Mono color censored.
The plot of this illustration is an after story of an Bad-Ending from a H-game I had made long time ago on DLsite.     She's an original character,an agent named Gaya,  Her mission is to investigate tentacle-parasited humans in a city to save the missing girls.  Somehow , some bad prison guard kidnapped her to a jail, there she was gangbanged, tried but unable to escape. Then her body was taken as a reward to comfort the prisoners who behaves well each week.

There are 2 version of stories of what happenend in this illustration. about 4000words in total.
www.pixiv.net/artworks/8525927…