It could also be related to a prophecy or a pre - determined fate in the fanfic's plot. There might be some kind of dark prophecy that says Kawaki has to kill Naruto to prevent a greater evil. Or perhaps Kawaki is being controlled by an external force that has a vendetta against Naruto and uses Kawaki as a tool to carry out the murder.
One common theme is growth. Both Himawari and Kawaki are often depicted as growing both as individuals and in their relationship. Another theme is acceptance. Since they come from different backgrounds, fanfictions usually show how they accept each other's differences.
Yes, there are many. Some fanfics might focus on their growing relationship, like how they gradually understand and support each other. For example, in one fanfic, Kawaki and Himawari start as classmates who don't get along at first. But as they face challenges together in the ninja academy, they begin to respect and care for one another.
One great 'kawaki naruto fanfic' could be one where Kawaki has to learn a new jutsu from Naruto. In many fanfics, Kawaki is often portrayed as a complex character trying to fit into the Hidden Leaf Village. He might struggle with his past and Naruto could be the one to guide him through it.
In such a fanfiction, perhaps Kawaki is driven by some extreme ideology. Maybe he believes Naruto's way of peace is a weakness and decides to take him out to change the ninja world in a more radical way.
Another place could be some Naruto - focused forums. There are often sections where fans share their own written fanfics. You might need to register on these forums, but it can be a great way to discover unique 'kawaki naruto fanfic' that may not be on the more well - known platforms.
In this kind of fanfiction, Naruto might teach Kawaki about the values of the Hidden Leaf Village. Maybe he'd show Kawaki how to control his powers better. For example, Naruto could take Kawaki on training sessions similar to the ones he had with Jiraiya.
Kawaki might resist Naruto's teachings at first. Since he has his own way of doing things, adapting to Naruto's values and training methods could be difficult. Also, the village might not fully accept Kawaki right away, and Naruto would have to fight for Kawaki to be accepted, which is a big challenge.
It's also about the potential for character growth. In fanfics, we can see how they influence each other. Himawari might help Kawaki open up more, and Kawaki could teach Himawari about the harsher side of life. This mutual growth and the exploration of their relationship make the fanfics popular.