It's a clicker game where you accumulate enough semen to do scenes that in turn unlock more scenes. These scenes are repeatable and change as the corruption of your slave increases, which is great. The game difficulty itself is incredibly easy since there's basically nothing that you can do wrong.
Unfortunately, there's hardly any variety: paizuri is literally the only type of sex in the entire game. To be fair, if you're into that, it will be the perfect game for you. But you have to be REALLY into it, otherwise it will grow stale.
There's at times loads of rambling and excessive dialogue. And the game takes itself, funnily enough, a little too seriously. For example, there's essentially philosophical breakdowns of destiny, free-will and a Platonic investigation of what it really means to be a so-called "titty-fucktoy," which as you can imagine is somewhat hilarious given the otherwise nonsensical nature of the game. Otherwise, the plot is actually pretty good for a porn game.
The music was pretty decent, except for the very last scene before the credits, which plays some terrible hardcore dubstep kind of track. Just took me completely out of it.
Anyway, the game's decent, but somewhat boring, unless you only want paizuri, in which case it's perfect for you.