This is exceptional - it's amazing that you were able to crank this out in a month! By flailing about in my experimentation at first I managed to turn the nice man's cafe into a kinky BDSM sex dungeon by about the third day, but it all resulted in the good ending. The whole aesthetic of it is so sweet, I love the little sprite representations of people that come up on the sales screen :) And it's great that through meeting these characters, the (ahem) vanilla Caffie learns and appreciates their love for what they're into, and the player gets insight into these lifestyles through them.
Couple of technical things! The text speed defaulted to slow for me for some reason, so I was clicking madly a bit to get things moving (I only noticed about halfway in that it was configurable). That caused me to miss the occasional line, so I'd love it if there was a feature to skip back or review recent lines. And when you're at the end of people's relationship branches, they'll repeat their last scene again - it would be good to have the option to skip through seen dialogue.
Fantastic work :)