As mentioned in the description below the first page, this doujinshi is from COMIC HOTMiLK 2015-07, and I can't link it because of sadpanda. The translation is questionable and its the only English translation I found, so feel free to re-post this one if you found a better translation so this post will be deleted.
#║ ಡ ͜ ʖ ಡ ║
Does m = sub?
You have it set to m for masochism, but you should have it set to w for wall
#║ ಡ ͜ ʖ ಡ ║
Does m = sub?
You have it set to m for masochism, but you should have it set to w for wall