One interesting storyline could be a trainer's journey in the Kanto region as depicted in the fanfic. They might encounter rare Pokemon that are not commonly seen in the original games, like a shiny Pikachu at the very start. This Pikachu could have unique abilities that help the trainer in unexpected ways during battles.
Some fanfics in the Pokemon Red, Blue, Green and Yellow universe might center around a time - travel concept. A trainer could accidentally travel back in time to the early days of Pokemon discovery in the Kanto region. There, they meet the very first Pokemon trainers and learn about the primitive ways of training and capturing Pokemon. This could involve trying to adapt their modern - day training knowledge to the more basic techniques of the past, while also dealing with the potential changes they might accidentally make to the timeline.
One interesting storyline could be about a trainer who discovers a rare and powerful Pokemon that was thought to be extinct in the Red and Yellow universe. This Pokemon could have unique abilities that change the way battles are fought.
One interesting storyline could be about a trainer who catches a rare Pokemon in the Red and Blue regions and has to protect it from an evil team. Another could be a story of two rival trainers from the Red and Blue versions who end up having to team up to save the Pokemon world.
One interesting storyline could be about a trainer who discovers a rare and powerful Pokemon in the wild areas of the Blue and Green regions. This Pokemon has unique abilities that no one has seen before, and the trainer has to learn how to bond with it and use its powers effectively.
One interesting storyline could be about a trainer who discovers a rare giant Pokemon in a hidden, ancient forest. The trainer has to learn how to communicate and bond with this massive creature, facing many challenges along the way.
One interesting storyline could be about a trainer who discovers a rare and powerful Pokemon in the Unova region that has been lost for centuries. This Pokemon could have unique abilities that change the way battles are fought in the fanfic.
One interesting storyline could be about a unique Pokemon species found only in America in the fanfic. It might involve a trainer's journey to discover and befriend this rare Pokemon.
One interesting storyline could be a young Pokemon breeder starting from scratch. They might find a rare and weak Pokemon egg. Through careful nurturing, using the right food, and training methods specific to that Pokemon type, they raise it into a powerful and unique Pokemon. This journey of growth and discovery can be really engaging.
One interesting storyline could be about a new student at Pokemon University who discovers a rare and powerful Pokemon on campus. This Pokemon is different from the ones usually found in the local area, and it leads to an adventure as the student tries to learn more about it while also dealing with schoolwork and making friends.
One interesting storyline could be about a trainer from Kanto (the region of Pokemon Red and Blue) traveling to Alola. They might face challenges in adapting to the new environment and different Pokemon species. For example, they could struggle to understand the unique Z - Moves in Alola while trying to use their traditional Red and Blue battle strategies.