The Infinity Castle

The Infinity Castle is a absoutley phenomenal idea. The concept of a fortress that stretches on forever, that can change it's own gravity, that when the heroes enter it, they're completly at the mercy of the villians is such an insanley awesome concept. (It's design too man, like, that scene in the SSVa (Swordsmith Village arc where Akaza flies through it is so good!!!!!) But, its got problems.

So, this thing can open portals practically anywhere, right? Literal minutes after Gyutaro's death, all the Upper Moons are immediatly teleported to the castle. Akaza's shock in the SSVa shows that this happened very fast.

In the Hashira Training Arc, it's implied (note: not even confirmed, just implied) that the only restriction on Nakime's powers is the requirment of knowing where the one she needs to teleport is. She needs the exact location.

We also see her teleport Gyokko, and Hantengu to the SSV within seconds of learning where they wanted to go.

The only other things of note is that Nakime is in full control of inside of the dimension, and when shedies, the Infinity Castle explodes out of the ground and into the dilapitated town that the final battle against Muzan takes place.

These are the only examples (in the original 23 volumes + the anime, excluding any other material) of how the Infinity Castle works.

So I assume that Nakime's powers only require a location of the one being teleported, and the destination for which they are being sent. The actual location of the Infinity Castle seems irrelevant.

I make this post to answer the following question: Why the hell doesn't Nakime just use her insanley overpowered abilities to stop any major event in the entire series?

Why not teleport Tanjiro and Kokushibo into the Infinty Castle right before he beheads Enmu, Hantengu, or Gyutaro? Hell, take Tengen with him. Why not? They're not beating Kokushibo without plot armor.

Why not teleport Akaza and the stragglers of the Mugen Train in their weakened states into the Inifinty Castle? Had the sun not been there, the series would've ended at Mugen Train. Tanjiro couldn't stand, Nezuko and Zenitsu were unconsious, literally the only potential threat was Inosuke, and he's not beating Akaza.

Worst of all, the only reason why Muzan knows that Nezuko is immune to the sun is because he sees Nezuko through Hantengu's eyes...WHICH MEANS HE KNOWS WHERE NEZUKO IS!!! WHAT ARE YOU DOING?!?!? CAPTURE HER ALREADY!!!!!!!!

You can control all other demons at anytime! Just take over Nakime's mind, and drop Nezuko into the castle!

I get it, it's not unreasonable to expect the audience to assume that Nakime's doors don't work in the sunlight. I can deal with that, but that doesn't excuse any of these other examples, or the dozen others I can come up with.

This post isn't here just to shit on the storytelling, I genuinly want to know, is there a stated reason (whether in the original 23 volumes or not, idc) why Muzan either chooses not to, or (for some ridiculous reason) can't do these things? Cite your source, please.

I love the concept of the Infinity Castle, and I really want to like it, but these things completly ruin it for me. Infinity Castle, lol, more like Infinity Plot-Hole.

Plz tell me there's something I'm missing. ❤️