Well, it's popular because it gives a different spin on the relationship between Hermione and Harry. It allows for exploring a more maternal or guardianship - like relationship between them, which is not really shown in the original books.
Well, it could be about Harry and Hermione taking on the role of raising Teddy Lupin. Maybe it shows how they handle his upbringing, deal with his magical education, and support him through various challenges in the wizarding world.
One great 'hermione raises harry' fanfiction is 'A Different Kind of Family'. It explores how Hermione steps in to raise Harry in a world where things go a bit differently after the war. The character development is really well - done.
The main characters are clearly Harry, Hermione, and Teddy. Harry is one of the most important characters in the Harry Potter universe, a brave wizard. Hermione is known for her intelligence and studiousness. And Teddy is the son of Remus Lupin and Nymphadora Tonks, who needs to be raised by someone after his parents' death.
The story could also impact the fight against Voldemort. Hermione's knowledge and skills, enhanced by Snape, could give the Order of the Phoenix an edge. She might be able to develop new spells or strategies to combat the Death Eaters. Also, her relationship with Snape could lead to some unexpected alliances within the wizarding world, as people might be forced to re - evaluate their opinions of both of them.
One possible fanfiction could be about Snape taking Hermione under his wing after realizing her extraordinary intelligence and potential. He might secretly tutor her in advanced potions and dark arts defense, leading to a unique bond between them. This could also cause some conflict with other Hogwarts staff and students, as Snape has a rather infamous reputation.
Hermione would probably develop a much harder exterior. Bellatrix is a cruel and unforgiving figure, and Hermione would need to be tough to survive in her presence. She might become more calculating in her actions, always thinking several steps ahead. Her knowledge of magic would also take a different turn. She'd be exposed to dark magic, which would either make her more determined to fight against it or, in a more complex scenario, make her see some aspects of it that she hadn't considered before. This could lead to internal moral dilemmas that shape her character in new ways.
One possible plotline could be that Hermione discovers a way to time - travel and goes back to Snape's childhood. She decides to raise him in a more positive environment to change his future. Maybe she teaches him about love and friendship from a young age, which alters his personality and his relationship with others at Hogwarts later on.
In some fanfictions, Hermione raising Delphini could lead to a major shift in the power dynamics. Delphini, being Voldemort's daughter, has a certain dark heritage. Hermione's influence might try to counteract that. For example, she could use her vast knowledge to teach Delphini about the value of life and love, which is completely opposite to what Voldemort believed. This could potentially turn Delphini into a force for good in the wizarding world, changing the perception of those with a dark family background.
One key plot point could be Bellatrix's initial motives for taking Hermione under her wing. Maybe she sees potential in Hermione's magic and wants to corrupt it for her own dark purposes. Another aspect could be Hermione's struggle to maintain her own values while being in Bellatrix's influence. For example, she might resist Bellatrix's attempts to make her use dark magic. Also, the relationship between the two characters would be complex, with Bellatrix being a cruel and unpredictable mentor, and Hermione constantly trying to outwit her in some way.