How does the relationship between Harry and Regulus develop in 'Harry Potter raised by Regulus' fanfiction?

A possible plotline is the impact on Harry's personality. Being raised by Regulus, who was once a Death Eater but had a change of heart, might make Harry more complex. He could have a better understanding of the gray areas in the wizarding world. For example, he might not be as quick to judge Slytherins. And in terms of the overarching story, there could be a new take on the prophecy. Maybe with Regulus' influence, Harry interprets the prophecy in a different way that changes the whole course of the battle against Voldemort.

A third plotline could be how Harry's Hogwarts experience is different. He might have different knowledge and skills compared to the original story. For instance, he could be more proficient in certain areas of magic that Regulus specialized in, like ancient runes or potion - making. This would give him an edge in his classes and adventures at Hogwarts.

Obviously, Harry Potter and Regulus Black are the main ones. Harry as the boy who lived, and Regulus as his guardian, would be central to the story. Their relationship would be explored deeply.

The relationship develops gradually. Cloud, being from a different world, has to adapt to the wizarding world to raise Harry. Initially, he may be a bit distant, but as he witnesses Harry's struggles against the forces of the Dark Arts, he becomes more involved. He starts to share his own experiences of fighting against powerful enemies in his world with Harry. This sharing creates a deeper connection between them. Harry begins to look up to Cloud not just as a protector but also as a source of wisdom. And Cloud starts to care deeply for Harry, seeing in him a chance to do something good in this new and strange world he has found himself in.

You can start by looking on fanfiction websites like Archive of Our Own (AO3). Just type in 'Harry Potter and Regulus' in the search bar, and it will show you a bunch of relevant fanfictions. There are also some dedicated Harry Potter fanfiction forums where people might recommend good 'Harry Potter and Regulus' stories.

At first, it might be a bit rocky. Harry, coming from the wizarding world, would be confused by Kakashi's ninja ways. But as time passes, he would start to respect and look up to Kakashi as a mentor. Kakashi, on the other hand, would see Harry's potential and determination, and grow to care for him like a student or even a son.

The story would also shift in terms of Harry's place at Hogwarts. His sorting into Gryffindor might be more complex. Since he's related to the Black family, which has a history of being in Slytherin, there could be an internal struggle within Harry about his house loyalty. And his friends, like Ron and Hermione, might react differently to this new revelation about his parentage as they've always known him as a Potter.

It could become very close and trusting. They'd know each other inside out and have a deep bond from childhood.

One common theme is redemption. Regulus was once a Death Eater, and in many fanfictions, he tries to atone for his past sins through his connection with Harry. For example, in stories where he helps Harry uncover secrets about Voldemort.

One popular 'Harry Potter and Regulus' fanfiction might be those that explore their relationship in the context of the fight against Voldemort. For example, some fanfictions may focus on how Regulus' knowledge of the Horcruxes could be passed on to Harry in a more in - depth way than in the original books. Another aspect could be the exploration of their family ties and how they both overcame the dark influence of their families to some extent.