In a fanfiction like this, their relationship could develop in a very complex way. Harry, as a mafia boss, has a certain charm and power that Daphne might initially be repelled by but also secretly intrigued with. Daphne, on the other hand, has her own allure. Her beauty and grace combined with her sharp mind could catch Harry's attention. As they are thrown into various situations together, perhaps a power struggle within the wizarding mafia or a threat from outside forces, they begin to understand each other on a deeper level. Harry starts to open up about his reasons for being in the mafia, like his desire to bring justice in a world that the Ministry of Magic fails to fully regulate. Daphne begins to see the man behind the mafia boss persona, and this new - found understanding leads to the growth of their relationship. It could be a slow - burn relationship that builds over time as they face numerous challenges and overcome them together.
At first, Harry and Daphne's relationship could be based on mutual suspicion. Harry may think Daphne is trying to infiltrate his mafia operations for some other powerful wizarding family, and Daphne may be wary of Harry's new and dangerous lifestyle. However, as time goes on, they are forced to work together on a task. During this time, Harry shows Daphne the parts of the wizarding underworld that are in need of change and protection, and Daphne shares her knowledge of the wizarding society's upper echelons with Harry. This sharing of knowledge and experiences draws them closer. They start to rely on each other more and more, and slowly, romantic feelings begin to develop between them.
Their relationship could develop as a partnership based on mutual curiosity. Harry's Sharingan is a mystery, and Daphne's eagerness to understand unusual magic brings them together. They might start as friends, sharing their knowledge and experiences, and gradually grow closer as they face challenges related to the Sharingan in the wizarding world.
It could start with a simple conversation in the library. Daphne might be reading a book on dark magic defenses and Harry asks her about it. From there, they start to exchange knowledge and stories. As they learn more about each other's pasts and dreams, their relationship blossoms into a deep friendship or even something more romantic.
It could develop into a strong friendship. Since they meet as babies, they grow up with a sense of familiarity. They might trust each other more than others and always be there for one another.
In the fanfiction, their relationship could develop in a rather unexpected way. Since they live together, they are constantly in each other's presence. Harry might start to teach Daphne some of his Quidditch moves in the backyard, and Daphne could introduce Harry to some of the more sophisticated Slytherin social etiquette. As they engage in these activities together, they start to respect and admire each other more. Eventually, this could lead to a romantic relationship or a very deep friendship depending on how the author wants to take the story.
The relationship could develop through shared interests. Say they both have a passion for ancient magic. They start discussing it in the library, and as they do, they find themselves drawn to each other more and more. Their conversations grow deeper, and before long, they realize they're in love. Harry might share his experiences with Voldemort with Daphne, and Daphne could open up about her family's expectations. This mutual sharing of personal and difficult things would strengthen their bond.
They might start as acquaintances. Harry could notice Daphne's intelligence during a Hogwarts class reunion. Daphne, on the other hand, might be drawn to Harry's courage. Their relationship could develop slowly as they start to exchange letters about magical theories. As time passes, they meet up more often, and feelings start to grow.
At the start, it might be very rocky. Harry would be resentful of being forced into this situation. But Daphne, being a strong - willed character, would try to make the best of it. She might start by trying to get to know Harry better. Over time, Harry could see that Daphne is not what he expected, and they could start to have some common interests, like a love for magical creatures. This could lead to a slow - building friendship and then potentially more.
In a Yule Ball fanfiction, their relationship might develop through a series of misunderstandings at first. Daphne might think Harry is just another Gryffindor show - off, while Harry might think Daphne is a typical Slytherin snob. But during a dance, they get to really talk. Harry realizes Daphne is actually very kind and intelligent. Daphne sees that Harry is more than just the famous Boy Who Lived. This new understanding could lead to a budding relationship where they start to spend more time together after the ball, exploring the Hogwarts grounds and sharing their dreams.
Well, in canon, Harry is mainly involved with Ginny. But in a fanfiction with Daphne, their relationship would be more of a slow - burn mystery. Since Daphne is from Slytherin and Harry has his Gryffindor ideals, there would be a lot of initial conflict and mistrust. Their relationship might develop out of a mutual need to survive in a darker wizarding world, rather than the more typical romantic beginnings in the original story.
The relationship could also develop through cultural exchange. Daphne, being from a pure - blood Slytherin family, has different values and traditions compared to Harry. As they get to know each other, they introduce their respective cultures to one another. This leads to a deeper understanding and a more profound emotional connection between them.