Often, it starts with Harry having some sort of dark transformation or knowledge already. Then, when he goes back in time, he uses this to his advantage. For example, he might use his knowledge of future events to gain power or get revenge on those who wronged him.
In 'dark harry goes back in time fanfiction', the plot usually develops around Harry's desire to change the past. Since he's dark, his methods of change can be quite extreme. He may try to prevent certain events that led to his own suffering, but in doing so, he might create new problems. His actions also interact with the characters in the past, which can lead to interesting power struggles and character developments.
Often, it starts with a strange time - related event. Maybe a time - turner malfunctions and sends a character to the wrong time. Then, the character has to find a way to get back to their own time. Along the way, they interact with characters from that era and change things, which then sets off a chain reaction in the overall story.
Often, it starts with the discovery of the baby being lost. Then, there could be a search. For example, the Malfoy family might use their connections in the wizarding world to start looking. Maybe they ask other pure - blood families for help.
Often, it starts with Naruto's decision to retire. Then, it might explore how the ninja world reacts to his absence. For example, there could be a power vacuum that others try to fill. Or it could focus on Naruto's personal growth in a non - ninja context, like learning new civilian skills.
The plot of a Naruto Hokage harem fanfiction typically begins with Naruto's ascension to the Hokage position. Then, the female characters in the harem start to form connections with him. Some might be old friends, like Shikamaru's sister Temari if she's in the harem. Their relationships grow as they help Naruto in his Hokage tasks, like dealing with diplomatic issues. The harem also provides a source of emotional support for Naruto during tough times, and the relationships evolve through various events and shared experiences in the village.
Often, it changes the original plot by allowing Harry to prevent certain deaths. For example, he might go back in time to save Sirius Black or Dumbledore. This alters the emotional landscape of the story significantly.
Often, it starts with Harry's decision to become a doctor. Maybe he realizes that there are so many people, both Muggles and wizards, in need of help. Then, he begins his studies. If it's in the wizarding world, his studies might include both magical and non - magical medical knowledge.
In a 'god protagonist novel', the plot often starts with the discovery or revelation of the protagonist's god - like powers. For example, in 'The Lightning Thief', Percy Jackson first realizes he's a demigod. Then, there are usually challenges and quests. The protagonist must use their powers to overcome obstacles, like fighting monsters or solving mysteries. There are also often relationships with other characters, both allies and enemies, which shape the plot as they interact with the god - like protagonist.
Often, in a destiny romance novel, there's an initial encounter that seems fated. For example, two characters might meet in an unexpected place or situation, like during a storm or at a far - off destination. Then, there are obstacles in their way, such as differences in social class or family expectations. But destiny keeps pulling them together, and they have to overcome these challenges to be together in the end.
Fem Harry might develop more empathy going back in time. In the original timeline, she faced a lot of hardships which made her a bit more guarded. But going back, she might use her experiences to be more understanding towards others. For example, she could be more patient with Neville, helping him gain confidence earlier. Also, she might be more confident in her femininity compared to her previous self, using it as a strength rather than something to be overlooked in the male - dominated wizarding world.
Going back in time gives Severus the opportunity to develop a different relationship with power. In the original timeline, his pursuit of power through the Dark Arts and association with Voldemort led to many problems. But if he goes back, he could use his knowledge to gain power in a more positive way. He could become a powerful force for good in the wizarding world, using his intelligence and skills to promote peace and cooperation. His character would then be seen as a reformed and wiser version of himself, rather than the conflicted and often tragic figure he was in the original story.