The story of The Pink Answer revolves around a poor soul (male) that has been sold by his father to The Pink Answer, a unscrupulous company that's in the bussiness of transforming the undisireable parts of the society into sexy products to satisfy any kinks.
You're not the poor soul of the story however, but the agent dedicated to make the transformation happen, to train and prepare him to be the best thing that will come out of TPA.
This is a game heavily focus on forced sissyfication, forced feminization and transformation through the magic of the "Fempils", a drug that will (under very specific circumstances, that's where the player comes in), gradually transform a male into a sissy trans-woman.​