Game currently suffers from a "critical" (kinda) bug regarding saving the progress. This has been reported multiple times, while a few people also seem to encounter problems with scenes getting skipped. It's a unique game for sure & has a lot of charm to it, but I think it needs 1 or 2 updates to be fully playable (if you don't have the time and patience to play it in 1 sitting & potentially missing out scenes, which can then ofc lead to not getting the desired ending as far as I can tell.
Yt : https://youtu.be/vEOCce4PuHE