I'm not entirely sure as I haven't read it specifically. But generally, if it's a fanfic, it might be about a unique place in the world as envisioned by the author who is a 'noodle fan'. It could potentially incorporate elements related to noodles in the description of the place, like a place where the best noodles in the world are made or a place with a noodle - themed culture.
Since it's called 'a place in the world by noodle fanfic', it could be about a place that has been crafted in a very unique way in a piece of fanfiction. The 'noodle' part might be a key aspect. It could be that the place has a special relationship with noodles. For instance, the main character in the fanfic might have a journey to this place in search of the perfect noodle recipe. The place could have strange noodle - related traditions, like using noodles in religious ceremonies or as a form of currency. The fanfic might also explore how this place interacts with other parts of the world in terms of noodle culture.
Well, 'a place in the world by noodle fanfic' could be about a fictional place. Maybe it's a place that only exists in the world created by the fanfic writer who has a love for noodles. It might describe the geography, the people, and the way of life there. And since it's related to 'noodle fanfic', perhaps the local cuisine is centered around different kinds of noodles. For example, there could be noodle festivals, and the economy might be based on noodle production and trade.