Well, Frisk could be cautious at first. Since Chara in Underswap is different, Frisk might be on guard. However, as they get to know each other, they could become friends. For example, they might share stories about their friends in their respective worlds. Frisk could talk about Sans and Papyrus, while Underswap Chara could talk about their own versions of the characters. Eventually, they could team up to face some challenges in the Underswap world.
Another scenario could be that there's immediate conflict. Sans might suspect that this different - looking Chara has some malicious intent towards his world or his friends. So he could start a fight right away. But as the encounter progresses, they might start to understand each other better and the fight could turn into a more of a philosophical debate about the nature of their respective worlds and the actions they've taken in the past.
Underswap Chara could develop a sense of respect for Sans. Sans is known for his power and intelligence in the Undertale world. Through their interactions, Chara might see that there are different ways of handling situations than what they're used to in their own world. They could learn from Sans' more laid - back approach and start to adopt some of his non -chalant attitude towards things. This could lead to a more mellow version of Chara in the fanfiction.
Well, one possibility is that there would be a lot of confusion. Frisk, being the kind-hearted protagonist, might try to reason with Error. Chara, on the other hand, could be more unpredictable. Error might see them as glitches in the fabric of his world - or whatever strange view he has. Maybe he'd try to destroy them at first, but Frisk's determination could change his mind.
The relationship could start with suspicion. Frisk, coming from their own world, might not trust this new Chara right away. But as they spend time together, they could find common ground. For instance, if they both have a love for the unique monsters in their worlds. This could gradually lead to a friendship where they rely on each other.
Some fanfictions focus on the relationship between Frisk and Chara in a more emotional way. For example, Chara might be haunted by their past actions, and Frisk tries to help them come to terms with it. It shows how their bond can be both complex and heart - warming, as they support each other through difficult times.
It's a fan - made concept where the worlds or characters of Underswap and Undertale interact. It often features unique storylines that combine the different character traits and settings from both.
Another way is to ask in undertale - related forums or communities. There are many fans who are into reading and writing fanfiction, and they can recommend some great stories. They might even have their own collections or bookmarks of good frisk and chara fanfictions that they can share with you.
Frisk and Chara have a complex relationship already in Undertale. When Error enters the picture, it gets even more interesting. Frisk might be the mediator between Chara and Error. Chara could be hostile towards Error initially, seeing him as a threat to their own existence or plans. Error would likely be dismissive of both of them at first, thinking they are just insignificant parts of a world he might want to destroy.
Well, it could be really interesting. Maybe it shows a unique interaction between Chara from Storyshift and Sans from Undertale. Their personalities are quite different. Chara can be rather complex and Sans is known for his laid - back yet perceptive nature. So in the fanfiction, there might be a lot of unexpected exchanges and development of their relationship.