For writing her character, you need to think about her place in the wizarding world. She's the daughter of a controversial figure. So, she might be constantly in the spotlight. This could make her either shy away from attention or use it to her advantage. Her magical abilities should also be developed in a way that makes sense. Maybe she has a natural aptitude for some spells that Snape was also good at, but she struggles with others. Her relationship with her peers is crucial too. She could be a bit of an outcast at first, but as the story progresses, she forms deep bonds. You can also explore her emotions towards her father's death and how it affects her growth as a witch.
In these fanfictions, Snape often becomes more self - reflective. He starts to realize the full extent of his actions and how they've affected others. For example, he might come to see how his treatment of Harry was unfair. He also becomes more open about his emotions, which was something he always hid before.
One great Severus Snape daughter fanfiction is 'The Snape Legacy'. In this story, his daughter has to navigate the complex world of Hogwarts while carrying the weight of her father's reputation. It shows her growth from a shy girl to a powerful witch, with interesting plot twists involving her relationships with other students and teachers.
In some fanfictions, Severus Snape's character develops by becoming more open - minded towards Muggles. He might start off with his typical wizarding - world prejudices, but through various interactions, he begins to see Muggles in a new light. For example, he could meet a Muggle scientist whose thirst for knowledge reminds him of his own love for potions, and this changes his view.
One common theme is identity. Since she is Snape's daughter, she often struggles with defining herself apart from her father's complex legacy. Another theme is acceptance, both from the Hogwarts community and within her own family. For example, in many fanfics, she has to prove herself worthy to be in Slytherin like her father.
In some fanfictions, her plot could revolve around time - travel. She might accidentally travel back in time and meet her father when he was a student. This would give her a chance to see a different side of him and understand his choices better. She could also try to change some events in the past to make a better future. However, this would bring a lot of consequences and she would have to deal with the butterfly effect in the wizarding world.
Snape's character changes in his relationship with others too. He becomes more involved with the Hogwarts community as he is now responsible for Harry. He might start to collaborate more with other teachers, like McGonagall, who he previously had a rather cold relationship with. His attitude towards the students also changes as he realizes that they are just kids trying to find their way, much like Harry. This is a big shift from his usual strict and often unforgiving self.
Snape's character often becomes more open - minded. In many such fanfictions, being around the Marauders, who are generally more carefree and adventurous, forces Snape out of his shell. He starts to see things from different perspectives, rather than just being the brooding loner he was originally.
Snape's character could become more complex. He might start to incorporate some of Merlin's wisdom into his own actions. For example, Merlin was known for his ability to see the good in people, and Snape could start to do the same. Instead of just being bitter and resentful towards Harry, he could start to see Harry as a potential ally in a greater fight, much like Merlin saw the potential in the young knights of Camelot.
In this fanfiction, Severus Snape's character is likely to be explored in depth. His 'heart' could refer to his hidden emotions, his capacity for love or loyalty that was often masked in the original series. It might show his softer side that was rarely seen, perhaps in his relationships with other characters like Harry or Lily.
There's also 'Shadows of the Past'. This one focuses more on the daughter's relationship with the other characters who knew her parents. She has to face the prejudices some have towards her because of her father, while also trying to uphold the good name of her mother. The plot is full of twists and turns that keep you hooked from start to finish.