Honestly, I've seen worse writing, and the images are pretty good. I'm a sucker for heart pupil eyes.
For anyone concerned about the comments suggesting that the slave routes are masochistic in nature, I can put your fears to rest. It seems like most of the character's slave routes have you asserting dominance over them, except for the teacher's. It seems like at some point you are going to turn the tables on her though, since she seems to be getting addicted to sex acts with you in the last event.
Alot of the comments suggesting that you are the one being dominated probably refer to the teacher events, or didn't get past the first slave event for some of the characters - the first events usually have the character be angry or resistant to your advances, which might have given that impression.
Edit: If the creator is here, PLEASE take out the cleaning mechanic for the waifu house act 3. there is nothing worse than an upkeep mechanic with no payoff. Please respect your player's time by not making them go to the waifu house everyday. Or make the cleanliness go down only when you take actions in the house or something... like cleaning up after your "messes"