It could be that Hermione is cursed by a dark wizard and as a result, she has a tail. Her friends, Harry and Ron, then set out to find a way to break the curse. In the process, they encounter various magical creatures and ancient spells. The story could focus on their adventures and Hermione's struggle to adapt to having a tail while they search for a solution.
Maybe in the fanfiction, Hermione discovers that her tail is a sign of a long - lost magical heritage. This could lead her on a journey to discover more about her family's past and the powers associated with having a tail. Along the way, she might face challenges from those who want to use her new - found connection for their own gain.
Perhaps the cat tail is a curse at first. Adrien has to deal with all the awkwardness it brings, like not being able to hide it properly. But as time goes on, he realizes that the tail gives him an edge in certain sports or activities, like climbing. So it turns from a curse to a sort of advantage.
Maybe Hermione has a morning encounter with an unexpected character, like a centaur who comes to her with a warning about something that will happen during the day. This sets off a chain of events where she has to use her wits and knowledge to prepare for it while the morning unfolds around her. It could involve her running around the castle, gathering resources and allies all before breakfast.
One possible plot could be that Natsu's nightmare is related to losing his friends. In the nightmare, he might see Fairy Tail being destroyed and his friends being hurt or disappearing. This could lead to him waking up in a panic and then being extra protective of his guildmates in the real world.
One possible plot could be that there is some sort of misunderstanding. Fleur believes Hermione is in danger from some dark magic or a dangerous creature and ties her to the bed to keep her safe. As the story unfolds, they realize the miscommunication and work together to solve the real issue at hand. However, this is a rather strange starting point for a plot and would need a lot of careful development to make it a believable and engaging fanfiction.
Well, in Dragon Ball lore, Gohan's tail was a Saiyan trait. In this fanfiction, it might mean he has more access to his Saiyan instincts. Maybe he can transform more easily into a Great Ape or use some of the primal Saiyan powers that were associated with the tail.
One possible plot could be that the Weasleys might betray Hermione over a powerful magical artifact. Maybe they believe she has become too power - hungry in her pursuit of knowledge about it and they side with those who want to keep it away from her.
One possible plot could be that there is a magical rift that somehow connects the Naruto universe and the wizarding world. Hermione, being the curious and adventurous witch she is, stumbles through the rift and ends up in the Naruto world. Naruto, intrigued by this strange new girl, helps her out. As they spend time together, they start to understand each other's worlds and eventually develop feelings for each other, leading to a kiss.
Perhaps Snape discovers Hermione's extraordinary intelligence in a new way, which makes him excited. Maybe she solves a really difficult magical problem that he thought was unsolvable, and this newfound respect and admiration leads to his excitement.
Well, one possible plot could be that Hermione is in a magical cooking class where she has to use a lemon in a potion or a spell, and as part of the process, she has to lick the lemon for some strange magical reason. Maybe it's a key ingredient for a spell that requires her to taste it to activate it.
In such a fanfiction, perhaps Hermione could be blackmailed into betraying the Order. Maybe an enemy discovers a deep secret about her family and forces her to give up Order secrets.