Hello and welcome to Feedback Quest 9! My name is Hythrain, and I'm one of the hosts for this lovely event! I'm also one of the streamers, so both the game and this feedback are being done live! If you want to see the see the VOD, let me know and I'll link you to it when it's uploaded to YouTube!
Being that this game is primarily a visual novel, I chose to do what I normally do for visual novels: focus on the writing to ensure lines are well written and that the logic of the story makes sense. However, I opted to not go about writing down every line I felt had a writing problem and instead just brought those things up while playing. You'll be able to see them in the VOD. Instead, I chose to focus on the story's logic and... honestly, there are some huge problems with it.
First and foremost, one of the things we learn early on is that students have to be both doctors and engineers to "work in this field." Since they'll be in this school for 10 years, I assume this means that after graduation they would then be able to "work in this field" and that the requirements given have to be obtained before you can start in this school. This would mean having a doctorate and a diploma. I also assume that when you refer to "being a doctor" you specifically mean to be a physician, as otherwise there are a myriad of fields of study that produce doctorates (which is what you need to become a doctor) where you're not a physician.
Except there are two problems here. First and foremost, it typically takes 7 years to get a doctorate to be a physician. If the characters are 28 when in their last year, this means they were 18 or 19 at the start. This means that to have a doctorate just to get into the school, they would've had to have spent years already studying both medicine AND engineering. In short, they would literally have to all be child geniuses to be where they are which is just so unlikely. So that's already a huge fail in logic.
Another problem is that when you become a physician, you have to take an oath known as the Hippocratic Oath. To boil it down, the Hippocratic Oath demands that physicians will not do anything unethical. This would include doing things that would intentionally cause harm to their patients. or even to people in general. What this story suggests is that all of these people, after becoming physicians, abandoned their Hippocratic Oath. Besides the fact that doing so would see their doctorates revoked, meaning they'd no longer be physicians and thus would no longer have the qualifications to "work in this field," this is just something that feels insulting to physicians in general. Even in the context of this story, I have a difficult time believing that these people (who, again, have to be child geniuses) would all abandon that oath. It doesn't make sense. I would recommend dropping the idea that you need to be a physician and even an engineer, and rather change it to be that you have to show an aptitude in these fields instead.
I also would argue that literally including a currently living person in the game under the idea that they also went to this school is a bad idea. Why? Because it's so easy for someone to talk about this game's story then for someone else to take that out of context and then spread misinformation about that person. Now you suddenly have a potential libel issue going on. While I appreciate and love the call back to this person's work, you would be far better off changing both the person and the things they made to something made up. You can still do things in a way to make the call back, but don't use their actual name.
Next, I would argue that a deli slicer (what you called a meat slicer) is more well known than a dough roller machine. Deli slicers are far more common and are typically seen more by the public eye. Heck, you wouldn't even use a typical dough roller for donuts but rather a donut cutter roller. Dough rollers are more for bread, pie and pastries. Also, donuts are typically fried instead of baked (they can be baked, but it's less common). Given all this, you would be better off changing it from donuts to something like tarts.
With this all covered, there are some other things I wish to give thoughts on. First, why is it that Harry is the only person in the main group who has artwork? Why don't the others? Heck, why do Marcus and the currently living person have artwork before them? Why was I asked to save early on, given a single line of text and then asked to save again?
Lastly, I know this is intended as a type of visual novel but I feel like there's no gameplay for the player. The only time we get to move around is when we visit people (speaking of, I broke the first visit room. You can walk into the wall and climb all over it. Even more confusing is that doing this is the only way to reach the water cooler), and it doesn't provide anything. You'd be better off making this game in something like Renpy, where all you'd need is the text and the artwork. At least there, there's no expectation of having some sort of control.
Finally, I'd argue that the very first idea suggested is actually a really good one. It just needs more iteration on it (No joke, I told my stream how to make that idea work way better. I won't repeat it here, but legit I had people ask me if I was a serial killer because of how quickly I improved the idea)
And that's all I got. Good luck with your game!