Love Alchemy: A Heart in Winter
There are a few bugs in the English translation and gameplay is quite basic, but I would still recommend this game for its exceptional graphics, atmosphere, and storytelling. Just make sure you have a walkthrough handy if you can't figure out how to work around the bugs.
The story is not in itself very interesting, but it progresses nicely and coherently, and each new character adds something to it. The protagonist is not the usual "super mom" you tend to find in the genre. She is quite a naïve and delicate woman, but not a victim!
The game is entirely safe-for-work, but note that there is a sensual, even sexy undercurrent.
Generally, I think this game takes a few risks, which should always be applauded in this rather narrow genre.