One possible plotline could be a story set in an alternate universe where Sakura is pregnant. Kakashi could be her mentor, guiding her through this new phase of life while also dealing with Sasuke's return to the village. Sasuke might initially be hesitant about the pregnancy but then gradually grow to accept and support Sakura.
Perhaps in this fanfiction, the village is in a time of peace. Sakura discovers she's pregnant. Kakashi, as the respected elder figure, helps ensure her safety and the safety of the unborn child. Sasuke, who has been on a journey of redemption, now has to come to terms with becoming a potential father - or at least a supportive figure in Sakura's life. This could lead to a lot of character development for all three, as they navigate through the joys and challenges of this new situation.
A possible plotline could be that Sakura discovers she has a rare and dangerous pregnancy complication. Sasuke, initially shocked, vows to protect her and find a solution. He might go on a journey to find a rare herb or seek the help of a reclusive healer. Meanwhile, Sakura is in the village, trying to stay strong and use her medical skills to keep herself and the baby alive as long as possible.
One possible plotline could be Kakashi teaching them unique ninja skills. Since he has his own set of diverse abilities, he could pass on some of his more unorthodox techniques to Naruto, Sasuke, and Sakura. For example, he might teach Naruto a more refined version of the Rasengan, or help Sasuke better control his Sharingan powers. And for Sakura, he could train her in some of his stealth and assassination techniques, which would add a new dimension to her combat skills. Another plotline could involve Kakashi helping them deal with their personal issues. He could be a mentor figure for Naruto in understanding his loneliness and the importance of his role as a Jinchuriki. For Sasuke, Kakashi could play a key role in his journey to avenge his clan while also guiding him to not be consumed by hatred. And for Sakura, he could assist her in growing more confident in her abilities and not being overshadowed by her teammates.
One possible plotline could be that Sakura decides to raise the child on her own. She focuses on her medical ninjutsu to provide for the baby. Another could be that she tries to find Sasuke again to make him take responsibility. Maybe she faces challenges from the village as a single mother, but her friends support her through it all.
One possible plotline could be that they leave to seek a new form of power. Maybe they've discovered a threat that the Hidden Leaf isn't aware of, and they believe they can find a solution outside. Another could be that they're on a journey of self - discovery. Sakura has always been in Sasuke's shadow to some extent, and this could be her chance to truly find herself while being with him. Also, perhaps they leave due to some political unrest in Konoha that they don't want to be a part of.
Well, one plotline could be that Sakura, feeling a bit lost in her ninja journey, is adopted by Kakashi. He takes her under his wing and helps her discover her true self. This could involve Kakashi teaching her about the importance of self - belief and how to use her chakra more effectively. Another plot might be that they get involved in secret missions together. As they work side by side, Sakura learns more about Kakashi's past and his own ninja struggles. And this new family bond could also create some jealousy or confusion among their comrades in the village.
In the fanfiction, Kakashi might fail because of external pressures. For example, he could be given other important missions that take up a lot of his time and energy. So, he can't dedicate enough time to Sasuke and Sakura's development. Also, he could be facing political pressure within the village that restricts his teaching methods or the resources he can use for their training. This would lead to him not being able to meet their needs and ultimately failing them.
Maybe Sakura teaches Sasuke about emotional control. Sasuke has always been brooding and angry, and Sakura, with her more empathetic nature, could show him how to manage his emotions better. This could lead to Sasuke becoming a more well - rounded ninja and a better teammate.
Maybe Sasuke is jealous because Sakura has achieved some great feat in the ninja world and is getting a lot of attention. In the fanfic, this could lead to Sasuke training even harder to prove himself worthy of her. Sakura, on the other hand, might be confused by Sasuke's sudden distance. She could try to reach out to him, but Sasuke's pride and jealousy keep him from being receptive. It could all come to a head during a dangerous encounter with a powerful enemy where they finally communicate their feelings.
A plotline could be that there is a powerful new enemy that specifically targets their bonds. This enemy uses illusions and mind - control to try and turn Sasuke against Naruto, or make Sakura distrust Kakashi. They have to fight not only the physical attacks of this enemy but also the mental and emotional turmoil it causes within their group. In the end, they realize the true strength of their relationships and are able to defeat the enemy.
A plotline could revolve around Sakura getting special training from Kakashi. He could pass on his unique skills and knowledge, like his lightning - style jutsu or his stealth techniques. This would make Sakura an even more formidable ninja and also strengthen their father - daughter bond.