They develop Snape's character in a way that his snarkiness has a certain charm. For example, his snarky comments could be a sign of his intelligence and quick - wittedness. Hermione, being a smart character herself, would be attracted to that. Also, they might show a side of Snape that is vulnerable beneath the snark, which Hermione could be drawn to.
One way is by showing a progression in Hermione's feelings. At first, she might be annoyed by Snape's snarkiness, but as she spends more time with him in the fanfiction, she starts to see the deeper meaning behind his words. The writers could also create a shared interest or goal between them. For instance, they both have a passion for a certain type of magic that is not well - known. This common ground makes Hermione more likely to overlook Snape's snarky exterior and be attracted to him.
Fanfiction writers make it believable by building a backstory for their relationship. Maybe they create a situation where Hermione and Snape have to work together on a project. During this time, Snape's snarky remarks gradually become endearing to Hermione as she gets to know him better. They also might give Snape some redeeming qualities that Hermione would find appealing, like a hidden kindness or a strong sense of justice that is masked by his snark.
Maybe she would say something like 'Snape, your constant glares don't intimidate me. I've faced far worse than you in the library stacks.' Here, Hermione is using her love for the library and her knowledge - seeking adventures as a way to snarkily put Snape in his place, implying that his attempts at intimidation are nothing compared to what she has endured in her academic pursuits.
Maybe Snape has a difficult spell he can't seem to master, and as much as he hates to admit it, Hermione's academic prowess makes her the best person to ask for help. He approaches her in a very snarky way, but she sees through his facade and decides to assist him. This could lead to an interesting dynamic where they start to respect each other more.
Writers can make it believable by first establishing the context clearly. For example, if it's a battle scene, they should describe the chaos and danger well so that Hermione getting hurt seems natural. Also, they need to accurately portray the consequences of her injury, like how it affects her movement or her ability to use magic.
The conflict could be Snape's pride. He is a proud man and asking for help, especially from a student like Hermione, goes against his nature. So he constantly battles his own ego while Hermione has to deal with his snarky remarks.
Writers can make it believable by developing the Death Eater's character well. Show that there is more to him than just being evil. Maybe he has a troubled past or some redeeming qualities. Also, show Hermione's internal struggle. She's a smart and moral character, so her falling for a Death Eater would need a lot of self - reflection and conflict.
Writers often focus on their shared traits. Both Naruto and Yoruichi are strong - willed. Naruto is determined to become Hokage and Yoruichi is a powerful figure in the Bleach universe. By showing how they admire each other's strength, it makes their relationship more believable. For example, when Naruto sees Yoruichi's combat skills, he is in awe, and Yoruichi respects Naruto's growth as a ninja.
One reason could be that Hermione is a very intelligent and confident character. In the original story, Snape is often unfair to her and her friends. So in fanfiction, she might be snarky as a form of standing up to him. For example, when Snape makes a snide comment in class, Hermione, being the quick - witted girl she is, might fire back with a snarky remark to show that she won't tolerate his attitude.
Writers may also show their relationship as a slow - burn friendship. Given their differences in personality and past experiences, it starts with mutual suspicion. But as they are forced to work together on a project, perhaps something related to Hogwarts' restoration after the war, they start to see each other's true selves. Hermione sees Snape's hidden kindness and Snape sees Hermione's strength and loyalty. Their relationship evolves as they exchange stories and magical knowledge.
First, you need to be well - read in Snape fanfiction. Know the common tropes and characterizations. Then, find a platform where Snape fanfiction is discussed, like a dedicated forum or a fanfic - specific social media group. Start by making a light - hearted, snarky comment about a general aspect of a Snape fic you've read, such as 'That Snape in this fic is more brooding than a storm cloud!' and see how others respond.
Fanfiction writers make it believable by showing the reactions of the other characters. If Hermione is researching frantically, and the doctors in the wizarding world are stumped, it gives the impression that this is a serious and real situation. Also, by making Harry's character arc focus on his acceptance of his fate, it mirrors what many real - life cancer patients go through, which helps the reader believe in the story.