In a 'Severus Snape adopts Harry fanfic', it could start with a situation where Dumbledore asks Snape to look after Harry for some reason. Snape is reluctant at first but agrees. Harry is initially afraid of Snape, but as they live together, Snape starts to open up about his past, especially his relationship with Harry's mother. This shared connection helps them build a relationship. Snape also helps Harry with his magic studies in a way that Hogwarts couldn't provide, and they gradually become a family of sorts.
One possible plot could be that Snape, out of a sense of guilt or a newfound understanding of Harry's situation, decides to take him in. Snape would have to deal with Harry's grief over his parents and his own complex feelings towards the boy. He might start to teach Harry magic in a more personal and different way than at Hogwarts, leading to a unique bond between them.
Well, in this kind of fanfic, perhaps Voldemort has been defeated earlier than in the original story. Snape realizes Harry has no real family left to care for him. Snape, being the complex character he is, decides to adopt Harry. They would struggle at first. Harry might be suspicious of Snape's motives, but over time, as Snape shows his more caring side, they develop a father - son like relationship.
In this fanfiction, the story could start with Harry finding Snape in a very vulnerable state after the Battle of Hogwarts. Harry feels a deep sense of guilt for how Snape was treated throughout his life. So he decides to adopt him. At first, their relationship is awkward. Snape is still his old sarcastic self, but Harry is determined. As time passes, they discover they have a lot in common. They both lost their parents at a young age, and they both had to face great challenges. This newfound understanding leads to a transformation in their relationship. Harry helps Snape to come out of his shell of bitterness, and Snape teaches Harry more about the Dark Arts in a controlled and ethical way so that Harry can better protect the wizarding world in the future.
Snape's personality would likely soften. He'd have to be more patient and understanding. Instead of just being the strict and often sarcastic Potions master, he'd become more nurturing. He'd still have his sharp edges, but around Harry, he'd show more kindness and care as he takes on the role of a guardian.
In such a fanfic, Snape's parenting style might be strict yet protective. He would likely enforce high standards in Harry's magical studies, just as he does in the classroom. But at the same time, he would secretly keep Harry safe from any real threats. He might not show much affection openly, but his actions would speak volumes.
In this fanfiction, Severus might adopt Harry to protect him from the dark forces that are still lurking around. He would use his knowledge of the dark arts and potions to keep Harry safe. He could also introduce Harry to a different side of the wizarding world, one that is more about academic study and self - discovery. For example, he may encourage Harry to study advanced potions at a very young age, which would give Harry an edge in his future magical education.
One possible plot could be that Severus discovers the extent of Harry's abuse at the Dursleys. He decides to take Harry in out of a sense of duty or perhaps a hidden soft spot for the boy. He then has to teach Harry about magic in a more personal and nurturing way, different from Hogwarts. They might also face opposition from the wizarding community who question Severus' motives.
In a possible plot, the magical bond of being a familiar could give Harry and Snape a new level of understanding of each other. Harry, as Snape's familiar, could gain insights into Snape's past and his true motives. Snape, in turn, would have to come to terms with having Harry so close in this new capacity. This could lead to a series of adventures where they work together in a different way than in the original series. For example, they might have to face Voldemort together with Harry using his new familiar - related powers and Snape using his potions and dark arts knowledge.
One possible plot could be that Snape, seeing the troubled situations of both Harry and Draco, decides to take them under his wing. He could start by teaching them more advanced magic in a strict but fair way. Harry might initially be resistant as he has his own ideas about Snape, but gradually realizes Snape's good intentions. Draco, on the other hand, might struggle with the idea of being under Snape's authority as he is used to his family's influence. They could all learn to live together, with Snape guiding them through the challenges of Hogwarts and the wizarding world at large.
One possible plot could be that Snape, despite his initial resentment towards James Potter (Harry's father), sees the vulnerability in little Harry. He decides to take him in out of a sense of duty to Lily (Harry's mother). Snape then has to adjust his life to care for a child. He teaches Harry potions at an early age and tries to protect him from the darker elements in the wizarding world. Harry grows up with a different perspective on Snape than in the original story.
Snape's character changes in his relationship with others too. He becomes more involved with the Hogwarts community as he is now responsible for Harry. He might start to collaborate more with other teachers, like McGonagall, who he previously had a rather cold relationship with. His attitude towards the students also changes as he realizes that they are just kids trying to find their way, much like Harry. This is a big shift from his usual strict and often unforgiving self.
One interesting plot twist could be that Snape's blood adoption gives Harry some of Snape's memories. This would allow Harry to see Snape's true motives throughout the years, not just the ones Dumbledore had revealed. Another could be that the adoption gives Harry a new magical ability related to Snape's potions expertise, like the ability to brew extremely powerful potions without much effort.