Well, the characters in Genshin Impact might be quite surprised at first. They come from different universes. For example, the art styles are different. Genshin Impact has a more fantastical, open - world kind of style, while Honkai Impact has its own unique and often more action - packed feel. If they were to react to the fanfiction, some might be amused, like Paimon. She would probably find the crossovers in the fanfiction really interesting and keep asking questions about the Honkai Impact characters. And Diluc might be a bit more reserved, but still intrigued to see how the two universes are combined in the fanfiction.
Some characters might be very intrigued. For example, Albedo, with his scientific mind, would likely analyze the concepts in the fanfiction related to Earth. He'd be interested in how Earth is depicted, its cultures, and technologies. He might even try to find similarities with Teyvat in terms of elemental powers or social structures.
Shigaraki would likely be dismissive. He's so focused on his own goals of destroying the hero society that he'd see fanfiction as a useless distraction. However, if there were elements in the Genshin Impact fanfic that could somehow be related to his own plans, like powerful artifacts or magic that could be used for destruction, he might take a second look.
Some characters would be fascinated. For example, Fischl would likely see it as a grand adventure from another realm. She might even incorporate some of the elements from the Honkai Impact fanfiction into her own delusions. Keqing, on the other hand, would probably approach it more analytically. She would try to understand the logic behind the Honkai Impact world and how it differs from Genshin Impact. She might make notes about the different power - leveling systems and how the characters interact in the fanfiction.
One possible plot could be that Tartaglia and Ganyu are forced to work together on a mission in Liyue. Maybe they start off not trusting each other. Tartaglia is from Snezhnaya and Ganyu is a half - qilin who is very loyal to Liyue. But as they face various challenges during the mission, like fighting powerful monsters or solving complex puzzles, they gradually come to respect and understand each other. Their different combat styles, Tartaglia's aggressive and adaptable fighting with his dual - swords and Ganyu's long - range attacks with her bow, could make for some interesting battle scenes in the fanfic.
The students of Class 1 - A would have a range of reactions. Ochaco might find the romantic elements in the fanfiction really sweet, especially if there are any cute ship moments. Iida would likely be concerned about whether the fanfiction adheres to some sort of moral code. He might be nitpicky about things like fairness and justice within the fictional story.
To write Tartaglia well, emphasize his adaptability in combat. He can switch between different fighting styles easily. In the fanfic, this could come into play when he and Ganyu are in a fight together. He might adjust his tactics based on Ganyu's long - range attacks to complement them. Ganyu should be depicted as having a deep connection to nature, given her half - qilin heritage. This could be shown through her interactions with the environment in the story. For instance, she might be more attuned to the changes in the weather or the behavior of animals, which could both intrigue and puzzle Tartaglia.