One positive idea could be a fanfic about Ash and Serena's journey to become top - notch Pokémon trainers together. They could face various challenges and support each other along the way, strengthening their friendship and partnership.
A fanfic where Ash and Serena participate in a Pokémon beauty and strength competition. They have to use their skills and the unique abilities of their Pokémon to win, and during this process, they learn more about each other's dreams and aspirations. This would focus on their growth as individuals and as a team.
A story about Ash and Serena exploring a new and mysterious region in the Pokémon world. They encounter rare Pokémon, make new friends, and have to solve the mysteries of the region. Their relationship could evolve as they rely on each other's strengths and overcome difficulties.
One positive theme is their friendship. They could have adventures together where they learn more about each other's dreams and help each other achieve them. For example, Ash could help Serena with her Pokémon performances by giving her advice on how to train her Pokémon better for the shows, and Serena could support Ash during his gym battles.
One idea could be that Serena's 'cheating' might be a misunderstanding. Maybe she was seen with another trainer in a compromising position, but in reality, they were just discussing a very important Pokemon training technique that Ash didn't know about at the time.
A possible plot for a 'child of ash and serena fanfiction' is that the child discovers an ancient prophecy related to their family. This prophecy could involve saving the Pokémon world from a new and powerful threat. As the child tries to understand and fulfill the prophecy, they must learn from the past experiences of Ash and Serena. They might also have to form a team of unique Pokémon that combine the characteristics of the Pokémon their parents were associated with.
One idea could be that their baby has a special Pokemon - like a Pikachu that was born with a unique marking. It could start to show amazing abilities from a young age, and Ash and Serena have to figure out how to help their baby train it.
One positive alternative could be writing a fanfiction about their adventures together, focusing on how they overcome challenges in the Pokémon world. For example, they could team up to save a rare Pokémon from a poacher. This would stay true to the spirit of the Pokémon series.
One plot idea could be that they embark on a journey to find a special place to raise their child. They might face challenges along the way, like dealing with wild Pokémon that are more aggressive due to the new energy they sense. Another could be that they start a Pokémon training school for their unborn child and other kids in the region, teaching them about Pokémon care and battle strategies.
A possible plot is that Ash is completely oblivious to Serena's yandere nature at first. Serena starts leaving little gifts for Ash that are laced with a hidden meaning only she understands, like a charm that she believes will keep him close to her. As the story progresses, Ash begins to notice Serena's strange behavior when she gets extremely jealous over small things, like when he just has a friendly chat with a female Pokemon. This leads to a conflict within their relationship as Ash tries to figure out what's going on with Serena.
One idea could be that they embark on a new adventure in a region neither has visited before. They face unique Pokémon and challenges together, which strengthens their bond. For example, they might come across a rare Pokémon that is said to only appear to those with a strong connection. As they work to catch it, they realize their feelings for each other have deepened.
One idea could be that they reunite after a long time apart. Ash has become a more mature trainer and Serena has achieved her dreams too. They realize their feelings for each other have deepened. One passionate encounter leads to Serena getting pregnant. Then they have to deal with how their families and friends will react, and also how they will balance their future goals with raising a child.
Perhaps the child gets lost in a mysterious forest while trying to follow in their parents' footsteps as a Pokémon trainer. Along the way, they meet various Pokémon that help them find their way back, teaching the child about friendship and the bond between humans and Pokémon. The child could also learn some new skills from these Pokémon encounters.