One possible storyline could be that Ash is a knight in training and Serena is a noble lady. Ash has to prove his worth in a jousting tournament to win Serena's hand in marriage. Another could be that they are both on a quest to find a magical Pokemon that is said to have the power to save the medieval kingdom from an evil sorcerer. And a third could be that Serena is a healer and Ash is a warrior, and they team up to fight off a horde of dark - type Pokemon that are attacking the villages.
One possible storyline could be Serena feeling heartbroken and then deciding to focus on her own Pokemon journey independently. She might strive to become a better Pokemon trainer on her own terms, proving herself not just for Ash but for her own self - worth.
Perhaps a group of bandits who steal Pokemon and sell them on the black market. They see Ash and Serena as threats because they are trying to stop their illegal activities. These bandits could be led by a really tough and mean - looking guy who has no mercy when it comes to getting what he wants. They would constantly be trying to sabotage Ash and Serena's attempts to protect the Pokemon and the people in the medieval setting.
One popular storyline could be Ash and Serena starting at a new Pokemon school together. They might face challenges like dealing with a strict teacher who doesn't believe in Ash's unorthodox training methods. Another could be a school competition where they team up against rivals. It could also involve Serena trying to start a Pokemon - related club at school and Ash being her biggest supporter.
A great storyline could be that Serena decides to start a new Pokemon performance group in Alola, and Ash helps her recruit members. They could travel around the Alola region, looking for Pokemon and trainers with special talents in performing. This would not only bring a new aspect to their relationship but also introduce new characters and Pokemon to the story.
A possible storyline could be that Misty and Serena accidentally find out about each other's feelings for Ash. So, they start a friendly competition where they try to do things that would make Ash notice them more. For example, Serena might practice harder for her Pokémon performances, and Misty could train her Pokémon to be even stronger to impress Ash.
One way is through words. Ash might say things like 'Serena, you're one of the strongest people I know. Don't let this get you down.' Just simple, sincere words of affirmation.
One possible scenario could be that Ash and Serena are at a Pokemon festival. The music starts and they begin to dance. Ash, who is usually more focused on Pokemon battles, is a bit clumsy at first but Serena guides him. As they dance, their Pokemon join in the fun, creating a lively and heartwarming scene.
Some fanfics focus on the relationship between Serena and Ash. They might write about how Serena finally confesses her true feelings to Ash in a really emotional and romantic way. There could also be a storyline where they get separated and have to find their way back to each other, facing many challenges along the way which test their bond.
One possible storyline could be that they are in a dangerous situation in a new region. While running away from a powerful Pokemon, Ash reaches out and grabs Serena's hand to ensure she doesn't get left behind. This moment of physical contact could mark a new level of closeness in their relationship, and as they escape, they start to have deeper conversations about their feelings for each other.
One possible storyline could be that Ash and Serena have been traveling together for a long time and their relationship deepens. They might face some initial shock and then start to plan for their future together. They could have to deal with reactions from their friends and family, like Pikachu being both excited and a bit confused.