This is somewhat similar to the Italian and Russian mafia stories, but it revolves around the Japanese yakuza. Since it is novella length, it's not as deep as some of the others that I've enjoyed, but the H and h were strong and worked well together. There was a lot of detail on the machinations of his and her lives, more detail than in the sex scenes, which were short but intense.
The ending more of To Be Continued than a cliff hanger.
I'll be reading the next one.