The Ultra Instinct in a fanfiction might also have an impact on the character's growth. It could be a new milestone in their hero journey. Instead of just relying on their existing quirks, they have this new ability to master. This could lead to new relationships and rivalries. Other characters might be in awe or jealous of this new power, which would create more drama and tension within the story.
Todoroki might be another likely character. He has a complex power set and has been through a lot of emotional and physical growth. His struggle to control his two quirks could be a parallel to the control needed for Ultra Instinct. If he can master the balance within himself, it could potentially lead to the awakening of Ultra Instinct in him.
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.
It can expand the lore. For example, if a fanfiction gives a character an overpowered quirk, it might make readers think about how such a quirk could exist in the original My Hero Academia world. It could inspire new ideas about the origin of quirks or how society would adapt to such powerful abilities.
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.
In the fanfiction, 'blood' could also mean the relationships characters are born into. Let's say a character is related to a villain by 'blood'. This could create an internal conflict as they try to navigate their own path. The 'water' here could be the influence of their friends (like the flowing and connecting nature of water). Their friends could be the 'water' that helps them break free from the negative connotations of their 'villainous blood' and strive to be a hero instead.
This type of fanfiction can make the fandom more aware of the importance of mental health. While it is a very dark and heavy topic, it can start conversations about how characters, even in a fictional world like My Hero Academia, can be pushed to the edge. But at the same time, it might make the overall fandom atmosphere more somber and less inviting for some fans who are looking for lighter and more upbeat content.
The other characters at U.A. would likely be very supportive. Ochaco might become like an older sister to Eri, always there to cheer her up. Bakugo could be a tough - love type, teaching her to be strong. The teachers, like Aizawa, would keep an eye on her progress. They would also be a source of protection. The overall atmosphere at U.A. would become more family - like, with Eri as the new addition.
The story's tone becomes much darker. Without Deku, the positive and hopeful energy he brought is gone. The whole mood of the fanfiction turns somber. It's like the light has been snuffed out in the hero world.
The scar can create initial barriers. For example, the hero may be self - conscious about it and avoid getting too close to the heroine. This adds tension to the relationship.