The komik and manga of Naruto form the basis. The anime expands on it, adding movement and sound to enhance the experience. But there can be some differences in how scenes are presented.
It might be a story that revolves around a mystery related to feet. Perhaps there are some strange happenings or secrets that are somehow connected to feet. And the 'novel online terbaru' part indicates that it's a newly released online novel. So it could be a modern take on an old - fashioned mystery concept.
No. Given that prostitution is illegal in Indonesia, there are no official documentaries or reports that would promote or detail the activities of prostitution. The Indonesian government is focused on suppressing prostitution, not documenting it.
Libraries can also be a great source. Librarians are usually very helpful and might be able to guide you to new novels in the 'kaki novel' category, if it exists. They may have access to databases or local collections that could contain such novels.
I'm not entirely sure which specific 'kaki novel' you are referring to. There are many new novels out there. However, if it's a relatively unknown or regional type of novel, it might be a bit difficult to give a definite recommendation. You could try checking local bookstores or online book communities where people might discuss such novels.