You are an airplane. Or possibly a tank, a battleship or aircraft carrier, or some other piece of military hardware.
You are also a girl, probably in the 14-20 age range.
You're probably a lesbian, either in denial, in the closet, or fully aware and enjoying every minute of it.
And, of course there is a pretty high chance that you are not wearing any pants.
Gentlemen, welcome to Mecha Musume!
This game is set in an alternate fantasy world resembling our early 20th century, where magic and advanced technology exist side by side.
The year is 1940. Modern magical science has found a way to build Machine Suits that, when worn by female magicians, robots, and spirits, transform them in Mecha Girls, that is, anthropomorphized magitek military equipment.
Don't think about that last sentence too much.
This is an anime-style roplaying game inspired by the eponymous Mecha Musume genre, such as Sky Girls, Strike Witches, Konami's action figures, and loads of fanarts.