I love the atmosphere. The consistent artstyle plus bgm set the mood quite well. The character visuals were incredible, and their subtle animations elevate the whole experience! Small suggestion for the chocie box, I find myself accidentally picking an option when progressing through the dialogs. I think it might be because the choice boxes are in the same place as normal text. A slight delay after displaying the options can fix this issue.
As for the story (spoilers ahead!), the main plot was easy to follow. The first half introduce a bunch of towns people that gives the protagonist her initial set of tools. The second half have various encounters with monsters, and protagonist can either follow the moral path by fulfilling a trade, or become a monster herself. I find the second option much more haunting, since you get to see her slowly turn into a monster both figuratively and physically (by putting on various parts of monster), and it fits the theme very well!
Overall, a great entry!