Often, in this type of fanfiction, a dark wizard might try to Obliviate Daphne to use her as a pawn against Harry. Harry then has to reverse the spell or deal with the consequences. There are also plotlines where Daphne uses Obliviate on herself to forget a painful memory related to Harry, but Harry finds out and tries to help her regain those memories. It can also be a plot where Daphne's family wants her to forget Harry, so they use Obliviate, and Harry has to fight against that.
One common plotline is that Daphne witnesses something she shouldn't, and Harry has to use Obliviate to protect her. Another is that an enemy uses Obliviate on Daphne to make her forget her connection to Harry, causing a rift between them. And sometimes, Harry accidentally obliviates Daphne's memories related to their relationship, and he has to find a way to make her fall in love with him all over again.
The 'Harry and Daphne Obliviate' fanfiction concept is really cool. When Obliviate is involved, it can explore themes of power and responsibility. Harry, having experienced the misuse of powerful magic, should be more cautious. But if he uses Obliviate on Daphne, it might be out of good intentions like protecting her from a dark secret. However, Daphne might feel violated when she realizes her memories have been tampered with, which can lead to conflict between them and drive the plot forward in many different ways.
One common theme is the exploration of memory and identity. Since the Obliviate spell is about erasing memories, fanfics often look at how Harry's identity would be affected if his memories were tampered with. Another theme could be the power dynamics between Lockhart and Harry. Lockhart is a supposed authority figure, and his attempt to use the Obliviate spell on Harry shows an abuse of power in a way. And of course, there's the theme of redemption, like whether Lockhart could ever make up for what he tried to do.
A common plotline could be that they meet in a secret place in Hogwarts, like a hidden room. They discover they both have secrets they can't share with others easily. For example, Daphne might be involved in some kind of research on a rare magical plant, and Harry could be having some strange dreams about Voldemort again. They bond over their need for secrecy.
One interesting plotline could be how they navigate the wizarding society's reactions. Since Daphne is from a different social circle than Harry, there might be challenges in how they are perceived together. For example, Daphne's pure - blood family might have certain expectations that contrast with Harry's more inclusive views. Another plotline could involve them using their combined magical skills to solve mysteries in the wizarding world. Harry's combat and survival skills along with Daphne's knowledge of potions and magic theory could make them a formidable team.
One possible plotline could be that they meet in the library while searching for a rare book. Harry might be looking for something to help him with a difficult class assignment, and Daphne could be researching dark magic for a different reason. They start off as rivals in this search but gradually develop a mutual respect and then friendship that could potentially turn into something more.
One interesting plotline could be them meeting in a secret place in Hogwarts, like the Room of Requirement. They start off as acquaintances but gradually fall in love as they discover shared interests, like a love for ancient magic spells.
A plotline where Harry, Daphne, and Astoria are all part of a secret club in Hogwarts that is dedicated to uncovering the long - lost magic of the founders. They go on adventures in the castle, searching for hidden chambers and ancient spells. This would bring out their individual personalities and how they interact with each other. For example, Harry's bravery, Daphne's intelligence, and Astoria's creativity could all play important roles in their discoveries.
Perhaps Harry and Daphne are part of a secret organization in the fanfiction. Daphne betrays Harry by revealing his identity to the enemy for some personal gain, like protecting her family from a threat the enemy made. Then Harry has to deal with the consequences of her betrayal and also figure out if he can forgive her.
One possible plotline could be Harry and Daphne exploring the wizarding world together, like visiting hidden magical places. Another could be them facing some kind of mystery at Hogwarts that only they can solve through their combined skills.
A frequent theme is adventure. Since they are in the wizarding world, they often go on quests or face dark forces together. Their relationship then grows stronger through these shared experiences. Also, the theme of self - discovery is present. As they interact, both Harry and Daphne learn more about themselves and their place in the wizarding world.