18+ Dorei Senshi Maya

Schoolgirl is kidnapped into another world to serve as a sex slave but turns out to be a mighty warrior.

A world that gets the usual Tokyo schoolgirl Maya, is clearly some kind of mix of "Star Wars" and "Lord of the Rings"
On the one hand - the typical fantasy with knights, horses, swords, castles, medieval cities in Europe and strange fairy creatures.

On the other - the opposition in the phase of the cold war between two powerful space-public entities: "Empire" and "Republic".