I haven't read this specific fanfiction, but usually, in fanfictions about Himeno and Hayate kissing in Pretear, it might explore their relationship deeper. It could be a sweet moment of their romantic connection, perhaps a turning point in their story where their feelings are more openly expressed.
Often, the plot might include some external factors that either push them together or create obstacles. For instance, there could be a villain who tries to separate them, but their love overcomes it and the kiss is a symbol of that victory. Or perhaps there are some family or social issues that they have to deal with, and the kiss is a moment of escape from all those problems in the fanfiction.
Another aspect of the training could be mental discipline. Hayate may introduce Naruto to meditation - like techniques to help him focus his chakra more effectively. He'd also likely teach Naruto how to keep a calm head in the heat of battle, sharing his own experiences to illustrate the importance of mental fortitude.
Well, in many fanfictions, Naruto might use his chakra to heal Hayate. Since Naruto has a large amount of chakra and has learned some healing techniques over time, he could transfer his chakra into Hayate's body to repair the damaged parts.
In 'Harry Potter and Pretear Fanfiction', a frequent theme is the combination of different cultures. The wizarding culture in Harry Potter and the more fairy - tale - like culture in Pretear are blended. Love and sacrifice are also common themes. Characters may have to sacrifice something for the sake of a new friendship or to protect both worlds. And of course, the exploration of new magic and abilities that come from mixing the two universes.
Definitely. There are quite a few. However, the quality can vary a lot. Some might focus more on the relationship between characters from both universes, while others could be more about adventure. You have to dig a bit to find the ones that suit your taste. For example, I once read one where the Pretear characters visited Hogwarts, and it was really interesting to see how they interacted with the Harry Potter characters.
One common theme is loyalty. Hayate is always loyal to Nagi in the series, and this is often explored further in fanfiction. For example, how far he will go to protect her.
One great 'Nagi x Hayate' fanfiction is 'A Chance Encounter'. It beautifully portrays the relationship between Nagi and Hayate, with vivid descriptions of their interactions. The author does an excellent job of showing Nagi's dependence on Hayate in a really heartwarming way.
Another problem might be the lack of proper resources. Even if Naruto has the ability to heal, he may not have all the necessary herbs or medical equipment. In the world of Naruto, some healing requires specific items. If they are in a remote location or in a battle - torn area, getting these resources could be a huge hurdle.