MAKKAPATI ...wow, the point completely flew over your head. I give up. I wasn't even talking about the main point. I already said I am not interested in how your protagonist receives blueprints or whatever. I don't care. I know he's a Mary Sue protagonist. I don't give a f if he's a otaku or not, I'm just saying he's a Mary Sue protagonist. If you want to make him an otaku or fantasy addict, be my guest.
And in Release That Witch! Roland is an engineer, which is why he knows how to read blueprints and teach people how to build. They didn't just look at the blueprints and build, Roland actually guided them step by step and taught them. And he was able to do so because he's an engineer. See, this is the problem when people think it's so easy to write. Writing is not as easy as seeing, "hey! Release That Witch! did it! Let's copy its premise and come up with my own story!" You don't magically hand-wave things into existence - people don't just magically know how to build from blueprints. It works for Release that Witch! because Roland is an engineer and it's an engineer's job to teach people how to build from blueprints. And you only mentioned your neuroscientist protagonist, you never mentioned once that there are other characters going to the fantasy world. Yet I'm supposed to read your mind and know that there will be others? See, this is why you tell everyone what you have from the start, and not give the BS "spoilers" excuse! You turn potential writers away with your generic ideas, and the ones who are willing to write usually are those who aren't that invested in fleshing out the details and writing it properly. I hope I'm mistaken and someone can write your story well, but...
Again, before you start defending your idea, I DON'T CARE HOW HE DOES IT. If you want to magically handwave a reason, fine. If you want people to magically build stuff because they saw how to in a blueprint, fine (though your understanding of what a blueprint is is clearly lacking). I DON'T CARE. They can do whatever they want, it's your story. I only raised the example to illustrate the difficulties of writing. Writing is not something that you simply get done just like that. It requires meticulate planning, research, deep thought and practice. So if people wants to write your idea (and I don't care if they do), they have to be prepared for all that hard work for something that isn't their idea, and they are doing it for free. At their own time and expense. But that's their problem, not mine. I'm not stopping them from doing anything, I'm pointing out the challenges and difficulties that you seem to just hand-wave away with your "main point". Which is not what I'm interested in.
MY POINT: So what exactly sets your story apart from other stories like Release That Witch! and all the other stories? You have yet to answer the question. WHY SHOULD PEOPLE READ/WRITE YOUR STORY? WHAT SETS IT APART FROM OTHER GENERIC MAGI-TECH STORIES?
Stop justifying with your "main point" or how he gets his blue prints or memories or his hobbies. Those are minor details, I don't care about that. I want to know why people should read your story, and what sets it apart from all the other generic isekai clones out there. I notice you did not deny my point about him revolutionizing the world or dominating it with his new system, becoming overpowered or even the harem point (yes, you never said he would, but you never said he wouldn't either). And I honestly don't care if he does or does not - TELL ME HOW IT IS DIFFERENT FROM EVERY OTHER STORY THAT USES THE SAME TROPES!