Obviously, Naruto and Sakura are the main characters. Naruto is the one who has been away and is now coming back. Sakura, being his friend and potentially more in the context of this fanfiction, is waiting for him in the village. Their relationship is a central focus, and other characters from the Naruto universe might also play supporting roles depending on the specific story.
A 'narusaku naruto returns fanfic' could be about many things. It might focus on Naruto's return in a scenario where he has a relationship with Sakura. It could involve adventures they go on together, how their relationship has developed during his time away and his return, and how they face new challenges in the ninja world as a couple.
A possible plotline could involve Naruto's return after having some sort of spiritual awakening. He returns to the village, and Sakura is the first person he seeks out. Their interactions then lead to a deeper understanding of their feelings for each other. This could involve flashbacks to their past experiences together and how those have shaped their current relationship.
The 'narusaku naruto returns from training fanfiction' could have Naruto coming back with a newfound confidence. Since he has been away for training, he might have a different perspective on things. Regarding his relationship with Sakura, he could start to see her in a new light. He may also bring back knowledge of new ninja techniques and strategies that could potentially change the way the village approaches combat and defense.
Naruto could become more mature. His time in training might have taught him patience and better control over his emotions. Sakura might also develop in response to Naruto's return. She could become more confident in their relationship, whatever it may be. And there could be changes in how other characters in the village view Naruto, seeing him as a more reliable and powerful ninja.
You can try looking on fanfic websites such as FanFiction.net or Archive of Our Own (AO3). These platforms have a large collection of fanfictions, and there's a good chance you'll find 'narusaku naruto returns fanfic' there.
Yes, there probably is. In the Naruto fandom, there are various fanfiction themes, and the 'narusaku' (Naruto - Sakura relationship) with Naruto hating Sakura can be an exploration of an alternative take on their relationship. Some fans might write this to explore what - if scenarios or to express their own views on the characters' dynamics that deviate from the canon.
There is also 'Narusaku: The Next Chapter'. This fanfiction focuses on how Naruto and Sakura's relationship evolves further. It delves into their family life, with Sakura being a strong and loving mother, and Naruto being a doting father. The story also has some exciting plot twists involving old enemies resurfacing, but they face it all together as a couple.
Well, their relationship would be more stable. Before, there was probably a lot of unspoken tension and flirting. Now that they're married, there would be a deeper sense of commitment. They would be more open with each other and share everything.
Well, in some Narusaku fanfictions, Sakura might hurt Naruto emotionally by choosing Sasuke over him repeatedly. This can make Naruto feel rejected and unloved, causing him pain.