I am unable to play the Windows version of the game. When I try to play I get a message saying "Data Folder Not Found" and "There should be 'naina_Data' folder next to the executable"
EDIT: The above issue has been fixed. The game is very interesting and ominous. Each new note piece had me wanting to find more to uncover what was going on in that letter and the world. The highlights for passageways and items felt great with the background. Well Done.