There could be a story where Danny Phantom discovers that Johnny 13 and Kitty are being controlled by an evil force. Danny then has to figure out how to break the control without harming them. It could involve a lot of detective work, like finding the source of the control and the motives behind it. Another idea is that Johnny 13 and Kitty want to change their 'bad guy' image and ask Danny for help. Danny is hesitant at first but then realizes that they might be sincere. So, he starts to train them to be more like 'good ghosts', which is full of humorous and touching moments as they struggle to adapt.
Well, a cool plot could be that Danny Phantom accidentally gets involved in a feud between Johnny 13 and Kitty. Maybe they blame Danny for something he didn't do, and he has to prove his innocence. Or perhaps there's a race in the Ghost Zone, and all three of them enter. Along the way, they face various obstacles and have to learn to cooperate despite their differences. Also, a story where they all get trapped in a different dimension and have to find their way back home while dealing with the strange creatures there.
One idea could be that Danny discovers a new ghostly power that he uses to take revenge on a group of bullies who have been tormenting his friends. He could use his intangibility in a creative way, like sneaking into their lockers and making their things disappear.
One idea could be Danny Fenton having to deal with a new ghostly enemy that can manipulate time, making his double life as Danny Phantom even more chaotic. Another could be Danny trying to balance his high school life, including exams and relationships, while also facing a ghost invasion that only he as Danny Phantom can stop. Or perhaps a story where Danny Phantom discovers a hidden power within himself that has a connection to his human side, Danny Fenton.
One character that would be really interesting to pair with them is Ember. Her ability to control people through music could add a whole new layer of plot. Maybe she gets involved in a plot that affects Danny, Johnny 13 and Kitty, and they have to stop her. Another great character is Youngblood. His childish and mischievous nature could contrast with the more serious nature of some of the others. He could cause trouble that they all have to clean up together. And Clockwork, he could be a guiding figure, manipulating events from the background and making sure things don't go too far out of control when these characters interact.
A really engaging storyline could be a time - travel one in Danny Phantom x Kitty fanfiction. Maybe they go back in time to prevent a disaster that would change the entire ghost - human world balance. Along the way, they learn more about each other's pasts and how their fates are intertwined. It could be full of mystery, action, and some really touching moments between the two characters.
One idea could be that Danny gets an illness that affects his ghost powers. For example, he might start losing control over his intangibility or invisibility. This could lead to some really comical or dangerous situations. Another idea is that his friends try to find a cure for his strange ghost - related illness while also keeping it a secret from the town.
Well, a great plot for Danny Phantom future fanfiction could be that Danny discovers a way to travel to different dimensions in the Ghost Zone. In these dimensions, he finds versions of himself with different powers and personalities. He then has to figure out how to use this knowledge to save his own dimension from a powerful ghost that is slowly draining the life force of the living world. It could involve a lot of self - discovery for Danny as he learns from his other - selves.
Maybe Ophelia has some sort of special power herself that she doesn't know about until she meets Danny Phantom. They could go on a journey to figure out what her power is and how it can be used to help the town. It would be a great way to explore both of their characters in a new light.
One idea could be that Danny discovers a new power that has been dormant all this time. Maybe it's a power related to time manipulation, which could lead to some really cool adventures where he has to fix time - related problems in the Ghost Zone or in the human world. Another plot could involve Danny meeting his future self who has come back to warn him about a great danger that is coming. This could create a lot of mystery and suspense as they try to figure out what the danger is and how to stop it.
Well, you could write a story where Danny's sister, Jazz, discovers a new power within the family. This power is related to the family's connection to the ghost world in a way they never expected. The family then has to deal with this new development, and it causes some rifts and also some closer bonds as they try to understand it. They might also have to face off against a new enemy who is interested in this new power within the family.
Well, here's a plot. In a strange turn of events, Danny's ghost powers start to interact with alicorn magic in unexpected ways. This causes chaos in both worlds. The alicorn and Danny must work together to figure out how to stop the strange energy fluctuations. They might have to travel to different dimensions within their universes to find a solution. Along the way, they meet other characters from both franchises who either help or hinder their progress.