The main characters would include Naruto, of course. Then there's Hinata. Given her relationship with Naruto, her presence can be a factor in his decisions, especially those related to love and family. Shikamaru, being one of Naruto's friends and a smart strategist, can also be a main character as he might offer different perspectives when Naruto is making important decisions in the fanfic.
One interesting plot idea could be Naruto making a tough decision between following his traditional ninja path or forging a new, unorthodox one. For example, he might have to decide whether to uphold the old clan rivalries or try to end them once and for all. This could lead to a whole new set of adventures and challenges for him and his friends.
It could also be due to Naruto's outcast status in the village initially. Danzo might think that banishing Naruto would be an easy decision as Naruto doesn't have many supporters at first. He might believe that by getting rid of Naruto, he can maintain the status quo in the village and prevent any disruptions that Naruto's presence might cause in the future.
Well, a hasty decision in fanfic often messes up the story's logic. It might cause characters to act out of character or skip important steps in the plot. Also, it can disappoint readers who were expecting a more thoughtful progression.
In 'a hasty decision fanfic', conflict is a very common theme. The hasty decision usually leads to some form of conflict, whether it's internal within the character who made the decision or external with other characters or the environment. And then there's the theme of redemption. The character may strive to redeem themselves for their hasty action, which can make for an interesting story arc.
One possible reason could be to protect his friends. He might think that by sacrificing his heart, some great danger or enemy would be vanquished, thus ensuring the safety of those he cares about. For example, if there was a powerful curse that could only be broken by his heart's sacrifice.
In 'naruto decision fanfiction', the concept of Naruto choosing a different training path is fascinating. Instead of training with Jiraiya, he might have sought out other powerful ninjas. This could have given him different skills and abilities, which would impact how he faces his enemies. For instance, if he trained with Kakashi more intensively, his combat style might be more like Kakashi's.
One possible reason could be his pursuit of power. Naruto might feel that he can't achieve his full potential in the current place and needs to go on a journey to become stronger. Another reason could be to fulfill a promise or a sense of destiny. He may have a calling that he believes can only be answered by leaving.
I'm not sure which specific 'a hasty decision fanfic' you are referring to. There could be many fanfics with this title or related concept in different fandoms. You can try searching on fanfic platforms like Archive of Our Own or Fanfiction.net.
Naruto himself is obviously very popular in these fanfictions as the main character. His decisions are the central focus. Sasuke is also commonly involved. Since Sasuke's actions and decisions often intertwine with Naruto's, fanfiction writers like to explore how different decisions from Naruto would affect Sasuke's path. For example, if Naruto made a decision that could sway Sasuke from his revenge - seeking journey.