Dorei Senshi Maya  

Slave Warrior Maya, 奴隷戦士マヤ

A young schoolgirl named Maya is taken to an alternate reality where she must serve as a sex slave, but it turns out that she has incredible powers and becomes a formidable warrior. The world in which she finds herself is a unique blend of fantasy elements from both "Star Wars" and "Lord of the Rings," featuring knights, castles, medieval cities in Europe, and otherworldly creatures. At the same time, this realm exists during the height of the Cold War between two powerful space-faring civilizations: the Empire and the Republic.