Sooo, i just finished the game for the first time, awesome VN btw, but there's something i noticed about our favourite delivery man explanation. SPOILERS.
The old man is supposed to be one of the twelve according to Hermes and by looking at the ones who voted in favor of Asterion in the trial and taking that the letter that wasn't from Clement (the one signed with the letter "P") we can assume the old man is Poseidon.
However, the way Hermes describes the old man sometimes implies that he's talking about his father Zeus. He also refers as the old man to someone who's becoming more and more senile by the decades, which can explain why Hermes was acting odd (assuming that Zeus can control Hermes somehow, otherwise his attitude doesn't make any sense) when he found Nikos and P (Pedro, Panoptes, whatever) and also mistaking Asterion with Io, a Zeus' lover.
There's two things about this: First, Zeus voted against Asterion, why would he help him?. Also (I'm not completely sure about this), he was the one who gave Asterion the roman coin so he could talk and write any language is it not? Hera mentions him on her trial saying he was "pleasing the girl" and we can assume the girl is Athena, so was she somehow manipulating him? I hope this doesn't end up in another one of zeus' loving affairs or that would be very sad...
And second: who wrote the letter then? At the end it says "sorry for not being good enough" which can be kinda related to Zeus being manipulated by Athena in the trial, but the signature kinda kills that idea. Signed by "P". The only "P" we know so far are Pedro, his dad and his grandfather.
Also, Hermes says that Clement was the one who sent that letter to the hotel, which in his explanation he doesn't know why did he lie about it. That can correlate with both Zeus controlling Hermes and Zeus being manipulated by Athena.
A lot of asumptions (and rambling) huh... but there's nothing that can confirm any of this in the game, or at the very least i didn't find it.
In short, why did Hermes acted so odd when he found Nikos and P and who's the old man he was refering to in his explanation?