In proper fanfics rather than 'lemon' ones (as 'lemon' implies inappropriate content), Naruto is known for his never - give - up attitude. He's the heart of the story, always trying to bring Sasuke back and protect his friends. Sasuke is a complex character, with his family's past haunting him, which makes him seek power and revenge at times. Sakura, she starts as a girl with a crush but evolves into a capable ninja. These characteristics are often the foundation for fanfic authors to create interesting stories that don't involve improper content.
One reason could be to create shock value. By having two main characters kill another important character, it grabs the reader's attention. Another could be to explore a very dark and alternate version of the Naruto universe. Maybe the writer wants to show how far characters could be pushed in extreme situations.
In the Naruto fandom, such a fanfic would be very out of character for both Naruto and Sasuke. They are comrades and friends with Sakura. However, some dark or AU (Alternate Universe) fanfics might explore extreme and unorthodox ideas. But in the main canon, they would never do this as they have a deep bond with Sakura. Naruto has been friends with her since childhood and Sasuke, despite his aloofness, also values her in his own way.
Perhaps in the fanfic, Sasuke was being pushed to his limits. He was so intent on protecting the village from a powerful threat that he didn't realize Sakura was in a dangerous position. His Sharingan might have malfunctioned in some way, causing him to misinterpret Sakura's movements as hostile. Or, there could be a situation where an enemy was using Sakura as a shield, and Sasuke's attempt to strike the enemy ended up harming Sakura instead, all in a split - second decision.
I really like 'The Team 7 Reunion Fanfic'. In this, Sakura has grown into a more powerful kunoichi. The story focuses on how Naruto and Sasuke's return to the village affects her. It's a great read as it beautifully portrays their individual growth and how they come together as a team again. It has some emotional moments that really tug at your heartstrings.
In fanfics, the relationship between Naruto, Sasuke, Sakura and Akatsuki can be extremely diverse. Naruto often represents the ideal of never - giving - up. Sasuke is the brooding, complex character. Sakura can be a strong - willed female character. Akatsuki, on the other hand, is usually portrayed as the antagonists. Fanfic writers may create various scenarios. For example, they might write about how Naruto tries to redeem members of Akatsuki, or how Sasuke's path intersects with Akatsuki's goals in ways different from the original story. And Sakura could play a role in either helping or hindering these interactions.
Sakura may initially be paralyzed by fear, but then her love for Sasuke and her own determination to survive could kick in. She might try to counter - attack in a non - lethal way, hoping to subdue Sasuke rather than harm him. She could also call out to their shared memories in an attempt to stop him from actually killing her.
Sasuke might develop by becoming more open and expressive of his emotions towards Sakura. He could start to show his love and care more freely, which is a big change from his usually reserved self.
If in a Sasuke fanfic, one possible reason could be unrequited love. If Sakura feels that Sasuke will never return her love and she has exhausted all hope, she might sink into despair. Another reason could be if she feels she has failed Sasuke in some way, like not being able to protect him or help him in his goals. Maybe she blames herself for his continued pain or suffering and sees no way out but to end her own life.
One great 'Naruto Hinata Sakura Sasuke Fanfic' is 'The Bonds Beyond'. It delves into the complex relationships between these characters. It shows how Hinata's quiet strength affects the group, and how Sakura's growth as a medic-nin plays a role in their adventures. Sasuke's journey back to the village and his interactions with Naruto are also well - explored in this fanfic.