The plot could start with Serafall being intrigued by the tales of Harry Potter that reach her realm. She decides to seek him out using her powerful magic. When they meet, Harry is initially cautious but soon realizes that Serafall has a good heart. Their relationship develops slowly as they learn about each other's cultures. For the marriage to happen, they have to combine the traditions of the wizarding world and Serafall's world. This could include a magical ceremony where they exchange unique magical artifacts as a symbol of their union.
Well, it might be that in this fanfic, there's a prophecy that links Harry and Serafall together. Harry, who has always been tied to prophecies, is a bit skeptical at first. Serafall, on the other hand, is more open to the idea. As they start to spend time together, they find that they can complement each other's powers. Harry's skills in defensive magic and Serafall's more flamboyant and powerful magic create a unique combination. Their marriage then becomes a symbol of unity between two very different magical entities, and they work together to face threats that target both of their worlds.
One possible plot point could be the initial meeting. Maybe Harry, in his 'godlike' state, stumbles upon Serafall's realm and they are instantly intrigued by each other. Another could be the challenges they face due to coming from different worlds, like cultural differences in their magical practices.
One possible plot could be that Naruto and Serafall meet through some sort of interdimensional event. They initially have misunderstandings due to their different worlds and cultures. But as they get to know each other, they find common ground in their strong wills and desires to protect. Eventually, they fall in love and decide to get married, facing opposition from some who don't believe in cross - dimensional relationships.
There could also be a group of dark mages who want to use the chaos of this inter - dimensional relationship for their own gain. They might try to manipulate Harry and Serafall's families and friends against the marriage, and then when things are at their worst, try to steal their combined magical power which they believe will be extremely potent when Harry and Serafall are united through marriage.
One possible plot could be that Naruto, in his devil form, meets Serafall in the underworld. They start off as rivals, constantly competing in various devilish tasks or battles. But as time goes on, they begin to see the good in each other. Naruto's strong sense of justice and loyalty, which he carried from his shinobi days, intrigues Serafall. And Serafall's charm and power attract Naruto. Eventually, they fall in love and get married, uniting the power of the shinobi world and the devil world in a unique way.
Sorry, I don't have a particular 'godlike harry potter married to serafall fanfic' to recommend. However, when looking for such a fanfic, it would be interesting to see how the two different universes, that of Harry Potter and the one with Serafall, are combined. Maybe the author would blend the magic systems in a unique way, or create a whole new world where their relationship can develop. But you'll have to search through the fanfic archives to find it.
Sasuke would be a great side character. He could be skeptical of Serafall at first, thinking she might be a threat to Naruto or the ninja world. But as he sees how much Naruto loves her, he slowly accepts it. Grayfia from Serafall's world could be another side character. She might be tasked with helping Serafall adjust to her new married life in Naruto's world, and her strict and efficient nature could lead to some comical situations.
Naruto's devil powers could be enhanced by Serafall's magic. For example, Naruto's ability to create clones might be combined with Serafall's illusion magic to create even more powerful and deceptive clones. His rasengan could be infused with Serafall's demonic energy to become a more destructive attack.
Their relationship might start slowly. Naruto, being a bit of an outsider in Serafall's world at first, would have to learn the ropes. Serafall would be charmed by Naruto's naivete in some ways and his strong will. They would gradually share their pasts, with Naruto talking about his life as an orphan and his dreams for the Hidden Leaf, and Serafall sharing her own story in her world. As they grow closer, they would start to rely on each other more, Naruto learning some magic from Serafall and Serafall picking up some ninja skills from Naruto. Their relationship would develop into a deep love as they face challenges together and realize how much they mean to each other.
The plot could start with Serafall being intrigued by Naruto's chakra. She visits the Naruto world out of curiosity. Naruto, always friendly to strangers, shows her around. They quickly become friends and find that they have a lot in common in terms of their goals - both want to protect their respective worlds. As their friendship blossoms into love, they plan their wedding. However, there are villains who don't want this union to happen. These villains try to create misunderstandings between them and also threaten the safety of both worlds. But Naruto and Serafall, with the help of their friends, overcome all these obstacles and finally get married, with a grand ceremony attended by both humans and beings from Serafall's world.
The combination of two different and popular fictional universes makes it interesting. Harry Potter has its own set of magic, characters, and lore, and Serafall brings in a whole new set of elements. When combined, it creates a unique and exciting blend.