http://www.mangago.me/read-manga/akuma_to_issho/mh/v01/c003/1/
It's probably just an illustration for Reijin Magazine by Ayumi Kasai.
I wasn't sure if it was drawn for a novel...
http://www.mangago.me/read-manga/akuma_to_issho/mh/v01/c003/1/