I enjoyed the writing, character designs and music choices a lot. My favorite things were the character illustrations and Forcas's characterization. This is a great first game!
A few minor nitpicks:
* A few important game objects are easy to miss. Namely the save/prayer object and the books with clues.
* Being able to instantly fill the textbox by pressing X or some other key would be great.
* While not a huge deal, the columns often obstruct the view and it can get annoying if they cover something important (the nun you gotta report to in this case).
* If the candles were bigger, it would feel more impactful and satisfying to lit them up (a bit of lighting would also help). It would also make it easier to keep track of which ones are lit (this might seem dumb but it's important given the next bit).
My major issue was that the frames tanked a LOT (dipped to around 2 or 3 FPS) through most of the game (it tended to get worse the further into the church I went). I don't think it's a hardware issue since I can run most games fine/have a decent GPU.
Overall, I really enjoyed the game and I would love to see more of it or other projects in the future!