One great Ash and Serena fanfic is 'A Journey Together'. It beautifully captures their relationship growth as they travel through the Pokémon world. The author does an amazing job of showing Serena's determination to support Ash in his Pokémon battles and how Ash starts to see Serena in a different light.
The relationship between Ash and Serena is a big part. Fans love seeing Ash in the role of a hero saving Serena. It adds a new dynamic to their relationship.
You can try looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Ash Saves Serena' in their search bars and you might find some great stories.
In this fanfiction, Ash could first assess the situation carefully. He might notice that Team Rocket has set up some sort of elaborate scheme to capture Serena. So, he starts by sending out his Pokémon like Bulbasaur to use Vine Whip to disarm any mechanical devices Team Rocket has. Then, he could bravely run towards Serena while his Pokémon keep Team Rocket at bay. He might also encourage Serena to be brave and follow his lead as they make their escape. Once they are out of immediate danger, he could make sure Serena is okay and comfort her after the scary encounter with Team Rocket.
Typically, Ash and Serena fanfic often focuses on their relationship. It could be about their budding romance, like how they slowly realize their feelings for each other. For example, in many fanfics, Serena's shyness around Ash and Ash's obliviousness to Serena's feelings are played up.
I really like the fanfic 'Ash, Serena and Brock: A New Quest'. In this story, they set out to find a rare Pokémon. The author does an amazing job of showing their individual strengths. Serena's grace, Ash's determination and Brock's knowledge all come into play. There are also some really cool battle scenes that keep you on the edge of your seat.
Love is a very common theme. Since they have a special connection in the Pokémon series, many fanfics explore their romantic relationship. For example, how they might fall in love and deal with the challenges that come with it.
A good Ash and Serena fanfic often focuses on their relationship. It should show their unique personalities. For example, Ash's passion for Pokémon battles and Serena's elegance and grace. It should also have a well - thought - out plot, like them going on an adventure together or facing challenges as a team.
Maybe Ash's character in the original work has a certain fixed image, and some fanfics about Serena deviate from this image he represents, so he hates it.