Okay first things first, I have to say that I really like this game and all the characters. The game took a surprising (and for me a pleasant) turn to supernatural with the last update. I immediately liked the new character Detta, she's really cute and her craziness is perfect for my taste.
HOWEVER,
The MC is the worst character of this game.
There is something that bothers me so much that I ended up skipping most of the inner monologues.
Dear
Glacerose , you're making an amazing game with lively characters and an intriguing story. But the MC's stupidity becomes so frustrating that it breaks all the immersion. The first time his "naive-ness" is tolerable, but he keeps that attitude almost always. If a girl you've been fooling around with wants you to come shower with her, you don't think "I wonder why? Why does she want this? Is this a trap?". If a woman wants to give you a handjob while there is another naked girl around, you don't think "Oh my god she's gonna see us, even though she saw us naked just minutes ago and she's also naked in the same private room with us! It is embarrassing!" In the story events with Alex and Vivian, there is almost more inner monologue than real dialogues and the worst part is that the MC doesn't understand anything unless he's been told it twice or thrice, even if it is obvious. This becomes so infuriating after a while. The MC's stupidity continues with all the main story events. The inner monologues are okay as long as they're not over used and as long as they explaining something hard to understand.
We don't need to see how MC feels and thinks about every little detail because WE ARE THE MC of this game. So let us think/feel the way we want to. If you want to keep that attitude of "I am so naive I don't even get the most obvious hints unless someone yells it to my face and even then I cannot comprehend the situation fully.", at least give us dialogue options. Let your players decide if they want to be naive or witty/cool/bad-ass.
When Alex asks the MC what he thinks about Detta, give us some option to choose from. Different dialogue options and different reactions from the girls are certainly needed in this game.
For example, in Detta's event, no one would act as the MC does, no one would think what MC thinks in those scenes. I don't want to spoil anything but it is a shame that a character so delightful and cute gets that attitude from the MC.
This is my only critisism for this gem of a game, I love it, but this problem is very important and need to be addressed as soon as possible. Just look at the inner monologues of the events and you'll get what I mean. Just tone it down, more dialogues, less monologues and much much less stupidity of the MC please.
This is just a friendly critisism from a fan of your work. I hope you'll seriously consider it.