In the fanfic, Fresh might learn to respect boundaries more. His wild nature sometimes means he oversteps. But with Paper Jam, who has clear boundaries, he'll have to adjust. This will make him a more well - rounded character. For Paper Jam, he could develop a sense of humor. He's quite serious, but Fresh's antics can start to crack his serious exterior and he'll start to see the fun in things, which will completely change his personality for the better.
Well, perhaps in the fanfic, Fresh could be on one of his random travels through different AUs (Alternate Universes) and end up in Paper Jam's AU. Paper Jam, being a bit of an enigma in his own right, is initially suspicious of Fresh. But then they get caught up in a mystery that only they can solve together. It could involve some sort of strange disappearance of important items in Paper Jam's world, and their combined skills and personalities are what's needed to figure it out.
Use body language and expressions to enhance their interactions. Since they are in a digital world, their 'bodies' can do some unique things. Fresh might have his shades doing something cool when he's excited in a conversation with Paper Jam. And Paper Jam's paper - like form could show signs of confusion or interest, like the pages of his body ruffling. This visual aspect can make their interactions more vivid and engaging for the readers.
One common theme is friendship. Despite their differences, Fresh and Paper Jam often form a unique bond in these fanfictions. Another theme is adventure, as they usually embark on some sort of journey through the Undertale world.
One plot idea could be that Fresh and Paper Jam team up to solve a mystery in their strange digital - world. Maybe there's a virus spreading that's causing glitches and they have to use their unique abilities to stop it.
Joey could start as a timid trainer and become more confident as he bonds with Rattata. Rattata, on the other hand, might start off as a wild and skittish Pokémon but become more loyal to Joey over time.
Karai could start off as a cold and calculating character, but as she spends time with April, she might become more empathetic. For example, seeing April's kindness towards others could make Karai question her own actions.
Alucard could start to see Anderson not just as an enemy but as a worthy adversary with a sense of honor. This might make him less bloodthirsty towards Anderson specifically. For Anderson, he might come to understand that Alucard is not just a mindless monster but has his own reasons and a complex past.
Pikachu might become more empathetic. Usually, Pikachu is known for his energy and courage. But in a fanfic with Buneary, he could learn to understand Buneary's more delicate feelings. For instance, if Buneary is sad because she misses her family, Pikachu could learn to comfort her in his own way, which would make him more in - touch with emotions.
For Hanamiya, he could start as a very antagonistic character, but as he spends more time with Kuroko, he might become more empathetic. For example, he could learn to understand the importance of teamwork in a more positive sense, rather than just using his teammates as tools to win.
There's a fanfiction called 'Fresh and Paper Jam's Adventure'. In this one, they go on a journey through different areas of the Undertale world that are usually not explored much. It has a lot of fun dialogues between the two characters and some cool action scenes as well. The author does a great job of capturing their personalities.