In a fanfiction scenario, Naruto might be crying because he feels like he's not living up to everyone's expectations. Jiraiya comes along and uses his fan to cool Naruto off, both literally and figuratively. He then shares some wisdom about how everyone has doubts but it's important to believe in oneself, like he did when he was young.
One possible fanfiction could be that Naruto is crying after a particularly tough mission where he lost a comrade. Jiraiya finds him and offers his fan, which has a special significance. He tells Naruto about his own losses and how he overcame them, inspiring Naruto to keep going.
The plot could be that Naruto is crying due to the pressure of being the Jinchuriki. Jiraiya comforts him by saying that his strength is not just in the Nine - Tails but in his own heart. He gives Naruto the fan as a reminder of their bond and that he'll always be there for him, even if not physically.
In this fanfiction scenario, the emotional depth would be significant. Naruto crying while Jiraiya covers him could signify a moment of breakdown for Naruto. It could be that he has failed at something important, like a mission, and Jiraiya's covering is his way of saying it's okay. It could also be related to Naruto's past traumas resurfacing. Jiraiya, being the experienced and caring mentor, offers his protection both physically and emotionally. This simple act can hold a lot of unspoken emotions between them, such as trust, love, and the hope that Jiraiya can make things better for Naruto.
Jiraiya would probably offer some words of wisdom. He has a lot of life experience, so he might tell Naruto that crying is not a sign of weakness but a way to let out pent - up emotions. For example, he could say something like 'Boy, those tears are like the rain that nourishes the seeds of your growth.'
One possible reason could be that Naruto is feeling lonely. Despite having friends, he still has moments when the weight of his past, like being an orphan and ostracized in the village as a child, hits him hard. Jiraiya might see Naruto crying because of these memories resurfacing.
At first, Naruto might isolate himself. He doesn't want to be around others as he is so consumed by his grief. He just sits in his room or goes to a quiet place where he can cry alone and think about Jiraiya.
It could be that Naruto has lost a dear friend. He is overwhelmed with grief. Jiraiya comes to his side. He doesn't say much at first but just gives Naruto a big hug. Then he starts to talk about the impermanence of life and how those who are gone would want Naruto to keep moving forward and be strong for their sake.
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.
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.
One great Naruto fanfiction with Edo Tensei Jiraiya could be about him coming back during a crucial battle. He could use his vast knowledge and powerful jutsus to turn the tide. For example, he might face off against an old enemy who has now become even more powerful. His return could also have a big impact on Naruto, as he could pass on some final teachings or advice.
One possibility in a fanfiction where Jiraiya is alive could be that he returns during the Fourth Great Ninja War. He could use his vast knowledge and powerful jutsu to turn the tide of the war. Maybe he teams up with Naruto again and helps him master new forms of the Rasengan or other powerful techniques.