During his alone time, Sasuke could also be reflecting on his past. He might think about his family, his time in Team 7, and all the events that led him to where he is now. This could be a time of deep emotional introspection for him, sitting by a lake, staring at his own reflection and seeing the faces of those he has lost.
Sasuke's alone time in fanfiction could involve him training intensively. He might be in a secluded forest, practicing his new jutsu. His Sharingan could be glowing as he focuses on perfecting his moves, lost in his own world of self - improvement.
One common theme is solitude and self - discovery. Sasuke is often portrayed as using his alone time to understand himself better, to figure out his true goals and desires away from the influence of others.
In a fanfiction about the Harry Potter train being alone, perhaps it could become a magical entity on its own. It might start to travel to mysterious destinations not on the regular Hogwarts route. Maybe it would pick up lost magical creatures or even lost wizards from different eras. It could be a place of refuge for those in need, with its compartments transforming into mini - magical habitats.
In a Sasuke time travel to the Sannin era fanfiction, Sasuke would be faced with a lot of opportunities and challenges. He could use his knowledge from the future to his advantage. For example, he might know about certain threats that the Sannin were not aware of. He could also be a key player in the battles of that era. His Sharingan would be a very valuable asset. However, he would also have to adapt to the different political and social situations of that time. His interactions with the Sannin would not only change his own future but also the future of the shinobi world as a whole.
In fanfiction, during their alone time, Natsu and Lucy might simply have a deep conversation. They could talk about their dreams, like Natsu sharing his desire to find Igneel more in - depth, and Lucy might open up about her hopes for her Celestial Spirit magic to grow stronger.
Another possibility is that they get into a bit of a light - hearted argument over something silly like who has the better taste in food. But in the end, they would just laugh it off and realize how much they enjoy each other's company during this alone time.
They might start by arguing as they have different personalities and beliefs from their time at Hogwarts. But then, they could gradually discover new sides of each other. Maybe Draco would share his insecurities about his family's reputation, and Hermione would listen with empathy.
Well, in such a fanfiction, Sasuke might be taken to Orochimaru's lair. There, Orochimaru could try to force Sasuke to accept his power - like the cursed seal. Sasuke, being strong - willed, would likely resist at first. But Orochimaru has his ways of persuasion. Maybe he'd show Sasuke some dark jutsu that could make Sasuke more powerful. And Sasuke, who's always eager to gain power to avenge his clan, might start to consider Orochimaru's offer despite the risks.
In this kind of fanfiction, Sasuke might capture Sakura for various reasons. One possibility is that he wants to use her as a bargaining chip against Naruto. Another could be that he has some kind of misunderstanding and thinks Sakura is a threat to his plans. However, Sakura is not a weak character. She might try to reason with Sasuke during her captivity, appealing to their past friendship. Maybe she could even find a way to escape on her own or with the help of some unexpected allies.
Peter might have an internal monologue about his loneliness. For example, he could be sitting in his room, staring at the ceiling, and thinking about how he can't really share his true self with anyone. He misses having a normal life where he doesn't have to constantly hide his identity.
It's possible that they could play some simple games during the sleepover. Since they are shinobi, they might even have some friendly competitions related to their ninja skills, but in a very light - hearted way, like seeing who can do a simple jutsu faster without using too much chakra.