To develop their relationship, the story could include moments where they misunderstand each other, like when Nate accidentally blames Katie for losing a valuable Youkai item. But then, through forgiveness and working together to find the item again, their relationship can become stronger. Also, having them support each other's dreams in the Youkai Watch world, like Katie helping Nate to become a better Youkai Watcher, would be great for relationship development.
One idea could be Nate and Katie teaming up to solve a mystery in the Youkai Watch world that involves a powerful and mischievous youkai. Maybe they have to find a special item to stop this youkai from causing chaos in their town. Another could be a story where they accidentally switch bodies and have to figure out how to reverse it while still dealing with their daily youkai - related tasks.
The relationship can be developed through shared adventures. For example, when they go on quests to find rare Yo - Kai items or solve puzzles in the Yo - Kai world.
Jibanyan would be a great addition. He's Nate's main yo - kai partner, and his goofy yet brave personality can add a lot of humor and action to the story. For example, he could get into some trouble while trying to protect Nate and Katie.
To write a yo kai watch nate x katie fanfiction, you need to know the characters well. Research their personalities from the original series. For example, Nate is brave and curious. Katie is smart and often has her own unique take on things. Use these traits in your story. Also, include some of the popular Yo - Kai from the show to make it more authentic. You can start with a simple idea like Nate and Katie trading Yo - Kai and then build on it as you write.
There could be a fanfiction where Nate and Katie team up to solve a mystery in their town related to Yo - Kai. Maybe some Yo - Kai are causing strange happenings and they have to use their combined knowledge and skills to figure it out. This type of story would show their teamwork and how they complement each other.
For Nate, you could develop his character by having him face his fears. Maybe he's afraid of a certain type of Pokemon, and through his adventures with Yancy, he overcomes that fear. Yancy could be developed by showing her more vulnerable side. For example, if she usually seems confident, but then she loses a big Pokemon battle and has to learn to pick herself up again.
In a married Nate and Serena fanfiction, their relationship can be developed realistically by showing how they handle financial matters. Maybe they have different spending habits. Nate might be more conservative while Serena is more of a spender. They need to find a balance. Additionally, family planning can be a big part of their relationship development. Deciding whether or not to have children and when can bring out different sides of their personalities and how they interact with each other.
A really unique way to develop their relationship could be through a time - travel plot. Maybe they both get sent back to a different era in the Upper East Side's history. There, they have to rely on each other to survive and adapt. This would not only test their relationship but also give them a chance to see how their families' legacies have shaped who they are today. They could come back to the present with a much stronger bond.
For Big Nate, his competitiveness could be explored more. In the fanfiction, he could enter a skateboarding competition, and Gina could be there to support him. This would show his determination and also how he reacts to pressure. His sense of humor could also be highlighted, like when he makes jokes to ease the tension during a difficult situation. As for Gina, her studious nature could be developed by having her tutor Big Nate in a subject he's struggling with. This would also show her patience and kindness.
For Katie, she could be developed by giving her more complex emotions. For example, instead of just being a meek character, she could have moments of great strength and determination. Maybe she has a secret dream that she's been too afraid to pursue until she meets Luke. Luke, on the other hand, could be developed by showing his insecurities. Despite his seemingly confident exterior, he could be afraid of not living up to his family's expectations. Their relationship could then be a journey of them helping each other overcome their respective fears.