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.
There are many great authors. One popular one might be those who have a deep understanding of the Persona 5 universe. For example, some authors who have played the game multiple times and really grasped the personalities of Joker and Ann. They can write in a way that feels true to the characters.
One interesting plot could be Joker and Ann going on a secret mission outside of the Metaverse. They face various real - world challenges that test their relationship and skills. For example, they might have to infiltrate a high - security building to gather information related to a new threat that's linked to the Metaverse somehow.
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.
Makoto is often very level - headed and she can act as a stabilizer in the group. When Akira comes up with a risky plan in the Metaverse, Makoto might be the one to point out the potential flaws and suggest improvements. Ann, on the other hand, is more carefree and might encourage Akira to be a bit more daring. For example, when they are exploring a new Palace, Ann could be the one to say 'Let's just go for it!' while Makoto would say 'Wait, we need to think this through first.'
One possible storyline could be the three of them teaming up for a special heist in the Metaverse. They might use their combined Personas' powers in unique ways to overcome the Shadows. For example, Makoto's strategic mind, Akira's leadership, and Ann's charm could all play important roles in infiltrating a difficult Palace.
In 'Persona 4 Visual Novel', the gay persona might represent the diversity of the game's character creation and the exploration of different sexual orientations within the game's fictional world. It could add more depth to the relationships and storylines.
Perhaps the fanfiction focuses on the cultural clash between the two groups. The Persona 4 characters are from a small town, while the Persona 5 crew is from the big city. Their different ways of handling things and their unique Personas could lead to some interesting interactions. For example, Yu and Joker might have different leadership styles that they have to reconcile in order to succeed against the shadows.
Without more context, it's hard to say exactly who they are. They could be a family, with Karen Ann being an individual within the Quinlan family. Maybe they are people who have had some interesting or important experiences that are worth sharing in this story.
I'm not sure specifically who 'ann b ross' is just from this phrase. It could be an author. Maybe it's someone who has created works within the realm of 'fantastic fiction' which might include elements like magic, otherworldly beings, or extraordinary adventures.