A human child can fit into The Lion King's world in fanfiction in multiple ways. Firstly, through a magical connection. Maybe a magical portal brought the child there. Once in the Pride Lands, the child could adapt by learning the language of the animals, either through some magical ability or by patiently observing and mimicking. The child could also fit in by participating in the traditions of the animals. For example, taking part in the celebration of the new cubs or helping during the migration. This way, the human child becomes an integral part of the world of The Lion King.
The human child can fit in through friendship. For example, making friends with the young cubs like Simba. They can learn from each other, with the human child sharing stories of the human world and the cubs teaching about the ways of the jungle. Another way is by having a special purpose. Maybe the child is there to help heal a rift between different animal groups in the Pride Lands.
In fanfiction, a human child could fit into The Lion King's world by being a sort of bridge between two worlds. Since the child comes from the human world, it might have knowledge or skills that are useful in the Pride Lands. For instance, if there's a drought, the child could use basic survival skills learned in the human world to find water sources. Also, the child could be seen as a symbol of hope. The animals, which are used to their own kind, might initially be skeptical but gradually accept the child as part of their community when they see the good it can do.
A human can fit in by being a lost traveler. For example, a human could be on an expedition in Africa and accidentally stumble into the Pride Lands. They would then have to learn the rules of this new world quickly. Another way is if the human has a special gift, like being able to communicate with animals. This would allow them to interact with the Lion King characters easily. The human could also be a spirit guide of sorts, sent to help the lions during a difficult time.
Perhaps the human boy is brought to the Pride Lands by a magical force. He has a unique ability, like the power to communicate with all animals, not just the ones in the Pride Lands. This ability allows him to bridge gaps between different animal groups and help resolve conflicts, much like Simba does, but in a different way because he's human.
The human child's character can be developed by showing their initial reaction to the strange new world of the Pride Lands. For example, they might be scared at first but then gradually become curious. Their relationships with the animals, like how they bond with Simba or Timon and Pumbaa, can also shape their character. If they have a special skill or talent, like singing in a way that attracts other animals, that can be part of their development too.
The animals in the Pride Lands would likely be very confused. The birds would fly around the child, chirping loudly as if to alert the others. The elephants might be a bit startled and keep their distance. The zebras would probably be skittish. However, if the child showed no harm, some of the more friendly animals like the giraffes might come closer to investigate. They would be trying to figure out what this strange two - legged creature is and what it's doing in their world.
The human child could be a part of a group that is exploring Africa and gets separated from them. The child stumbles upon the Pride Lands. The lions might think the child is some kind of strange cub at first. The child then learns the ways of the lions and in turn, teaches them about human things like building simple shelters. Eventually, the child helps the lions defend their territory from an outside threat.
One idea could be that a human child gets lost in the Pride Lands and is adopted by a lioness. The child grows up learning the ways of the lions, facing the same challenges as Simba did, like dealing with Scar's evil plans. Another could be that the human child has a special power, like being able to communicate with all animals in the Pride Lands, and uses it to bring peace between the lions and other species. Or perhaps the human child is a descendant of an ancient tribe that has a connection to the Pride Lands and must fulfill a prophecy to save the kingdom.
The Hogwarts professors could also play important roles. Dumbledore could be seen as a wise old figure, much like Rafiki. He could offer guidance to the animals and the Harry Potter characters alike. Snape, on the other hand, might be a bit more difficult to place, but perhaps he could be a sort of protector in the shadows, using his potions knowledge to help heal any injured animals or deal with magical threats in the Pride Lands.
Maybe the human is a scientist who has been studying a strange phenomenon that leads them to the Pridelands. They bring with them knowledge and technology that is both useful and confusing to the animals. For example, they might have a camera which the animals mistake for some kind of magic eye. The human could also use their medical knowledge to help injured animals, which earns them respect in the Pridelands.
One idea could be that the human child gets lost in the Pride Lands and is found by Simba. Simba then takes on the responsibility of protecting the child and teaching it the ways of the jungle. Another plot could involve the human child having a special ability, like being able to communicate with the animals in a unique way, which helps in solving a big problem in the kingdom. Or perhaps the child is a descendant of an ancient tribe that has a connection to the Pride Lands, and its presence awakens something long forgotten.
Maybe a kind-hearted storyteller. They have the ability to communicate with the animals in the Lion King world through their stories. The animals are fascinated by the human's tales and the storyteller uses this to bring peace and unity among different animal groups, especially during times of conflict. They could also use their stories to inspire Simba to be a better leader.