Based on the cover and summary it seems like it could be a twisted story, but I found the relationship between the two healthy. There is a lot of violence, but the lovers never use violence against each other.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Kouun No Rihatsushi