The anime takes place in 2006, and centers on Akio Hoshigami, who due to a leg injury is forced to give up on her dream of being a track-and-field star. Akio and her friend Ayano Umisoe move on to high school together. Amidst new activities and meeting new friends, Akio gradually starts acting like herself again. Then one day Ayano suddenly disappears. 
 
(Source: Anime News Network)

Second film of Bousei no Volicia film trilogy. 

At the last stronghold of humanity, the Heavenly Crest (Astronomy) Club, Akio learns the fate of the world. Two pilots are needed to battle the two remaining Usurpers which are targeting the faded Fire of Life. During the battle against the second enemy, during the curse of happy times, the choice between the happy present and the future Akio must dedicate her soul to approaches. 

(Source: Official Site, translated)

Tags