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 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.
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.
Maybe the human boy is a lost traveler and the animals initially see him as a strange creature. But as time passes, he shows his kind heart. He could learn the ways of the Pride Lands from Simba and in return, teach the animals some simple human skills, like making a simple shelter out of branches and leaves. This would create an interesting bond between the two different worlds.
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.
The human could interact with the Lion King characters in many ways. They might communicate with Simba through gestures and simple sounds at first. With time, they could develop a deeper understanding. For example, they could teach Simba about things from the human world like friendship values that are different from what he knows in the animal kingdom.
In fanfiction, a human could be a magical being who is sent to the Pride Lands to bring balance. They could interact with the different species, teaching them about things like art or music, which are foreign concepts in their world, and in turn, learn about the values of the animal kingdom like loyalty and courage.
A human in the Lion King world could cause quite a stir. First of all, the natural order of the Pride Lands would be disrupted. The animals have their own way of life based on instincts and the Circle of Life. The human might introduce new concepts like building permanent shelters or using tools. This could change how the animals view their world. They might start to question their traditional ways. For example, Simba might be curious about the human's ability to communicate complex ideas and might want to learn from them. However, some animals like Scar might see the human as a threat to his power and try to get rid of them.
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.
First, decide on the basic plot. For example, are you going to follow the general story arc of the movie but just change the characters to humans? Or are you going to create a completely new story that is only inspired by The Lion King 2. Then, create your characters. Think about how their human versions would look, act, and talk. For instance, Kiara as a human might be a brave and curious girl with long brown hair.
The human fanfiction can deviate greatly from the original. For example, the storylines can take on a more romantic or melodramatic tone. The love story between Simba and Nala as humans could involve more internal monologues and emotional turmoil. Also, the villains in human form can have different motives. Scar in human form might not just be after power for the sake of ruling, but could be motivated by money or revenge in a more human - relatable way. Additionally, the human fanfiction can introduce new characters that are relevant to human society, such as friends, colleagues, or advisors that don't exist in the animal - based original.