At first, it could be very tense. Harry might be reluctant to submit, but as time goes on, he starts to see Snape in a different light. This could lead to a grudging respect. For example, Snape might show Harry some advanced potions techniques that no one else has taught him, which makes Harry realize Snape's value.
Perhaps in this fanfiction, Harry submits to Snape in order to gain access to some important information. Snape might be in possession of secrets about Harry's family or his own powers that he refuses to share unless Harry shows complete obedience. So, Harry decides to submit to Snape's demands in order to uncover these mysteries that are crucial for his journey as a wizard.
Obviously, Harry Potter and Snape are the main characters. Harry, with his courage and leadership, and Snape, with his complex past and skills. But other characters like Hermione and Ron could also play important roles. They might be the ones who first notice the change in Snape's behavior towards Harry and help Harry deal with this new situation.
One possible interesting plot could be Snape having to follow Harry Potter's lead in a dangerous mission. Maybe they are in a situation where Snape has no choice but to trust Harry completely, which is a big change from their usual relationship in the original books.
One possible plotline could be that Hermione is forced to work under Snape in a special project. She initially resists his strict methods but gradually comes to understand his perspective and submits to his more experienced guidance in potions or some other area of magic. For example, Snape might be in charge of a top - secret research project and Hermione, with her brilliant mind, is chosen to assist. Through their interactions, she realizes that his seemingly harsh demands are actually aimed at achieving the best results.
There might be some out there, but this is a rather dark and unorthodox concept for a fanfiction. It goes against the typical heroic narrative of the Harry Potter series. However, different people have different interpretations and some might explore this idea in a creative way that still stays within the boundaries of good storytelling, but it's not a common or widely - liked theme.
In this fanfiction, Hermione may develop a new sense of humility. Submitting to Snape, who is a master of potions and magic in his own right, makes her realize that she still has a lot to learn. Snape may develop a sense of responsibility towards Hermione. He realizes that he has an influence on her growth and starts to mentor her more actively, leading to a transformation in their relationship.
One possible plot could be that Harry is magically compelled to submit. Voldemort might use some dark magic or a powerful artifact to control Harry's mind. Another plot could be that Harry submits out of a false belief that it will save his friends. For example, Voldemort could deceive Harry into thinking that if he surrenders, his friends will be spared. Or perhaps Harry is so worn down by the fight that he gives in, thinking there's no other way, and then the story could explore how Voldemort uses Harry's submission to his advantage, like making Harry a tool to gain the loyalty of other wizards.
There's also 'Hermione's Choice' which delves into a situation where Hermione submits to Harry's judgment during a dangerous encounter with a dark magic threat. The story explores how their different skills and perspectives come together, with Hermione trusting Harry's instincts and they work together to overcome the danger.
Another way Snape could comfort Harry is by standing up for him in certain situations. Maybe when other teachers or students are being unfair to Harry, Snape steps in and defends him. This act of protection can be a great source of comfort for Harry, as it shows that someone is on his side even if they have had a rocky relationship in the past.