Nina the starry bride (Hoshifuru Oukoku no Nina)

Five years ago, a plague wiped out a great part of the land of Fortna's population. Nina, a girl with unique, deep-blue eyes, counts her parents among the casualties of the pandemic. In order to survive, she teams up with a pair of fellow orphans and begins to steal from the wealthy. Unfortunately, Nina's life is struck by tragedy again as she finds herself being abducted by a group of mysterious men.