Small Walkthrough can be found below~
Woahh, that was so curious! I had my reservation into thinking what kind of entity Zecharias is, I thought he could be a siren or a harpy, I had to think if there were possibly other demons that could fit the bill of having an enchanting voice like Zecharias shows himself to have, or is very much artistic.
I'm very much curious why Zecharias is quite fond of MC, does he find their physical appearance attractive, or does it have something to do with the soul, per se? Other than that. The fact that Zecharias is so focused on making sure MC is within his hands no matter, quite purposefully doing his best to manipulate the poor MC is quite chilling.
Amazing job with this one! I was thoroughly surprised when I saw the pissed off look on Zecharias' face when he broke, unable to disregard the reasonable rebutals of MC.
Walkthrough here~
Since there are lots of options, I'll only be doing a brief overview of what you gotta do.
Ending 1 - keep agreeing to the first portion of the date, such as eating and drinking making Zecharias pleased as the date goes on. Don't point out any inconsistencies or oddities surrounding you.
Ending 2 - begins to look around your surroundings and gather clues. When Zecharias' comes back from fetching you a drink, begin to choose options he can easily refute or explain making MC confused.
Ending 3 - do what Ending 2 does but instead of choosing choices Zecharias' can explain, choose the choices where he cannot explain, irrevocable proof of his lies.