One common theme is unrequited friendship. Naruto's deep - seated friendship for Sasuke not being reciprocated in the way he hoped could lead to his downfall. Another theme could be the idea of sacrifice. Naruto may sacrifice himself believing it will save Sasuke from his dark path.
A common theme is despair. Naruto could be in a state of utter despair over Sasuke's actions and choices. He may feel that he has no other option but to end his life to escape the pain. Also, the theme of powerlessness might be present. If Naruto feels he can't change Sasuke, he might take his own life as a form of final surrender.
In this type of fanfiction, a major theme is often the fragility of the male ego in the face of unrequited love. Naruto, despite his strong exterior, is broken by Sakura's lack of romantic interest. Another theme could be the idea of lost hope. Naruto may have hoped for so long that Sakura would come to love him, but when that hope is finally extinguished, he sees no reason to continue living. Additionally, themes of loneliness and isolation might be present as Naruto may feel completely alone in his unrequited love for Sakura.
Yes, such fanfictions exist. In these fictional scenarios, Naruto might kill himself because of Sasuke for several reasons. Naruto's whole life has been centered around Sasuke to some extent. If he feels that he has failed in his mission to bring Sasuke back to the right path and that the situation has become so dire that the only way to atone for his 'failure' is through his death, he might do it. Also, if Sasuke were to cause harm to someone Naruto holds dear, like the village or his other friends, and Naruto feels powerless to stop him in any other way, he could choose to end his own life as a last resort.
One common theme is self - doubt. Naruto may doubt his worth as a ninja or a friend, feeling like he has let everyone down. Another theme is the burden of his past. All the hardships he has faced can pile up and seem overwhelming, pushing him towards self - destruction.
One common theme is isolation. Percy might be depicted as completely alone, with no one to turn to or rely on, which could contribute to his decision to end his life. Another theme could be the failure of heroism. If Percy was seen as a hero in the fanfiction world and then failed miserably at something crucial, this could lead to his self - destruction as he can't bear the idea of not living up to the heroic image. There may also be a theme of unrequited love, where his feelings for someone are not returned and it drives him to despair.
It could be a miscommunication. Maybe Hinata said something that Naruto completely misinterpreted in a very negative way, like she didn't love him anymore or she blamed him for something major. This misunderstanding could be so great that Naruto loses hope and takes his life.
One possible reason could be extreme heartbreak. If in the fanfic, Sasuke does something unforgivable like completely rejecting Naruto's long - held friendship and trust, it might push Naruto over the edge. He has always placed great importance on his bond with Sasuke, and if that is shattered in a way that seems irreparable, it could lead to his self - destruction.
It's not a very common trope. Most Naruto fanfictions focus on their friendship or the original storylines. Killing off a major character like 'female Sasuke' (assuming it's a gender - bent or AU version) goes against the essence of the Naruto - Sasuke relationship in the main series which is more about rivalry and redemption. So it's not something you'll see often in mainstream fanfiction.
This is a very dark and unexpected plot. One possibility could be that Naruto is burdened by some extreme situation related to Hinata. Maybe he feels responsible for her getting into a great danger or a situation where her life is ruined, and his sense of guilt overpowers him, leading to this tragic end.
One common theme could be sacrifice. In the main MCU storyline, Tony Stark sacrifices himself to save the universe. Fanfiction might expand on this self - sacrifice, exploring his inner thoughts and emotions before making such a drastic decision. Maybe he feels it's the only way to atone for past mistakes or protect his loved ones in a more permanent way.
In Naruto fanfiction, the idea of Sasuke killing Naruto is not overly common but does exist in some darker or alternate universe scenarios. Some writers might explore this to show extreme character development or a drastic change in the story's direction. However, it goes against the core of the original series where their relationship is more about rivalry and ultimately friendship.