Obviously, Naruto is one of the main characters since it's about him knowing the Hiraishin. Kakashi could also be an important character as he has some knowledge of the technique as well. And his friends like Sasuke and Sakura might also be involved, as they often play important roles in Naruto's adventures and could be affected by his use of the Hiraishin.
Well, one possible interesting plot could be Naruto using the Hiraishin in unexpected ways during battles. For example, he might use it to quickly counter an enemy's attack that was thought to be unbeatable. Another plot could be Naruto teaching others how to use or adapt to the Hiraishin, which could lead to some really cool team - up strategies.
In this fanfiction, Naruto is the central character as it focuses on his actions regarding the Hiraishin. Besides Naruto, other main characters could include the old ninja masters who might have some insights into the Hiraishin. They could be characters from Naruto's village or even from other hidden villages. And of course, Naruto's friends like Sakura might play a role. Maybe she helps Naruto in some way, perhaps by providing medical support during his intense training to recreate the Hiraishin.
The Hiraishin Bloodline in fanfiction might also have enhanced chakra control related to the teleportation. For example, some versions might let users teleport not just themselves but also objects or other people they are in contact with. This can be a strategic advantage in battles where they can rescue allies or move important items to safety. Additionally, it could potentially have a connection to spatial - time ninjutsu in more complex fanfiction concepts, enabling the user to manipulate time - space around the marked areas for various effects.
Well, in many such fanfictions, one key event could be Naruto's intense training to master the Hiraishin. He might face various challenges during this training, like understanding the complex chakra control required. Another event could be his first successful use of the Hiraishin in a battle, which gives him an edge over his opponents.
In this fanfiction, Naruto is the central figure. However, other important characters could include Kakashi. Since Kakashi has knowledge about many techniques, he could be a mentor to Naruto in his Hiraishin training. Also, characters like Jiraiya might make an appearance. Jiraiya could offer his wisdom and experience, having seen many powerful jutsus in his lifetime and helping Naruto in understanding the deeper aspects of the Hiraishin.
I suggest checking out 'The Shinobi with Hiraishin Skills'. The female OC in this story uses her Hiraishin knowledge to overcome various challenges and make her mark in the Naruto world.
I'm not entirely sure about the specific key plot points as I haven't read this particular fanfiction in detail. But generally, it might involve Naruto's exploration and improvement of the Hiraishin technique. Maybe he discovers new ways to use it in battles or for other purposes like quick transportation around the ninja world.
In a fanfiction where Naruto makes the next Hiraishin, he could potentially revolutionize combat in the Naruto universe. He might use it to instantly transport himself and his allies out of dangerous situations. For example, in a battle against a powerful enemy like Kaguya, if Naruto had created an improved Hiraishin, he could have quickly moved his comrades to safety and then launched a surprise counter - attack. This would give him an even greater edge in battles, as his already impressive speed and combat skills would be enhanced by the new Hiraishin.
The key element is Naruto's determination. He has to be really determined to learn both the Rasengan, a powerful chakra - based attack, and the Hiraishin, a complex space - time ninjutsu. Without that strong will, he wouldn't be able to endure the tough training.