Well, in such a fanfic, Naruto seeing Hinata in heaven could be a really emotional moment. It might start with Naruto being confused about where he is and then suddenly spotting Hinata. Their encounter could lead to a heart - to - heart conversation. Maybe they would talk about their past, their dreams, and how they felt about each other all along. It's a great concept for a fanfic as it gives an opportunity to expand on their relationship in a more spiritual and emotional setting.
There are a lot of things that could occur. Naruto and Hinata could start a new adventure in heaven. They could meet other deceased friends and have a big reunion. Their relationship could deepen even more as they are free from the dangers and politics of the Ninja world. They might also be given some sort of special task or mission in heaven, which would bring them even closer together while they complete it.
Naruto might be shocked at first. He could stand there frozen, unable to believe what he's seeing. His face would probably show a mix of confusion and hurt.
Naruto and Hinata's date could start with Naruto being a bit nervous. He picks Hinata up at her place. They go to a local park. Naruto tries to show off a little by doing some cool ninja moves on the trees. Hinata blushes and tells him how amazing he is. Then they sit on a bench and share some dango. Naruto listens intently as Hinata talks about her day at the hospital. It's a simple but sweet date.
One possible plot twist could be that Hinata is kissing someone as part of a mission. Maybe she has to pretend to be in love with a character to gain information. Naruto, seeing this, initially misunderstands but then later discovers the truth and respects Hinata's dedication to the mission.
She might immediately go to comfort him. Hinata has always cared deeply for Naruto, so seeing him cry would likely trigger her protective and empathetic side.
He would be filled with a deep sense of grief. Naruto has always cared about Hinata, and her death would be like a part of him has been ripped away. He might isolate himself for a while, blaming himself for not being able to protect her. But eventually, he would use his pain as motivation to get stronger and fight against whatever caused her death.
Well, in some fanfictions, when Naruto sees Hinata in the waterfall setting, it could be a moment of sudden realization. He might finally notice her in a new light, perhaps seeing her beauty and the depth of her feelings for him more clearly. It could be a turning point where he starts to develop deeper romantic feelings for her.
One possible plot could be that Hinata accidentally stumbles upon Naruto's memories during a mission. Maybe they are in a strange place where memories are made visible, and Hinata starts to understand Naruto on a much deeper level. She sees his lonely childhood, his determination to be recognized, and his dreams for the future. This newfound understanding could strengthen their relationship and make Hinata more determined to support Naruto in his goals.
I'm not sure specifically as there could be many different versions of such a fanfic. But generally, it might involve Ciel's journey to heaven, perhaps his experiences, the people or entities he meets there, and how he copes with this new environment.