Toaru Hikuushi e no Koiuta

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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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)