All in all it was a great game. Fairly slow getting started but the pictures are all rewarding. I did have a bit of a problem with the gallery, on the initial screen it says I have 0/16 0/12 0/16 but when I click them I have pictures in them. Also, a few pictures are still blanked out, specifically Science #16, English #12, and Gym #7.
Additionally I think you should have some form of instructions in-game instead of having to explain the game in the description.
The ending is great, but I'd be happier if it was a gallery art instead of seeing it every time I complete another sexual act. The first time should be enough.
Next is dialogue, each of the teachers says exactly three things the entire game and it's the exact same three things for each teacher. I think you should give them some variety, as well as adding dialogue to more places like the sex scenes and such.
The game is actually too easy, I hit 100 a couple times but that was because I wasn't really paying attention to the numbers. Give the numbers a bit of randomness and give the opportunity for negatives apart from the +/- of suspicion. What I mean is some actions should take away from lust or obedience, and not just continually add too it with no negatives. In my opinion with three stats(Obedience, Lust and Suspicion) each action should give a + to 1(sometimes 2 with the more intimate or difficult actions) and a - to the rest.(only using 0 when it really doesn't apply to the stat.)
And last but definitely not least, I would like to see the teachers with actual names. It lacks intimacy when you don't even know the name of the girl you're fucking, and every game can benefit from putting a name to all their characters even if it's only mentioned once. It also wouldn't hurt to name the protagonist, or give the player the opportunity to name him.
These are just the problems I found with the game everything else was fantastic and I thoroughly enjoyed the game. It has great art and a sexy concept, a little more story wouldn't hurt but that's just my opinion.