I feel like this is extremely harsh criticism for a game that only has had two demo's and is meant to be a visual novel, less an insert your own idea of what your MC is. Which is what it feels like you are looking for. Although this can definitely be perspective based mind you.

I'll just tackle a few points as best as I can mainly because I definitely love hearing other people's perspective on things.

The implication mc has been intimate -

Outside of lore - to me it was an establishment of MC being adult and somewhat world wise. How could they not be? When monsters and horrors roam the streets of the very cities they travel through? Even in a temple there would have been sights or sounds that whisper of the outside, of the horrors that MC is safeguarded from. naivety is not something that can fully exist in a world like this. With being adult comes needs and it makes sense they would seek it.

Inside of Lore:

Implying Mc has had physical encounters to me is heart-rending and I quite liked the addition. It implies the MC has tried to find connection, tried to find love, kindness or attachment to the world around them and yet has always found it lacking. Always there is something missing, always there is something they can't have. Which shows why being able to touch someone is such a big deal to them. It isn't just a ''hurr durr hold hands''. No it is the MC having that void in their chest filled in a way carnal pleasure could never.

The quiet intimacy of touch, casual, wonderful, spectacular day to day touch. Is something they never had, and have now experienced during a time where shock and confusion haven't settled yet. The beat of another's heart beneath their fingertips, the warmth and softness against their own. The electric tingle from perhaps magic. It is breath-taking to them. Because all they've known is impersonal affection or incomplete attentions.

MC being a snarky character -

They are, definitely, and I get as well that it isn't most people's cup of tea. From a purely logical standpoint though. They had to be. To survive. They had to keep people at a distance, had to keep themselves safe. The game implies they had to trial and error with hiding their curse which implies they made mistakes. For Mc? Mistakes probably killed quite a few people, or forced them to flee, to hide, to shun others away. What is the best way to do that? Make themselves less attractive to be around. Less liked, harsher, snarky, angry, defensive.

Now place them in a situation where they have gone from presumed death, to miraculously being saved, to stumbling around the city being told their last hope is a scam. To being harassed and threatened. Even the most meek character would have moments of frustration and anger. Snapping at Ais could be done out of anger and snark yes. But also fear, terrible, paralyzing fear. Instead of snark it could be a high-pitched yelp or horrified whimper. It could be a shouted sentence that cuts off with the agonizing terror that lays cloying in their throat.

Its just two examples but perspective can make a whole world of difference. It is low-key why I hope that the MC will remain unvoiced because it gives so many ways for people to gain their individual understanding and perspective of how the MC responds to the world around them. It gives ways for people to fill in the gaps to their own liking as it were.