I bought this game on Fakku a while back and I'm almost done completing it but I am missing one more interaction, the regretful adventurer. I think it is related to the ghost that appears in the graveyard on one of the days but I can't figure out what to do to continue the event.
Edit: I figured it out. It took some trial and error and it wasn't obvious at all so I'll put what I did here if anyone else sees this. First you have to see the fireball in the graveyard on day 1 afternoon. Then you see the fireball near the graves across from the restaurant on day 1 night. Then, on day 2 night you see the fireball again by the village entrance and you can choose to follow it (will advance time). There are two versions of this event depending on whether you picked up the dirty brooch behind the two houses in the middle of the village or not.
Also, the rope for the man in the well is in a barrel in the graveyard. That also took me a while to find.