What are some interesting plot ideas for a Pokemon Let's Go Pikachu fanfic?

Bulbasaur would be a great addition. It can add an interesting dynamic as it has a different type (grass/poison) compared to Pikachu (electric). Their interactions could be both cute and strategic, like when facing different types of opponents in battles.

A plot could revolve around Pikachu getting sick and Lillie using her knowledge of Pokémon care to nurse it back to health. During this time, they develop a deep friendship. Then, they notice some strange behavior in other Pokémon around them. Together, they start to investigate and find out that there is a pollution source affecting the Pokémon. Lillie and Pikachu then try to find a way to clean up the pollution and restore the health of the Pokémon in the area. This would show their caring and adventurous sides.

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.

One idea could be that the female Pikachu has unique electric powers that no other Pikachu has. She could go on a journey to discover the origin of these powers, facing various challenges along the way, like battles with powerful Pokemon and difficult terrains.

A great idea for a Pokemon Detective Pikachu fanfic could be to set it in a different region. For example, a region that is mostly covered in ice. Pikachu and Tim would have to adapt to the new environment and the different types of Pokemon there. They could be investigating a series of disappearances of ice - type Pokemon. Maybe there's a secret underground lair where a powerful but misunderstood Pokemon is hiding and Pikachu has to use his detective skills to uncover the truth and save the day.

One idea could be that Pikachu suddenly loses its electric powers and Ash has to find a way to help it regain them. This could involve a journey to a mysterious place that is said to have the power to restore Pokemon abilities.

A more complex plot could involve Detective Pikachu trying to figure out a conspiracy among a group of humans who are trying to use Pokemon for illegal and unethical experiments. This would involve Pikachu teaming up with other Pokemon and human allies, like Tim, to expose the bad guys. They would have to face many obstacles and dangerous Pokemon controlled by the villains along the way.

Here's a plot idea. There's a new Pokemon trainer in town who only wants to catch Pikachu and Mimikyu. They keep running away from the trainer and end up in an old, abandoned Pokemon sanctuary. There, they find out about the history of the place and some secrets about their own species. They also meet some old and wise Pokemon who teach them new moves. Eventually, they outwit the trainer and decide to stay friends and protect the sanctuary from any harm in the future.

Well, it depends on the specific fanfic. Some might have a plot where Evil Pikachu teams up with other dark - type Pokémon to take over a region. It could involve battles against the traditional Pokémon heroes.

One interesting plot could be a trainer starting with a Pikachu that has a unique ability not found in the regular games. For example, it can communicate telepathically with other Pokemon. This allows the trainer to understand Pokemon in a whole new way and helps them in battles and in making friends with different Pokemon species.