One plotline could be Snape forgetting his past enmities, especially towards Harry Potter. This might lead to an unexpected friendship developing between them as Snape no longer holds the grudges from before. He could start seeing Harry in a new light and they might work together to uncover secrets about the wizarding world that were previously clouded by their animosity.
Luna Lovegood could be a character in such fanfiction. Given her unique perspective on things, she might have an interesting take on Snape's memory loss. She could offer some unorthodox solutions or just be a calming presence in the chaos that follows Snape's changed state. And of course, Dumbledore might be involved as he has always had a complex relationship with Snape and would surely be interested in how this memory loss affects Snape and the future of Hogwarts.
If Snape loses his memory, initially Harry might be very confused. He's used to Snape being his enemy. But without his memories, Snape might not show the same animosity towards Harry. Harry could even feel a sense of pity and try to help Snape regain his memories. Their relationship could shift from one of hatred to a more complex one of trying to understand and help each other.
One great fanfiction with this theme is 'Fading Memories'. It beautifully explores Draco's struggle as he loses his memory and how it affects his relationship with Harry. The story is full of emotional moments and really delves deep into their characters.
A 'Naruto loses his memory fanfiction' might involve a mysterious curse placed on Naruto. He forgets not only his personal relationships but also his ninja skills. His sensei, Kakashi, could take it upon himself to reteach Naruto everything from the basics. Meanwhile, Naruto might form new, unexpected relationships with people in the village who don't know the 'old' him, and these new relationships could either help or hinder his journey to regain his memory.
If the Kyuubi loses its memory in the fanfiction, it could potentially change the entire Naruto storyline. For instance, Naruto may no longer have the same source of power that he once had. Instead, he might have to rely on his own natural talents and training more than ever. The Kyuubi, without its memories, could start to develop a new personality. It might become more curious and innocent, which would be a huge contrast to its previous menacing self. This would force Naruto to adapt and also give the other characters in the series new ways to interact with both Naruto and the Kyuubi.
In this fanfiction, perhaps Edward's memory loss is caused by a magical spell or an accident. As he tries to regain his memory, he stumbles upon a group of friends or allies who are also on a journey of their own. Together, they face various challenges and along the way, Edward slowly starts to remember fragments of his past, which could be both good and bad memories.
Well, one possible plot could be that Deku gets hit by a villain's quirk during a battle. This quirk erases his memory. His friends, like Uraraka and Iida, then try to help him remember who he is. They might show him his hero notebook, hoping it jogs his memory about his dream of becoming a great hero.
Well, one possible plot could be that the crew has to deal with a new Luffy who doesn't remember them. They might have to re - introduce themselves and re - create their bonds. For example, Zoro could try to jog Luffy's memory by showing him his three - sword style, which was always something Luffy was impressed by. Maybe they go on a quest to find a way to restore his memory, facing new enemies along the way who are trying to take advantage of Luffy's weakened state.
It could be Orochimaru. He's always been interested in Naruto's power. Maybe he devises a plan to make Naruto lose his memory so he can manipulate him more easily, perhaps to use him as a weapon against the Hidden Leaf.