Series: The Vagrant #3
This was a fairly satisfying end to the Vagrant trilogy. Of course, some people don't make it and others only make it severely changed when the Seven finally wake up.
The setting is a kind of weird fantasy dystopia with technology, which makes some people call it SF although I wouldn't. The presence of what are basically demon-like creatures who take over human bodies makes it fantasy in my opinion. I didn't love it but I recognize that it was well-done and found it fairly entertaining.