The Pokemon Let's Go Pikachu storyline varies depending on your playstyle and how much you explore. But on average, it can take around 20 to 30 hours to complete the main story.
Often, in addition to Eevee and Pikachu, their trainers might also be important characters. The trainers' actions and decisions can influence what Eevee and Pikachu do. For instance, if the trainer sends them on a mission, that becomes the basis of the adventure in the fanfiction. Also, sometimes other Pokémon that are friends with Eevee and Pikachu, like Charmander or Squirtle, might make appearances and play secondary roles in the story.
One interesting story could be about Eevee and Pikachu going on an adventure to find a rare Pokémon. They might face various challenges like crossing a big river or getting through a dark forest. Along the way, they meet other Pokémon who help or hinder them.
The length of the Pokemon Let's Go story can vary depending on your playstyle and how much time you spend exploring and doing side quests. But generally, it can take around 20 to 30 hours to complete the main story.
Pokemon Let's Go isn't an entirely new story. It incorporates familiar concepts and characters from the Pokemon franchise while introducing some new gameplay features and storylines that add a fresh twist.
The main characters are Eevee, Pikachu, and Serena. Eevee is the protagonist in terms of the love story, Pikachu is the beloved, and Serena is important because she's Eevee's trainer. She could be the one to give advice to Eevee or create situations where Eevee and Pikachu interact more. For example, she might take them to the same Pokémon training sessions.
One possible plot is that Serena's Eevee is constantly daydreaming about Pikachu. Eevee follows Pikachu around secretly, observing all of Pikachu's actions. There could be a part where other Pokémon try to discourage Eevee because they think Pikachu is too popular and out of Eevee's league. But Eevee doesn't listen and keeps trying to get closer to Pikachu.
In fanfics, Pikachu's Force Lightning can be depicted in various ways. Some might show it as an extremely powerful attack that can even take down much larger and stronger Pokemon. It could be a result of Pikachu reaching a new level of power or being in a special state of rage or determination.
Friendship is a very common theme. Eevee and Vulpix are often depicted as having a strong bond, like in many fanfics where they support each other through difficult times. Another theme is adventure. They go on all sorts of quests together in different regions.