The main characters are Minerva and Harry. But we can't forget about the antagonists. Voldemort or his Death Eaters could be in the background, threatening the safety of Harry even when he is under Minerva's care. And there may be some other Hogwarts professors who interact with Minerva and Harry, such as Severus Snape, who might have a complex relationship with them in the fanfiction.
Well, in this type of fanfiction, Minerva and Harry are the central figures. However, Dumbledore often makes an appearance as well. He could be a guiding figure for Minerva or have some influence on Harry's upbringing. Also, characters from Harry's family, like Sirius Black if he is still alive in the fanfiction's universe, might get involved. He could be an ally to Minerva in protecting Harry or have his own ideas about Harry's future.
The main characters are clearly Minerva McGonagall and Hermione Granger. Minerva is the one who adopts Hermione, so she plays a crucial role in providing a new life and support for Hermione. Hermione is the character who is being abused and then rescued by Minerva.
One possible plotline could be Minerva helping Harry discover his true magical potential outside of just the Boy - Who - Lived status. Maybe she teaches him advanced magic that Dumbledore didn't have time for. Another could be Minerva protecting Harry from the darker elements in the wizarding world, like the Death Eaters, in a more motherly way. She might also introduce him to different magical cultures that he was previously unaware of.
Well, Harry Potter is almost always a main character. He is the hero of the original story, and fans like to see his story continue. Hermione and Ron are also main characters as they are Harry's closest friends. However, in some fanfictions, Draco Malfoy can also become a main character. He might have redeemed himself after the events of the original series and is now working with Harry and his friends to face new challenges in the wizarding world.
She becomes more nurturing. Usually, she's known for her strictness at Hogwarts, but when she adopts Harry, she softens up. For instance, she might show more patience when Harry makes mistakes in his magic studies.
Minerva in Harry Potter fanfiction is often the same strong, intelligent, and strict character as in the original books. She is a Transfiguration teacher at Hogwarts.
In some fanfictions, Minerva adopts Harry after realizing the Dursleys are mistreating him. She then takes on the role of a mother figure, which is a huge change for Harry. This could include her taking him shopping for new robes and school supplies in a more loving and nurturing way than the Dursleys ever did. She might also introduce him to the wizarding world in a more personal and gentle way, making him feel truly welcome.
Minerva would be a strict but loving mother - figure. She would be very protective of Hermione and would use her wisdom to guide Hermione in her magical studies and in life. She might be a bit more relaxed in her personal interactions with Hermione compared to how she is with students at Hogwarts.
Well, Harry Potter, Hermione Granger, and Ron Weasley are often the main characters as they are in the original series. They are the ones who usually get involved in the adventures related to the volcano in these fanfictions.
Often, Harry Potter himself can be a main character in this type of fanfiction. He might be the one trying to tame a new or dangerous magical creature. Hermione Granger could also be a main character. Given her intelligence and love for knowledge, she could be involved in taming something related to ancient magic or spells. Ron Weasley might be there too, perhaps using his loyalty and courage in the process of taming a magical being that is causing trouble in the wizarding world.
In many Harry Potter detective fanfiction, Harry is the central figure. He's the one who usually stumbles upon the mystery first and feels compelled to solve it. Hermione is almost always involved as she can dig into books and ancient spells to find clues. Sometimes, characters like Luna Lovegood can also be important. Her unique perspective often helps in seeing things that others miss, which is really valuable in detective work within the wizarding world.