Incorporate elements of mystery. Maybe there's a secret recipe for a super - special ketchup that Pikachu is trying to find. The journey to discover this recipe can keep the audience engaged. Additionally, use vivid descriptions. When describing how Pikachu reacts to the taste of ketchup, use words that really bring out the experience. For instance, 'Pikachu's eyes lit up as the tangy ketchup hit its taste buds, like a bolt of lightning in its mouth.' This makes the story more immersive and thus more appealing.
One possible plot could be that Pikachu discovers ketchup in the human world and is immediately intrigued by its red color and unique smell. It starts to experiment with it, like using it to draw pictures or trying to communicate with other Pokémon using ketchup symbols.
Perhaps there's a ketchup - themed villain in the story. This villain wants to cover the entire Pokémon world in ketchup for some strange reason. Pikachu, being the brave little Pokémon it is, decides to stop this villain. Along the way, Pikachu discovers that the ketchup has some sort of magical property that can either help or hinder it in its quest. It could be a story of Pikachu using its wits and electric powers to overcome the ketchup - obsessed villain and save the Pokémon world from being drowned in ketchup.
Well, sometimes in Sans x Ketchup fanfiction, the plot might revolve around Sans using ketchup as a form of art. He could be painting pictures with ketchup or creating sculptures out of it. It's a really unique and fun idea. Also, there could be a story where Sans gives ketchup to characters who are feeling down as a way to cheer them up, because he believes ketchup has some sort of mood - lifting power.
To write a good Sans x Ketchup fanfiction, first, you need to understand the character of Sans. Know his quirks, his sense of humor, and how he might interact with ketchup in a unique way. Then, come up with an interesting premise. For example, what if Sans could talk to ketchup? Next, create some conflict. Maybe someone wants to ban ketchup in the story's world and Sans has to fight against it.
Obviously, the main characters are usually Pikachu. But sometimes, there could be other Pokémon that play important supporting roles. For instance, a Pichu could be a sidekick or a younger Pokémon that the Pikachus are protecting.
One interesting plot could be two Pikachus from different regions meeting and learning about each other's unique electric attacks. For example, one Pikachu might know a special move that the other has never seen before. They could then teach each other and become stronger together.
One common theme is friendship. They are both Pokemon, so stories often explore how they form a bond. Another theme could be adventure, like going on a quest together.
Yes, there are many. You can start by checking popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'pikachu x glaceon' and you'll likely find a variety of stories with different themes and styles.