In this fanfiction, their relationship could develop further. There could be some romantic undertones as they journey together. They might share their dreams and fears under the starry sky at night. And perhaps they work together to solve a big mystery in the Pokémon world that has been hidden for a long time.
One possibility could be that Ash comes back from war a changed man. He might have seen a lot of hardships and death, which makes him more mature. When he reunites with Serena, their relationship could be a bit strained at first. Maybe he has some PTSD and Serena has to help him through it, and in the process, their bond deepens more than ever.
Well, perhaps Ash returns physically but is emotionally scarred. Serena would be there to comfort him. They could start by just reminiscing about old times. Then, Ash might introduce Serena to some of his war - time comrades who are also Pokémon trainers. This could lead to a whole new set of storylines involving group adventures, Pokémon battles, and the rebuilding of relationships that were strained during the war.
Firstly, it needs to stay true to the essence of Ash and Serena's characters. Their personalities should be recognizable. Secondly, an engaging plot that involves their journey, like facing new Pokémon or exploring new regions. Also, the fanfiction should be able to convey the emotions of their relationship, whether it's friendship, love or a combination of both. For example, a story where they have to rely on each other in a difficult situation in the middle of their journey really makes for a great 'Ash and Serena journey fanfiction'.
It might be that Serena dresses Ash in a way that reflects her own dreams or desires for him. For example, she could dress him in a more elegant or refined way to make him look like a champion. This could also lead to some interesting interactions among their friends and other Pokemon trainers who notice the new look.
Maybe they enter a Pokémon tournament where the rules are very different from what they're used to. They have to adapt quickly and use their combined knowledge to win. This would test their relationship and their skills as trainers.
Well, 'The Unseen Path' is a really good 'Ash and Serena journey fanfiction'. It delves deep into the challenges they face together and how they overcome them. There's also 'Serena's True Potential' which shows Serena's development in a unique way during their journey with Ash.
In a fanfiction of their first date, it could be that they go on a journey to a special place. Maybe a hidden forest where rare Pokémon live. Ash would lead the way, protecting Serena. Along the way, they'd have to work together to overcome some small obstacles like crossing a small stream or finding a path through thick bushes. Once they reach the heart of the forest, they sit down and have a picnic. Serena might have prepared some special food, and they'd just enjoy each other's company while surrounded by the beauty of nature and Pokémon.
One possible plot could be that they accidentally get drunk while trying some new berry juices that they thought were non - alcoholic. They start sharing their deepest dreams and fears. Ash might talk about his goal to become a Pokémon Master in a more emotional way, and Serena could open up about her insecurities regarding her performance in Pokémon showcases.
One possible plot could be that they accidentally drink something that makes them drunk at a festival in a new region they are visiting. They start acting silly, like Ash trying to show off his Pokémon skills in a very clumsy way and Serena giggling uncontrollably. Then they might share some deep secrets or feelings they've been holding back, leading to a stronger bond between them.
One possible plot could be that Serena's mom discovers Ash's true potential as a Pokemon trainer and decides to help him in his journey. Maybe she has some old Pokemon training techniques that she imparts to Ash, which helps him win a big tournament.