It could also be that Superman underestimates Danny's powers. Danny has his own set of unique abilities as a half - ghost. When Superman dismisses him or tries to boss him around, Danny stands up for himself and tells Superman off. He might show Superman some of his cool ghost powers like intangibility and invisibility in a rather sassy way to prove that he's not someone to be pushed around.
If we consider the fact that Danny Phantom operates in his own territory of Amity Park, he has an advantage. The Ghost Zone and its rules are something he's familiar with. Superman, on the other hand, is in an unfamiliar environment. Danny could use the local ghostly energy to boost his powers and tell Superman off in a more forceful way. However, Superman's unwavering sense of justice might make him reluctant to use his full power against Danny, which could also influence the outcome of their confrontation.
Well, it could be that Danny Phantom is angry because Superman's actions in a particular situation are causing problems in the ghost zone. Maybe Superman's heat vision accidentally disrupted some important ghostly energy source, and Danny, being the protector of the ghost zone, yells at him to be more careful.
In this fanfiction, it could be that Danny Phantom meets a Danny Phantom from a parallel fan - made story. At first, they don't trust each other. But as they learn more about each other's worlds, they realize that there are some common elements that are being threatened. It could be that a powerful ghost is trying to rewrite all the fanfic universes related to Danny Phantom. So, they must combine their strengths and knowledge to stop this from happening.
In many fanfictions, a plot point could be the exploration of the differences in their power sources. Superman's powers come from the sun, while Danny's are related to the Ghost Zone. This can lead to interesting scenarios where they either learn from each other or try to use the other's power source against them. Another common plot point is the reaction of the people around them. How do the citizens, Lois Lane, or Danny's friends react to this encounter between the two powerful beings?
The plot could be centered around a mystery. A strange series of events start happening in Amity Park and it seems to be related to some new technology that Dr. Drakken has created. Danny Phantom investigates and runs into Shego. They start off as adversaries but as they dig deeper, they realize they need to work together to solve the mystery. Maybe there's a hidden force that is using Drakken's tech to open portals to the Ghost Zone and release dangerous ghosts, and only Danny and Shego can stop it.
Well, in the 'danny phantom is a lion fanfiction', it could be that Danny is cursed to become a lion at times. As a lion, he discovers new aspects of the ghost world. For example, there could be a group of lion - like ghosts that only communicate with him when he's in lion form, and they tell him secrets about his powers or his family's past that he didn't know before.
One possible plot could be that Izuku discovers the existence of Danny Phantom through some kind of interdimensional event. He then tries to learn from Danny's way of handling his powers and his secret identity, applying those lessons to his own journey as a hero in training.
One idea could be that Danny Phantom's ghost powers somehow interact with Superman's Kryptonian abilities in a strange way. Maybe their powers cross and create new, unexpected powers in both of them.
A possible plot could be that Maddie is trying to create a device that can communicate with ghosts in a more peaceful way. Danny, being half - ghost, is both excited and a bit worried about this. Lemon, who has a more open - minded view on the supernatural, encourages Maddie. Danny then gets involved in the project, and they face many challenges along the way. For example, some other ghosts might not want humans to be able to communicate with them so easily, and they try to stop the project. This could lead to a story full of drama, with Danny having to use his powers to protect Maddie and Lemon while also trying to support Maddie's scientific goals.
The plot could involve some sort of mystery related to the pregnancy. Like, there could be a ghostly force that is either helping or hindering the pregnancy. And they have to figure out what it is and how to deal with it. Also, their friends like Tucker could play important roles in supporting them.