Jiraiya is a source of stability. Naruto is often impulsive and emotional. When he's scared, Jiraiya's presence provides a calming influence. His calm demeanor and confident attitude can reassure Naruto that things will be okay, and they can face whatever is causing the fear together.
He also acts as a mentor. Jiraiya has a wealth of knowledge and experience. In this situation, he can use his wisdom to help Naruto understand and deal with his fear. He might tell Naruto stories of his own times of fear and how he coped, which can inspire Naruto.
Jiraiya is also a confidant. Naruto can trust him with his fear, and Jiraiya can keep Naruto's secrets. This relationship allows for a deeper bond between them, which could lead to Naruto opening up more about his feelings and Jiraiya being able to provide more targeted help.
One possible plot development could be that Naruto's fear is related to a new and powerful enemy in the Hidden Leaf Village. Jiraiya, covering for him, might train Naruto in secret to help him overcome his fear and face this threat. For example, Jiraiya could take Naruto to a secluded place and teach him new jutsu.
One possible plot development could be that Jiraiya discovers the source of Naruto's fear is related to a new and powerful enemy. He then decides to train Naruto more intensively to face this threat. For example, he might teach Naruto a new jutsu that can be used against this feared adversary.
Perhaps Naruto has just lost a fight against a powerful enemy and is feeling defeated. His crying is a result of his frustration and self - doubt. Jiraiya, covering him, then begins to train Naruto more intensively to help him overcome his weaknesses. Or it could be that Naruto has witnessed something truly horrifying in the ninja world, like a massacre. Jiraiya's act of covering him is the start of him guiding Naruto to understand the darker aspects of their world and how to face them bravely.
Jiraiya might comfort Naruto by sharing his own experiences. He could tell Naruto about the times he faced difficulties and how he overcame them. For example, he might talk about his training with the toads and how he grew stronger through perseverance.
Jiraiya's comfort gives Naruto the confidence to face his fears. For example, if Naruto was crying because he was afraid of a powerful enemy, Jiraiya's words of wisdom and support would make him more determined to train harder and find a way to defeat that enemy in the future.
Well, first of all, Jiraiya gives Naruto a sense of family. Naruto has always been an orphan, and Jiraiya steps in as a father figure. He shows concern for Naruto's growth, not just as a ninja but as a person. He encourages Naruto to be true to himself. In terms of ninja training, he doesn't just teach Naruto techniques but also the strategy and wisdom behind them. And when Naruto makes mistakes, Jiraiya is there to correct him in a patient and understanding way, which is a very important quality of a good godfather.
Jashin can also be a source of power in fanfiction. Some characters might be tempted to use Jashin - related powers, which come with a cost. This power - seeking aspect can drive the plot forward as characters make choices between power and morality.
Entropy can play a role in Naruto fanfiction by adding an element of unpredictability. For instance, it can disrupt the normal order of things in the Hidden Leaf Village. Maybe the social hierarchy starts to break down due to entropy, and Naruto has to deal with the resulting chaos.
In fanfiction, the Naruto necklace can be a plot device. It might be the key to a mystery. For instance, it could lead Naruto to a secret location.