Since this is a fictional world so don't apply the law of physics.
Yes this world isn't not like that it's completely don't follow the law of physics or science it's followed but not completely there are some conditions where the law of science doesn't apply first, powers-
Power system: since it's a fictional fantasy novel so it's also have a power system. Like we say super natural powers. It's not so complicated to understand it's so easy to understand because The power system name is "Understanding" . Like there are no limits of understanding similarly the understanding have infinite categories. So which kind of understanding? The answer is no limitations. Let's assume a person have high understanding on Iron. Since it's a physical object so the person who have understanding on it he can create, control and destroy it. But if someone have understanding on "Time" then he can change time on his point of view. Like can see past and little future. But if his understanding on time 100% then probably he can manipulate time.
Yes there a condition to achieve this power. If someone gain 85%+ understanding on something on then he can manipulate it. And the most highest possible of achievement on understanding is 99%.
But but but if on the worst scenario if someone achieve 100% then he will achieve a state which is beyond of imagination. So let's not assume it. if it's happened on story only then we will watch and understand. And there are no limits that one man only can achieve one kind of understanding. They can achieve multiple but it's difficult not impossible.
It's the power system but power system isn't everything on a story. The most important thing on this story is characters. Characters are the heart of this story. Every characters have strong reasons. So we will see them on the story not here.
Now let's talk about story. This story is not only surrounded on it's presents. The past is the most important. The history of this story are pillars and the present story standing on it.
The story:
A word where humans are equal there knowledge leads them to their future. Which lands will they go. There are Eight lands, every lands have their own uniqueness. That's why every lands are equal. Every lands have one Elder he is not a king or a ruler he is like someone who just shows ways to his people and every Elder have 3 Guardian under them. Those Guardians are most loyal to the Elders and they are strong also. The Elders are also strong too much.
Since there are Eight lands but a central Star land is the main point of them. Everyone go one there at their adult age for a Test or Performance. This test decided their Understanding. Which lands will be better for them. But if someone not want to go then he can. He can leave freely but leads live or survive become difficult for them. Because they are not from a particular lands. It doesn't matter where or on which lands you born the test will decide your future home. The result give them 3 choices to go on a lands. They can decide or deny.
Our MC is one of them he is free he can go anywhere. Yes everyone can go anywhere but he doesn't have any burden. Yes there a place or land where anyone can't go easily.
No no our MC don't want to go on there. He just wants... Wait we will know about it on the novel chapter.
And believe me the world is truly amazing. I became so bored after seeing a round or football shape world. I'll do my best to explain everything and every situation.
But you can know about Our MC Name. His name is "Xen"