In a fanfiction with a Dark Souls - inspired quirk for Izuku Midoriya, his character development would be a journey of self - discovery. For instance, if his quirk was 'Grim Resolve', which gives him a boost in strength and speed when he's in a near - death situation (similar to the 'hollowing' concept in Dark Souls), he would have to learn when to push himself to that limit. He would start off as a naive and somewhat idealistic character, but as he experiences the harshness of his quirk and the battles he has to fight, he would become more cynical. But at the same time, he would also find a deeper sense of purpose. His interactions with his classmates and mentors would change as they try to understand and help him with his unique quirk, and he would grow into a more complex and mature character as a result.
One idea for Izuku Midoriya's quirk in a Dark Souls - inspired fanfiction could be 'Soul Link'. This quirk would enable him to form a link with other people's souls. He could use this link to either heal them by sharing his own energy (similar to Estus Flasks in Dark Souls), or he could disrupt their soul's energy, causing them to be weakened or even stunned. It could also work as a way for him to sense the presence and intentions of others, as he would be attuned to their souls. This quirk would give him a unique advantage in battles and also in forming relationships with other characters in the fanfiction.
Well, initially, Izuku might be overwhelmed by his new cosmic quirk. But as he trains, he becomes more confident. For example, he could start by accidentally causing small cosmic disruptions and then learn to control them precisely.
His relationship with All Might would also be affected. All Might might be more cautious about Izuku's quirk as it's very powerful and could potentially disrupt the fabric of time. Izuku, on the other hand, could use his quirk to go back and learn more about All Might's past, which could strengthen their bond as he gains a deeper understanding of his mentor. However, it could also create a rift if Izuku discovers something in the past that he doesn't like about All Might's actions.
Izuku could develop in terms of his relationships. His energy manipulation quirk makes him stand out more. Some people may be jealous, while others are in awe. He has to learn to deal with these different reactions. He may form closer bonds with those who support him and his quirk development. At the same time, he tries to understand the ones who are jealous and convert them into friends or at least neutral parties. This process of handling relationships matures his character.
Sometimes, Izuku's snake quirk develops through his emotional growth. As he becomes more confident and self - assured, his quirk becomes stronger. His connection with the snake - like aspects of his quirk deepens, enabling him to access new powers such as the ability to sense vibrations in the ground like a snake does, which helps him in both combat and search - and - rescue situations.
First, focus on her insecurities. Despite having a powerful Titan Quirk, she might still doubt herself like the original Izuku. She could worry about losing control and hurting those she loves. Show her working hard to master her Quirk in private, constantly pushing her limits.
The Gamer Quirk also changes Izuku's relationship with others. He can now offer unique insights based on his quirk. For instance, he might be able to analyze a villain's attack pattern like it was a boss fight in a game. His friends and allies can then use this information to their advantage. This makes him a valuable member of any team. At the same time, it also means that he might be seen as a bit of an oddball because his thinking is so different from the norm. But overall, it helps him form deeper connections with those who understand and appreciate his quirk.
His personality could be split. On one hand, he would still have his core values of heroism and kindness. But on the other hand, the dark quirk could bring out a more ruthless side. He might find himself having internal debates between using his power in a traditional heroic way or succumbing to the darker impulses that the quirk brings. This internal struggle would be a major part of his new personality in the fanfiction.
His closest friends like Ochaco Uraraka and Tenya Iida would most likely side with him. They have always been there for Midoriya and share his values of justice and doing what's right. Also, those heroes who have seen Midoriya's growth and believe in his pure intentions would probably join his side.
Izuku's character could develop in several ways. First, he may gain a new sense of purpose. Nana Shimura's story and her relationship with All Might could inspire Izuku to strive for even greater heights in his hero journey. Second, his relationships with others might change. He could become more of a mentor - like figure to his friends, sharing the wisdom he gained from Nana. Third, he may become more adaptable in his fighting style. If he learns from Nana Shimura's combat techniques, he can incorporate those into his own, making him a more versatile hero. This encounter with Nana Shimura would be a significant turning point in Izuku's character development.