The plot could be that Ember has changed her ways a bit. She is no longer as much of a troublemaker. Danny, on the other hand, has always been intrigued by her. They start to spend more time together, sharing their experiences in the Ghost Zone. Then, a prophecy emerges that says their union could bring peace between the living world and the Ghost Zone. This leads them to consider getting married. However, they have to first convince Danny's parents that it's a good idea, which is a whole different kind of adventure.
A plot could start with Ember being cursed to lose her powers unless she finds true love. Danny, being the kind - hearted hero he is, tries to help her. As they search for a way to break the curse, they go on various adventures together. Along the way, they start to develop feelings for each other. The curse is eventually broken not by some magical spell but by the power of their love. This leads to their marriage. After getting married, they have to deal with the jealousies and rivalries of other ghosts who either wanted Ember for themselves or didn't like Danny's interference in the ghost world.
Well, it could be really interesting. Maybe it would start with Danny being a bit hesitant at first, given Ember's wild nature. But then they might find common ground in their love for music, since Ember is a rocker. They could have a wedding that's a mix of the human world and the Ghost Zone, with all their friends and foes in attendance. It would be a story full of adventure as they face challenges together as a married couple.
One possible plot could be that Danny has finally defeated all the major ghosts threatening Amity Park. With the town at peace, he realizes his true feelings for Sam. They start planning a simple wedding. However, some of Danny's ghost enemies, not fully defeated, try to disrupt the wedding to get revenge on Danny. But with the help of their friends Tucker and Danny's family, they manage to fend off the attacks and have a beautiful wedding in the park, surrounded by their loved ones.
Danny and Ember's wedding day was filled with both chaos and beauty. Danny was nervous as he stood at the altar waiting for Ember. Ember, on the other hand, was excited. She had finally found someone who accepted her for who she was. The ceremony was held in a special place between the human world and the Ghost Zone. There were floating candles everywhere and music that seemed to come from the very essence of the afterlife. They held hands and said their 'I dos', and from that moment on, they were united.
One possible plot could be that Danny, Sam, and Ember find themselves in a situation where they have to get married for some supernatural reason. Maybe to stop an evil force that can only be defeated by the power of their combined bond. Along the way, they have to deal with their own differences and learn to live together, all while facing challenges from the ghost world and the human world.
One possible plot could be that Danny and Ember, after many battles and a growing understanding of each other, start to have feelings. They secretly date and then decide to get married. Their marriage causes a stir in both the human and ghost worlds. Danny's friends are initially shocked but then come to accept it as they see how happy he is. Ember has to adjust to the idea of being part of Danny's human family too.
Well, perhaps Danny could be raised by Ember in a world where she has some sort of maternal instinct. Maybe she teaches him her unique brand of ghostly powers and how to use music as a weapon or tool, like she does. It could lead to Danny having a very different approach to being a half - ghost.
I'm not sure if there is such a fanfic. There are a lot of fanfics out there, but this concept might be a bit unusual or even against the original tone of the 'Danny Phantom' series. It's possible that some fans might create such a story in the realm of fanfiction, but I haven't personally come across it.
One possible fanfiction could involve Danny finally confessing his true feelings for Sam after a big ghost - fighting adventure. They realize they can't live without each other and decide to tie the knot. Their friends Tucker and Jazz are super excited and help plan a unique wedding that combines both their human and ghost - related interests.
A major plot twist could be that Danny discovers that Ember was forced to marry him for some hidden reason. Maybe she was trying to protect him from a greater evil in the Ghost Zone by getting closer to him. Or perhaps there's a prophecy that says their union will either save or destroy the Ghost Zone, and they have to figure out which it is. Also, there could be a twist where the human world starts to suspect Danny's relationship with Ember and things get complicated as he tries to keep his two lives separate.