A Young Girl's War Between the Stars [Youjo Senki/Star Wars]

Tanya von Degurechaff finds herself meeting a violent end as the Great War comes to a close. Being X, growing bored with his chew toy, flings her soul out of his system and the universe he administers. Tanya finds herself waking up in a new universe, in a galaxy far, far away and having to start over once again. It's a long way to the top, if you want to retire early. Back by popular demand. — Description from novelcodex.org