Sadistic Madness

"When I first laid eyes on you, I bet with myself that you were well-endowed."

Strait-laced office worker Ryota, who is serious to a fault, is forced to accompany his coworkers to a very special club.
As he's waiting nervously, the androgynous and alluring receptionist Sho is the one that comes to his room.
Ryota, traumatized by a past incident, is resistant to the idea of submission, but falls prey to Sho's domineering skills in the bedroom...
Is Ryota just one step away from becoming an obedient puppy!?

(Source: Renta!)

Note: Includes an extra chapter.