>Was redirected here from /a/ because I haven't been on 4chan in a long time
I am trying to find information about a light novel series called Toaru Hikuushi e no Seiyaku (Oath of a Certain Pilot).

Just so no one is confused about what I'm looking for, here is what I know already:
>I know the novels are already completed, the last volume (9) was released in November 2015
>I know the novels are part of the Hikuushi universe, and that it's the sequel of Toaru Hikuushi e no Koiuta (The Pilot's Love Song) and Toaru Hikuushi e no Tsuioku (The Princess and the Pilot).
>I know there is an anime film for Tsuioku and an anime series for Koiuta. I've seen both of them.

What I am looking for boils down to:
Plot information (general overview or synopsis of the series is fine, but I would like a volume by volume summary if possible)
Characters
World/Setting locales

I've looked everywhere imaginable for any information on this series, but no dice. Nothing. Zip. Nada. I can't read moon, and I can't afford to import the novels themselves from Japan to find out.

Any help is appreciated.