The story was pretty intriguing, despite the grammatical and spelling errors. I wondered what Lina meant by "purchased", that was the only thing that confused me. I could pretty much understand what the dev was trying to convey.
I like how the game had a main section needed to complete to the game, thus achieving the bad ending, while having optional sections that explained more on what happened to the previous Messengers, that would unlock the good ending.
The chess puzzle was pretty cool, and it was a bit hard to pass the Queen in the beginning since I was used to how the other chess pieces stopped me. Good work there.
The fight with Zoltan was interesting as well. I have no idea if there was a maximum amount of time the player could be injured before triggering some kind of game over, but if there was, thank goodness I didn't reach that point. XD
I like the cinematic at the fountain as well. I'm sure a lot of time and effort went into making just that one part.
Besides the passability errors (like going through the vases), I noticed one bug(?) where if you encountered Lina first, you can't find the note to trigger Zoltan's event, thus getting locked out of the good ending path.
Overall, the game is very well done. I really enjoyed it a lot. Good work. :D