Perhaps in the fanfiction, Draco is cursed and has to wear a diaper as part of the curse's effects. The story could then revolve around his search for a cure while trying to maintain his dignity. He might face ridicule from some of his Slytherin peers, but also find unexpected kindness from others.
One possible plot could be a comical one where Draco accidentally gets turned into a baby and has to deal with wearing a diaper while his friends try to figure out how to reverse the spell. Another could be a more serious take on his childhood, where wearing a diaper is a symbol of his vulnerability during a difficult time in his family.
Hermione could be a main character. She might be the one who discovers Draco's situation and tries to help him out of pity or a sense of justice. Harry could also be involved, perhaps initially being suspicious of Draco's new state but then realizing it's not a trick.
Another plot could involve a trainer who discovers a strange connection between Arceus and a mysterious diaper - like artifact. As they explore this connection, they find out that it has something to do with an ancient power that was sealed away long ago. The trainer then has to protect Arceus and the artifact from evil forces who want to use this power for their own gain.
One plot could be that Draco disappears because he's on a secret mission for the Order of the Phoenix. He has to go undercover in the Death Eater ranks and cut off all contact with his friends at Hogwarts to keep them safe. Another idea is that he disappears due to a family curse that suddenly activates, and he has to find a way to break it while being in a hidden magical realm. A third plot could be that Draco fakes his disappearance to start a new life away from the expectations and pressures of the wizarding world.
Maybe in a post - war scenario, Draco is in hiding and a kind - hearted person finds him starving. So they start to secretly feed him, and during this process, a bond forms between them that's more than just about food.
One interesting plot could be Draco being sent to Beauxbatons as part of an exchange program. There, he has to deal with a completely different magical culture and school system. He might struggle to fit in at first, but gradually discovers new aspects of magic and himself. Another plot could involve Draco falling in love with a Beauxbatons student, which causes a stir as their families may have different allegiances in the wizarding world. And a third plot could be Draco getting involved in a mystery that is centered around Beauxbatons, perhaps something to do with an ancient magical artifact hidden in the school.
A great plot could be that Fem Naruto wearing the Kyuubi attracts the attention of other villages. They see her as a potential threat or an opportunity. This could lead to diplomatic tensions. Meanwhile, within her own village, she has to deal with the elders who are worried about her newfound power and how it might disrupt the balance. But Fem Naruto, with the Kyuubi's power, is determined to prove that she can use it for the greater good. She might start training with new mentors who understand the Kyuubi better, and through her training, she unlocks even more hidden abilities.
One possible plotline could be a comical misunderstanding. Maybe there's a spell gone wrong that causes some sort of diaper - related chaos in Hogwarts. For example, a spell meant to clean the corridors accidentally turns Hermione's books into diapers and Draco gets blamed for it, leading to a series of events where they have to work together to fix the situation.
One plot could be that after Draco injures Hermione accidentally during a duel in their school days, he feels extremely guilty. He then tries to make it up to her by secretly helping her with her studies and protecting her from other Slytherins who might mock her for being injured. Eventually, they start to understand each other better and form an unlikely friendship.
One interesting plot could be the development of an unexpected friendship between the kidnapped character and Draco. Maybe they start to understand each other's motives and past traumas, leading to a change in their relationship from captor - captive to something more complex.
In a fanfiction plot, it could be that Hermione discovers a new spell that requires a unique form of casting with the fingers. Draco, being knowledgeable about some dark magic that has similarities, tries to help her. Their fingers work in tandem during the spell - casting practice, and this creates an unexpected connection between them. This connection then grows into a friendship that has to overcome the prejudices of their past. For example, Hermione has to deal with the fact that Draco was once a Death Eater supporter, and Draco has to accept Hermione's Muggle - born status in a more positive light.