One popular storyline is Pikachu and Pichu going on an adventure to find a rare berry. They face various obstacles like wild Pokemon and tricky terrains. Another is them helping a lost Pokemon find its way home. It shows their kind and helpful nature.
Well, a lot of fanfics focus on Pikachu and Pichu's relationship with their trainer. For example, in some stories, they have to prove their worth to the trainer who is considering evolving Pichu. They go through a series of challenges to show that Pichu is special as it is. This kind of storyline often explores the bond between Pokemon and trainer.
There are many great storylines. For example, a fanfic could be set in a post - apocalyptic Pokemon world where Snivy and Pikachu are among the few remaining Pokemon. They have to find a way to revive the world and bring back the other Pokemon species. Another idea is that they are accidentally transported to a different dimension where the rules of the Pokemon world are different. They need to adapt quickly and find a way back home. Some fanfics also explore their relationship in a more emotional way, like Snivy being jealous of Pikachu's popularity at first but then realizing Pikachu's true worth as a friend through a series of adventures.
One popular storyline could be about Togedemaru and Pikachu teaming up to save their Pokemon friends from a natural disaster in the forest. They use their unique electric abilities in creative ways to rescue everyone.
Some fanfics might enhance Pikachu's electric attacks to be more powerful than in the official games. For example, Pikachu could be able to create huge electric storms. As for Pichu, it could be depicted as having a hidden ability to communicate with other baby Pokemon, which is not shown in the regular Pokemon world.
One common storyline could be a trainer traveling through the Pokemon world and gradually gathering a diverse group of Pokemon companions that form a sort of 'harem' around them. For example, Pikachu might be especially protective and act as a sort of leader among the Pokemon friends. Another could be where a new Pokemon species is discovered and they all seem to be drawn to a particular trainer, creating a unique harem dynamic.
Maybe in a fanfiction, Buneary and Pikachu get lost in a mysterious forest together. They have to rely on each other's skills. Pikachu uses his electric attacks to fend off threats, while Buneary uses her ears to sense danger and find a way out of the forest. It's a story of friendship and survival.
A more complex storyline could involve Snivy and Pikachu getting lost in an unknown region. They have to rely on each other to survive. Pikachu uses its electric powers to start fires for warmth and Snivy uses its vines to gather food. Along the way, they meet new Pokémon species and form alliances to find their way back home. This journey not only tests their survival skills but also their friendship.
In a more complex story, there could be a curse placed on Pikachu by an ancient Pokemon spirit. This curse gradually weakens Pikachu over time. As it gets sicker, Ash tries everything he can to find a cure. But in the end, Pikachu's body gives out. Ash is left to deal with the grief, and he embarks on a journey to find a way to break the curse and bring Pikachu back.
One possible storyline could be Sylveon and Pikachu teaming up to rescue a group of baby Pokemon from a powerful and evil trainer. Sylveon could use its ribbons to distract the trainer while Pikachu zaps the cages open.
One interesting storyline could be Pikachu and Snivy teaming up to rescue a group of lost Pokémon in a mysterious forest. Pikachu's electric powers and Snivy's grass - type abilities would be useful in different situations during the rescue mission.
One popular Pokemon Mewtwo x Pikachu fanfic could be 'The Unlikely Bond'. It explores how these two very different Pokemon, the powerful and genetically created Mewtwo and the cute and energetic Pikachu, come to form an unexpected friendship. Their interactions might involve Pikachu's naivete and Mewtwo's brooding nature clashing at first, but then gradually finding common ground as they face a common threat in the fic.