The relationship between Five and the others would be really interesting. Five, who is usually the most independent and aloof as an adult, would be forced to rely on his siblings as a child. He might be more vulnerable and in need of their protection. The other siblings would have to take care of him, which could change their perception of Five. They might see a side of him that was hidden before. And for Five, he might develop a newfound respect and closeness to his siblings as he experiences their care and love in this new, deaged state.
One interesting plot could be the deaged Hargreaves having to adapt to a world that has changed a great deal since they were last young. They might struggle with modern technology and social norms. For example, Five, who is used to his more mature self's time - traveling abilities, now has to figure out how to deal with a smartphone as a child. Another plot could involve the family dynamics changing completely. The older siblings now have to take on more of a parental role, which could lead to both comical and heartwarming moments as they try to raise their deaged siblings.
The relationship between Harry and Snape would change drastically. Normally, they had a very strained relationship in the original story. But with Snape deaged, Harry would see him more as a vulnerable being in need of help. He might feel a sense of protectiveness towards Snape, which is a complete turnaround from his previous feelings. As for Ginny, she would probably approach Snape with an open mind. Her relationship with Snape would be more of a nurturing one, like taking care of a lost child. And between Harry and Ginny, their relationship could be strengthened as they share this unique experience of looking after Snape.
Some characters would be shocked. Allison, for instance, might be taken aback by how some fanfictions explore her power in different ways. She could be both fascinated and a little bit worried about how fans perceive her use of the 'I heard a rumor' ability.
His relationship with Sasuke would be affected. Sasuke might start to look down on Naruto more. On the other hand, Sakura might be more sympathetic towards Naruto as she has a kind heart. And his relationship with Iruka would become more strained as Iruka would be disappointed that Naruto couldn't graduate.
Allison would use her power to create a positive environment for the baby. She could say things like 'I heard the baby is always happy' and use her power to make it so. The characters would also have to learn to work together to take care of the baby. There would be arguments about the best way to raise the baby, like whether it should be trained to use its powers early or just be allowed to grow up like a normal child. But in the end, they would all come together to protect and love the baby because they understand the importance of family, which is a big theme in the Umbrella Academy.
The characters would likely experience a range of emotions. They may feel flattered if the fanfiction is well - written and shows them in a positive light. However, they could also be offended if it goes against their values or personalities. It could also potentially influence their self - perception. If they read a lot of fanfiction where they are seen as heroes, they might start to believe more in their own heroic capabilities, or if they are depicted as villains, it could make them more self - conscious.
Well, it could be really interesting. Some characters might be amused to see how fans interpret their actions and relationships. For example, Klaus might find it hilarious to see the wild adventures fans write for him. He'd probably enjoy the creativity and might even get some new ideas for his own chaos.
His relationships with his human friends might become a bit strained at first. He would be spending a lot of time at the academy, away from them. But with his new Shinigami friends, he would develop strong bonds. They would understand his new life and challenges better. For example, he might have a mentor - like relationship with an older student or a friendly rivalry with someone of equal strength.
Well, some characters might become closer. If they find that a fanfiction portrays their relationship in a positive and deeper way than the original, they could develop a stronger bond. For instance, two characters who were just friends in the original might see a potential for more in the fanfiction and start to explore that in their own relationship.
There could be some conflict. If one character likes a particular fanfiction and another character hates it, it might lead to an argument. Maybe a Decepticon likes a fanfiction that portrays the Decepticons as the good guys, but an Autobot disagrees strongly, and this could cause tension between them.