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.
Papyrus might be initially shocked. He's used to Sans being more laid - back, so seeing him in a fight could be quite a surprise. His eyes would widen and he might gasp.
Chara is often a popular character. Their complex nature makes them interesting to explore in the context of Storyshift. They can be portrayed in different ways, sometimes more sympathetic than in the original Undertale.
One interesting plot twist could be the role reversal of characters. For example, if a typically heroic character becomes more of an anti - hero or vice versa. It completely changes the dynamics of the story.
One interesting plotline could be a journey of self - discovery for both Chara and Frisk. They might face challenges in the Underground together and through that, their relationship deepens. Another could be a story where they have to overcome misunderstandings. For example, Chara's past actions might be misinterpreted by Frisk at first, but they eventually work it out.
Another plotline could be that there is a rift in the multiverse, and Chara and Sans are brought together to fix it. Along the way, they discover things about each other's universes and themselves, and in the end, they manage to close the rift and return to their respective worlds with a new understanding of the multiverse.
Well, the relationship could start with Papyrus's passion for spaghetti. He could talk to the spaghetti as if it were a friend, sharing his day and dreams. Maybe he gives the spaghetti names based on how it looks, like 'Curly' or 'Longy'.
A papyrus bedtime story could be about a little girl in an ancient Egyptian village. She found a papyrus with strange markings. As she was about to go to bed, she started to decipher the markings. The papyrus revealed a story of a great hero who fought a monstrous serpent. The hero used a magical amulet to defeat the serpent. The girl was so engrossed in the story that she felt like she was there with the hero. She imagined the hero's bravery and how the village celebrated his victory. When she finished the story, she fell asleep with a smile on her face, dreaming of ancient Egyptian heroes.
Magical creatures can also be main characters in a papyrus bedtime story. For example, a sphinx with the body of a lion and the head of a human or a phoenix that rises from the ashes. These creatures can bring mystery and excitement to the story, making it a great bedtime tale.