Yane's manga / #urethra play(1)

My rating: 3/10 The smut isn't bad and the art is good but I don't like this type of plot "going crazy from pleasure". They just humiliate him and let him get raped by some monster until he loses his mind. And the culprit's reason is so damn petty TENTACLES, SCIENTISTS A group of scientists lock one of them in a glass cage and let him get raped by a tentacle moster for an experiment and to get back at him for being so strict.