In some fanfictions, there could be a group of anti - Leaf Village ninjas hiding in the Forest of Death. They see Naruto as a threat to their plans, which might involve attacking the Leaf Village or stealing its secrets. So they target Naruto when he is in the forest, leading to intense battles and chases.
He could encounter rogue ninjas. They are always lurking in dangerous places like the Forest of Death, looking for easy prey or valuable items.
Well, he might encounter rare and dangerous beasts. Maybe he discovers a hidden power source or an ancient artifact. He could also meet some reclusive and powerful shinobi who have made the forest their home.
He might have battles with strange creatures. In fanfiction, the Forest of Death is full of unknown threats. Naruto could discover new jutsus while trying to survive there.
In the fanfiction, Naruto could have adventures like finding a secret waterfall in the forest that has special chakra - enhancing properties. He might have to fight off bandits who are trying to take over the forest for their own evil purposes. And he could also meet a hermit who teaches him some new jutsu that are specific to the forest environment.
Naruto might also experience a change in his mental state. The Forest of Death is a very dangerous and unpredictable place. He could become more cautious and strategic. Instead of just charging into battles like he usually does, he might start to think more about his actions and their consequences. This would be a big step in his growth as a ninja.
One possible plot could be that Naruto discovers a hidden conspiracy within the Forest of Death that led to him being left there. Maybe some rogue ninja or a hidden enemy within the village set him up.
He might have adventures like befriending forest animals. Maybe he discovers a hidden magical spring in the forest that has special powers.
Naruto is also very popular. His never - give - up attitude and his ability to make unexpected allies are fun to write about in the context of the Forest of Death. He might find unique ways to use his shadow clones or befriend some of the forest creatures in fanfiction.
Naruto adapts by becoming one with the forest. He observes the animals and learns from their behavior. For example, he sees how squirrels store nuts for the winter and starts doing something similar with his food supplies. He also gets used to the sounds of the forest at night, which at first might have been scary but then becomes a normal part of his life. He may even start using the natural elements of the forest like vines to help him in his ninja training.
Maybe Naruto uses the Forest of Death for special training. He could set up unique challenges for his friends or even for ninja from other villages. It becomes a place where he can test new jutsus without interference.
Sasuke could be a likely candidate. He's always been somewhat jealous of Naruto's growth and popularity. In the stress of the Forest of Death, he might let that jealousy get the better of him and betray Naruto. Maybe he thinks that by getting rid of Naruto, he can be the only strong one in the team.