The’re so much more we need to know

Im genuinely curious about the way things are turning out.
There are few things that still need an answer, for example: is everyone in the town pretending not to know Guwon is immortal? (at this point it is very obvious that Guwon is basically immortal and every time he dies his memories get erased, that explains why he’s not bothered at all when teach tries to kills him.
It also explains why he is so invested in memorizing his face, I’m convinced he wants to make sure he remembers teach when he resurrects.
Guwon looks are also a huge hint to his immortality.
His stitches makes him look like Frankenstein,
just as if he was crafted in a lab.
His eyes are pale and they glow just like all of the other maggots.
In multiple chapters they mention that his body is cold, and that he particularly enjoys the feeling of teachers warmth.
He also doesn’t seem to feel any pain when the teacher stabs him with a knife, nor when he hit himself in the head during the trial, even though he fainted shortly after). Is it really possible that the townspeople have no idea that Guwon is immortal even after knowing him for that long?
What’s also bothering me is the whole “full moon” part.
If we really think about it, Sangjun might actually be the only one that knows for sure that Guwon is immortal.
The reason I believe that, is because Sangjun is not bothered at all about Guwon’s death wish, neither he’s surprised. The only thing he cares about is knowing why the teacher is so special to him.
In chapter 40 even though he was just following orders, he left the town without a worry about Guwon’s safety. At least for a while, until he saw the full moon.
He thought about it, and then he realized something we still don’t know, and then he just panicked.
We see Guwon being unexpectedly tired, which was weird even for him.
I fear that even Guwon doesn’t know that during the full moon, he might not be immortal, and this time he could die for good. I also remind that every time Guwon feels tired sometimes bas happens to the town.
Will the author choose to make Guwon really die? Or will he somehow survive and try to regain his memories with the teacher? But what will happen to their relationship?
I highly doubt that the teacher will turn back the moment he’ll physically kill him, he already made up his mind as we saw in chapter 40. He’s willing to sacrifice the townspeople to his idealistic beliefs, but in reality he’s just seeking revenge out of selfishness. Is it really worth it though?As far as we know, Teach might have actually been the one to kill his own father, and he doesn’t really know the truth yet, but still chooses to kill Guwon.
Also I do not trust Dr Lim nor Gyeongha, i don’t think they’re genuine. They might be manipulating the teacher to get him killed, ts it’s getting kinda confusing.