Well, it could be that Harry and Ginny use their own experiences with dark creatures and magic to create really interesting and hands - on lessons. For example, Harry might demonstrate how to fend off a Dementor using a Patronus charm, while Ginny could show how to deal with a Boggart in a practical way.
Another possibility is a new dark wizard or witch who emerges and wants to prove themselves by taking on Harry and Ginny. This antagonist could be jealous of their fame and power and decides to target their DADA class to show that they are not as great as everyone thinks. They could try to undermine the students' confidence in Harry and Ginny's teaching.
Well, in some fanfictions, Harry might draw on his own experiences facing dark magic. He could use his adventures with Voldemort as real - life examples to make the lessons more vivid. For instance, when teaching about defensive spells against the Imperius Curse, he could talk about how he resisted it in his encounters.
Well, perhaps in this fanfiction, Harry and Ginny teach at Hogwarts during a time of new threats. They use their unique skills to train students in a more practical way. Ginny, as a Quidditch star, could revolutionize the Quidditch teaching. Harry, on the other hand, might introduce new defensive spells that he learned from his adventures. And they could also have to deal with the politics within Hogwarts, like some teachers being jealous of their popularity among students.
The plot might involve Harry and Ginny sharing stories of their battles against Voldemort with the Marauders. In the process of teaching, they could also learn from the Marauders' own pranks and their way of dealing with difficult situations at Hogwarts. This exchange of experiences could lead to new friendships and a better understanding between the two groups.
Obviously, Harry and Ginny are main characters. Harry, with his knowledge of the future events and his skills as a powerful wizard. Ginny, who is also a talented witch. And then, of course, the Marauders - James Potter, Sirius Black, Remus Lupin and Peter Pettigrew. They are the ones being taught, so they are also central to the story.
Well, initially, Ginny might be a bit intimidated by Harry being her Dada professor. But as he encourages her in class and gives her challenging tasks, she rises to the occasion. This makes Harry see her as a strong and capable witch. As for Ginny, she begins to trust Harry more. They might start having private conversations about magic and life outside of class. Slowly, their relationship could evolve from a formal one to a more personal and affectionate one.
In this fanfiction scenario, Ginny could be having trouble in her 7th - year Dada classes. Harry, as the professor, offers her extra help. As they spend more time together, old feelings start to resurface. Meanwhile, there could be a plot by a group of dark wizards to infiltrate the school, and Ginny and Harry have to work together to stop them, all while navigating their complex relationship.
Another challenge would be keeping up with the ever - evolving dark arts. Harry has had his share of battles, but new threats are always emerging. He would need to constantly study and research to stay ahead, so that he can teach his students the most effective ways to defend themselves. Also, he has to balance his duties as a professor with his own personal life and possible future adventures.
Well, the theme of friendship or a special bond between Harry and the Dada professor is a frequent one. They might start off as just teacher - student but then develop a deeper connection. Additionally, the theme of overcoming fear is often there. Given that Dada is about dealing with dark creatures and magic, Harry has to overcome his fears, and the professor helps him in this journey. This creates an interesting dynamic in the fanfictions.