Roy Mustang would be both amused and concerned. He'd see the potential for chaos but also understand the importance of protecting Edward. He might use his influence to gather resources to find a way to reverse the transformation, all while making the occasional sarcastic comment about Edward's new state.
Winry would be a mix of shocked and maternal. She'd scold baby Edward when he did something naughty like trying to chew on her tools, but also be very affectionate, making sure he was clean and well - fed. She might also be the one to make cute little outfits for him.
Alphonse would be very protective. He'd probably be constantly worried about his baby brother's safety. He might be a bit clumsy at first with taking care of a baby, but his determination would make him learn quickly.
One possible plot could be that his friends have to take care of him while trying to find a way to reverse the transformation. They might struggle with things like feeding him, changing his diapers, all while protecting him from enemies who could take advantage of his vulnerable state.
The guild master, Makarov, would be very protective. He'd see it as his duty to keep baby Erza safe. He might assign different members of the guild specific tasks like getting baby supplies or researching spells. Juvia would be over - the - top in her care for baby Erza. She'd constantly be fussing over her, making sure she's warm, clean and happy.
Winry would be heartbroken. She loves Edward deeply. She might initially go into denial and then be filled with anger at the circumstances that led to his death. She could also turn her grief into a determination to help others with her mechanical skills, in memory of Edward.
Well, in the fanfiction, if we consider the people around Harry, the teachers at Hogwarts could be concerned at first. Dumbledore, being the wise figure, might see potential in the baby and encourage Harry. As for Edward's friends in the vampire coven, they would have mixed feelings. Rosalie might be jealous as she always wanted a normal life with a baby. Jasper might be worried about the baby's influence on their coven's stability. But overall, as time passes, they would adapt and form a new kind of community around the baby.
Harry would be extremely protective. He'd probably be the first to jump in and try to shield Hermione from any harm or unwanted attention. Ron, on the other hand, would be a bit more flustered at first but would quickly get his act together and use his loyalty to support Hermione.
Alphonse Elric is often present. He might play a role in helping Edward understand and use his new gamer - like abilities in relation to alchemy. For example, he could be the one who discovers a new aspect of Edward's powers.
Another theme could be innocence. Baby Edward is in a pure state, and fanfictions might explore how this innocence is gradually lost as he grows up and faces the hardships of the alchemical world. For example, a story could show how his first encounter with the darker side of alchemy starts to chip away at his innocent view of the world. It could be something as simple as seeing an alchemical experiment go wrong and realizing that there are consequences to the power he's so interested in.
Maybe the reason he was turned into a kid is related to a long - forgotten alchemy experiment. And as he's a kid, he unknowingly starts to repeat the steps that led to his transformation in the first place, which could lead to some really unexpected consequences. This would make the plot more complex and engaging.
Well, when it comes to interacting with the Hogwarts professors, Edward Elric would likely approach them with his usual inquisitive nature. With Professor McGonagall, he'd be impressed by her transformation magic and might ask her if there's any connection to alchemy's transmutation. He could have some interesting debates with Professor Flitwick about the nature of magic and how it differs from alchemy. And with Hagrid, Edward might be a bit cautious at first, but then warm up to him when he realizes Hagrid's kind heart.
Scott would probably be very protective. He'd feel responsible for taking care of Stiles and making sure he doesn't get into too much trouble. Lydia might be initially shocked but then use her intelligence to try and figure out how to reverse the situation. And Derek, well, he'd probably be a bit annoyed at first but would also end up being one of Stiles' protectors.