Maybe an ancient sage in Naruto's own world who has long - been in seclusion. This sage has knowledge of different power systems beyond just chakra. He notices Naruto's pure heart and strong will and decides to pass on his knowledge of haki to Naruto, believing that Naruto can use it for the greater good of the ninja world.
In 'naruto haki fanfic', Haki can change the Naruto universe by adding a new layer of power. For example, it can make battles more complex as characters now have to consider both chakra and Haki. It might also change the way characters interact with each other, as those with Haki could sense things differently.
Percy often uses Observation Haki to anticipate the attacks of his enemies. He can sense their movements and intentions, which gives him an edge in combat, especially against fast - moving or sneaky foes like some of the monsters in the Percy Jackson world.
It depends on the platform or medium where the stories are published. Some might be visible indefinitely, while others could disappear after a certain period.
It depends on various factors. Some stories might remain visible for a short period, like a few days or weeks, while others could be accessible for months or even years, depending on the platform and its policies.
Haki can completely shift the power dynamics. If a character like Ron suddenly discovers Haki, he could become a much more formidable opponent. He might be able to use it to intimidate Death Eaters or other dark wizards, adding an edge to his character that wasn't there before.
In some fanfictions, Naruto might discover haki during a particularly intense battle. Maybe when facing an enemy with an unusual power that his regular jutsu can't handle, he unknowingly taps into his latent haki ability.
The 'Darkness Visible' novel is likely to be about various themes related to the concept of 'darkness'. It might explore the psychological darkness within characters, such as their hidden fears, traumas, or moral ambiguities. It could also be set in a dark or dystopian world where the characters struggle against oppressive forces or difficult circumstances.