[Manga] Baikoku Kikan / 売国機関 / The Queen of the Opera

Eleusis

Baikoku Kikan Cover

Author: Carlo Zen
Illustrator: Yoshinao Shina
Publisher: Kurage Bunch
Books released: 9 (ongoing)
Anime adaptation: No

Synopsis (from MAL)
In the early 20th century, a small republic found itself stuck between a kingdom and an empire—both of whom wanted to manipulate the republic to suit their own needs.
In order to protect itself from both sides of the conflict, the republic created a small group of soldiers whose job it is to suppress revolution and dissent in any way possible. This is the story of the Opera House.

Why?
I'm a big fan of Youjo Senki and I'd really like to read more of Carlo Zen's work. It's a darker and more serious story with a lot of very broken characters. I like what I've read so far but an official translation would be awesome.