Houkago no Pleiades: Prism Palette(2014)

Houkago no Pleiades: Prism Palette

Subaru is a young girl who discovers that her best friend Aoi is part of magical group trying to gather engine fragments so that a little being from Pleiades star system can return to his home. Subaru considers joining them as she was chosen by the Pleiadian, president of this afterschool club.