His character would become more complex. He'd have to grapple with the loss of his humanity, which was a big part of his identity. He might start to question his previous values and beliefs.
If Edward Elric becomes a Homunculus in fanfiction, his character would experience a huge transformation. He was always a determined and headstrong character as a human, but as a Homunculus, he'd face different challenges. He'd have to deal with the fact that he's now an artificial being, created through means he once despised. This could lead to internal conflict as he tries to reconcile his old self with his new Homunculus self. He may also find that his emotions are different, or that he has new desires and instincts that he has to learn to control. His relationships with others, such as his brother and friends, would be put to the test as they react to his new form.
In fanfiction where Edward Elric becomes a Homunculus, his appearance would likely change. He might have the characteristic red eyes of a Homunculus. His physical abilities would be enhanced, but at the cost of his humanity. He'd be more connected to the Homunculus' plans and goals, perhaps being forced to work against his former comrades. However, he could also use his new position to try and undermine the Homunculus from within, but it would be a difficult and dangerous path to take.
In fanfiction, the possibilities are nearly endless. Regarding Edward Elric becoming a homunculus, it could be a very interesting concept. If he were to become one, it would completely change his relationship with other characters. For example, his brother Alphonse might react in a very different way. Also, Edward's own view of himself and his abilities would be transformed. His struggle with his new form, if it were to happen, could be a central theme in the fanfiction. Maybe he would try to find a way to reverse the process, or perhaps he would embrace his new existence as a homunculus. It all depends on the creativity of the fanfiction author.
The story would likely become a tale of redemption. Even as Pride, Edward may still have some lingering humanity. His friends and allies could try to remind him of who he really is. There could be a series of events where he slowly starts to realize the error of his ways as Pride. Maybe he sees the harm he is causing to those he cares about, or he has a moment of self - reflection that makes him question his new identity. This could lead to a great climax where he either fully reverts back to his old self or finds a new way to exist that combines the best of both his old and new identities.
At first, Edward might be a bit resistant to Roy's attempts at adoption. But as time goes on, Roy shows his care and concern for Edward. He helps Edward with his problems, like dealing with the homunculi or his own self - doubt. Edward then starts to rely on Roy more, and their relationship deepens into a strong bond of family - like love.
Tanjiro's character development would take a dark turn. He would start from being a pure - hearted demon slayer to a conflicted being. His internal struggle between his human memories and his new demonic desires would be the main focus. For instance, he might remember his promise to his family but be unable to resist the urge to harm others.
His character would develop in a more complex way. He'd have to grapple with the new power and the responsibility that comes with it. He might become more isolated at first as others fear his power. But then he'd learn to use it for good and become more confident in his abilities.
If Naruto becomes the Kyuubi in fanfiction, his character development would be multi - faceted. Firstly, he'd have to learn self - control like never before. The Kyuubi's power is so strong that it could easily overtake him. He would constantly be in a battle within himself to keep his humanity intact. His view of the ninja world would shift. He might start to see the importance of balance between different forces more clearly. In terms of his relationships, he'd have to re - earn the trust of some, while others would be drawn to his new power. Overall, his journey would be one of self - discovery and mastering this new, powerful identity.
Often, there could be a plotline about how his relationships change. For instance, his friends might be distrustful or scared of him at first. And he has to work hard to prove that he is still the same Edward on the inside. Another plotline might involve him having new and strange powers as a homunculus, and he has to learn to control them. Maybe he uses these powers to fight against other homunculi who are causing trouble in the world of the fanfiction.
His character development could involve his relationships with other military personnel. If he is respected by his comrades, it boosts his confidence. But if he faces discrimination or rivalry, it could make him more determined. For example, if he is looked down upon because of his young age or his alchemical abilities being seen as a threat, he will fight to prove himself worthy while in that military uniform.
Ezra's character would become more self - reliant. Mandalorians are known for their independence. He'd rely less on others and more on his own skills. His confidence would grow as he masters Mandalorian combat techniques.