pilot’s Love Song full episodes online enghlish sub
Other title: Toaru Hikuushi e no Koiuta
Synopsis: 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.
More info: myanimelist, wikipedia