One possible plot development could be that they initially try to get the marriage annulled but as they spend more time together dealing with the legalities, they start to develop real feelings for each other.
One way to find such a fanfic is to join Yu - Gi - Oh! fan groups on social media platforms like Facebook or Reddit. Fans often share their favorite fanfics in these groups. You can post a request asking for 'accidently married seto and joey fanfic' and I'm sure some fans will be able to point you in the right direction.
In 'cook joey seto fanfic', a common theme might be self - discovery. As they engage in cooking, they could discover new things about themselves or their abilities. Also, the theme of cooperation can be present, where they work together in the kitchen to create amazing dishes.
One common theme is rivalry - their long - standing competitive nature in the Duel Monsters realm. This often serves as a starting point for the relationship to develop.
Seto's usually cold and calculating personality might soften. He could start showing more vulnerability around Joey. For example, he might let Joey see him without his usual confident facade when they're alone. Joey, on the other hand, might become more responsible. His impulsive nature could be tempered as he realizes he has someone he really cares about in Seto.
A common theme could be the exploration of their relationship dynamic. Given their different personalities in the original Yu - Gi - Oh! series (assuming they are from there), fanfics might focus on how they overcome their differences. For example, Seto's cold and calculating nature vs Joey's more hot - headed and impulsive one.
I'm not sure specifically which 'cook joey seto fanfic' is really good. You could try searching on some popular fanfic websites like Archive of Our Own. There might be various works related to it that you can explore based on tags and reviews.
Another great 'joey x seto fanfic' could be 'A New Alliance'. This fanfic starts with Joey challenging Seto to a series of duels with a wager. As the duels progress, they begin to understand each other on a deeper level, and the story unfolds with some really interesting character development.
In a great Seto Kaiba x Joey Wheeler fanfic, the relationship development is key. It should be believable and not rushed. The writer needs to show how they gradually come to understand and care for each other. Also, the writing style is important. A vivid and engaging style can bring the story to life, making the reader feel as if they are right there with Kaiba and Wheeler. Good fanfics might also incorporate elements from the Yu - Gi - Oh! universe in an interesting way, like using the Duel Monsters cards as a metaphor for their relationship.