What would be the consequences for the story world in the 'naruto becomes heartbroken and leaves' fanfiction?

The relationships within the village would be severely affected. His friends would be heartbroken and split into groups, some trying to find him, others blaming themselves. The new generation of ninjas would also lack a role model. And the balance of power in the ninja world could shift, as other villages might see Konoha as weakened without Naruto and try to gain an upper hand.

Maybe Naruto discovers that the village he has been trying so hard to protect has been using him all along. He might find out some dark secrets about the Hidden Leaf, like they were involved in something immoral and were just using his power, which would shatter his idealistic view of the village and leave him heartbroken.

There would be a power shift. Since Madara was extremely powerful, Naruto - as - Madara would be an almost unstoppable force. Other villages would have to either ally with Konoha (which would be a difficult decision considering the situation) or try to find a way to counter this new threat. This could lead to a new arms race among the ninja villages.

If Naruto becomes immortal in a fanfic, one consequence could be that he would outlive all his friends. He would have to watch them grow old and die, which would be really sad. He might also become a bit of an outcast as he no longer fits into the normal cycle of life. People might start to fear him or see him as something other than human.

One major consequence would be in terms of his abilities. Kushina was known for her powerful sealing techniques. So if Naruto becomes her, he might lose some of his unique Naruto - like skills and instead gain more proficiency in sealing. This could change the way he battles. For example, he might rely more on sealing away enemies rather than his usual Rasengan and Shadow Clone techniques. And his role in the village as a protector might also change as he adapts to Kushina's abilities.

In such a fanfiction, Naruto might leave the village to seek deeper knowledge in sage arts. He could encounter ancient creatures that teach him unique sage techniques. Maybe he'll face new enemies during his journey, and his newfound sage powers will be crucial in battles.

He could leave because of a broken heart over a lost love. If Naruto had strong feelings for someone in Konoha, like Sakura, and she chose someone else or rejected him in a cruel way, it might be too much for him to bear. So he decides to leave the place full of memories related to that person.

One possible fanfiction could be that Sakura, in a moment of great sacrifice, uses her chakra to turn into sakura leaves that Naruto has always associated with her beauty and kindness. But this transformation is a final goodbye as she is sacrificing herself to save the village. Naruto is heartbroken as he watches the sakura leaves scatter, feeling like he has lost a part of himself.

If Sakura were to give Naruto a token made of sakura leaves as a symbol of their friendship, and then later break off all contact with him and leave the village, Naruto would be heartbroken every time he saw a sakura leaf. The once - positive association would become a painful reminder.

The impact would be huge. Naruto has always been a symbol of hope and friendship in the Naruto world. If he becomes like Obito, that symbol would be shattered. His friends and allies would be in shock and confusion. Konoha would likely be thrown into chaos as they try to figure out what happened to Naruto and how to deal with his new, potentially dangerous mindset.