Maybe the OC has a special power in the TV World. Yukiko, being part of the Investigation Team, is intrigued by this. They embark on adventures together within the TV World, fighting Shadows side by side. Their relationship could develop from a simple acquaintance to a deep friendship. And along the way, the OC might teach Yukiko some new ways to use her Persona, leading to some interesting battles and character growth for both of them.
To write a compelling OC in relation to Mitsuru, first, give the OC a distinct personality. For example, if Mitsuru is more reserved and serious, the OC could be outgoing and humorous to create an interesting dynamic. Also, give the OC a unique backstory. Maybe they grew up in a different country or had a special encounter with a Persona at a young age that shaped their abilities. Their goals should also be clear, whether it's to become a strong Persona user like Mitsuru or to find a way to end the Dark Hour once and for all.
Well, start with a concept. Maybe your oc has a special ability that draws Ann's attention. Then, build their relationship gradually. Don't rush into making them fall in love right away. For the setting, use the locations from Persona 5 such as Shujin Academy. When writing the dialogue, make sure it sounds natural for both characters. Ann has a certain way of speaking, so your oc's dialogue should also match the tone of the story. Also, add some action scenes from the game, like battles with Shadows, to make it more exciting.
One key aspect in creating a male OC for a Persona 5 fanfiction is to give him a unique backstory. For example, he could be an exchange student from a foreign country with a troubled past that led him to Tokyo. This would add depth to his character and also provide opportunities for interesting interactions with the existing Persona 5 characters.
One common theme is self - discovery. The female OC often has to figure out her place in the world of Persona 5, discover her true self, and come to terms with her powers. Another theme is friendship. She forms bonds with the other Phantom Thieves and these relationships are explored in depth.
I really like 'The Unlikely Pairing'. It's a fanfiction where the oc is an artist who meets Ann at an art exhibition. Their relationship starts off rocky but slowly blossoms. It has some really interesting dialogue exchanges that show the chemistry between the two characters. It also delves into the world of Persona 5 in a unique way through the eyes of these two characters.
One good storyline could be an OC who is a new transfer student at Gekkoukan High School and quickly catches Mitsuru's attention due to their unique abilities in the Dark Hour. The OC could initially be a bit of an outcast but gradually forms a strong bond with Mitsuru as they work together to face Shadows. Another idea is a fanfiction where the OC has a special connection to Mitsuru's family history, perhaps uncovering secrets that were long forgotten and helping Mitsuru come to terms with her heritage. There could also be a storyline where the OC is from a rival organization but ends up falling for Mitsuru and has to choose between loyalty to their group and their new - found feelings.
The architecture in Persona 5 is also very distinct. Your male OC could have a special connection to a particular location in the game, like Leblanc coffee shop. Maybe he works part - time there and has some interesting conversations with Sojiro. This would help to ground him in the game's environment.
Many 'shinji x oc persona fanfiction' explore the theme of identity. The OC might be from a different background or have a unique personality, and the story delves into how they fit into the 'Persona' world. There's also the theme of redemption. If Shinji has some flaws or past mistakes, the relationship with the OC could be a path for him to redeem himself. And of course, the theme of growth is common. Both characters grow and develop as they interact with each other in the story.
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.