What could be the plot of 'persona 5 meets persona 4 fanfiction'?

Maybe there's a strange distortion that merges parts of Inaba and Tokyo. The characters from both Persona 4 and Persona 5 find themselves in this strange new place. They start to notice that the Shadows in this merged world are more powerful and have new abilities. The Investigation Team and the Phantom Thieves must figure out how to adapt their Personas and strategies to fight these new threats while also dealing with the cultural differences between their two groups.

Maybe the Velvet Room attendants from both games somehow get their worlds mixed up. Igor from Persona 5 and Margaret from Persona 4 have to work together to set things right. This leads to the characters from both games interacting. The Phantom Thieves might learn some new combat techniques from the Investigation Team and vice versa. They could then use these new skills to face a common threat that emerges from the merging of their two realities.

A great plot could be that a new threat emerges that has the power to erase the memories of people in both Persona 4 and Persona 5's worlds. The characters from both games must work together to find the source of this threat. The Phantom Thieves could use their infiltration skills, while the Investigation Team could use their detective - like skills to gather clues. As they progress, they discover that the root of the problem lies in an ancient evil that was once sealed away but has now been awakened due to some modern - day events.

I think Yu and Joker would be really interesting. Yu is a calm and collected leader in Persona 4, while Joker is more of a cool and strategic leader in Persona 5. Their different approaches to leading their teams could create some great drama and cooperation.

Well, perhaps the story could start with a strange distortion in the Metaverse that links the two universes. Some of the characters from Persona 4 start having dreams about the events in Persona 5's Tokyo, and vice versa. This leads to a meeting between the two groups. They then discover that an ancient evil, long forgotten in both their histories, is trying to use the connection between the two worlds to gain enough power to rule over everything. The characters would have to learn about each other's powers and personalities quickly in order to stand a chance against this new foe.

One idea could be the characters from Persona 4 and Persona 5 swapping their worlds. So the Phantom Thieves end up in Inaba and have to deal with the Midnight Channel mystery. And the Investigation Team finds themselves in Tokyo and gets involved in the Metaverse. It would be really cool to see how they interact with the different environments and characters.

Perhaps the story could revolve around a mystery related to Minato's transformation into a girl. There could be some dark force at work that caused this change, and Minato, now in a girl's body, has to figure out what it is and how to reverse it. Along the way, she might meet new allies who help her in her journey.

In this fanfiction, the OC could be a detective - in - training who comes to Inaba to solve some cold cases. Yukiko gets involved when some of these cases seem to be related to the TV World. They team up, with Yukiko providing her knowledge of the town and the OC using their detective skills. As they work together, they develop feelings for each other. But they also have to deal with the danger of the Shadows and a mystery figure who seems to be controlling them, all while trying to figure out their relationship.

One possible plot could be that the characters from RWBY end up in the Persona universe and have to learn how to use Personas to fight the Shadows. For example, Ruby could discover her Persona is related to her speed and scythe skills, and she uses it to quickly dispatch enemies. The team would also have to deal with the social aspects of the Persona world, like building relationships to strengthen their Personas.

One idea could be that the characters from Persona 5 end up in the Harry Potter world. They could use their Personas to fight against the dark wizards. For example, Joker could use Arsene to take on Voldemort's Death Eaters.