One possible plotline could be that the villains see potential in baby Izuku's quirkless state. They might think they can mold him into a powerful weapon against heroes. They could raise him with a warped sense of justice, teaching him that the heroes are the real villains. For example, they might show him instances where heroes failed to save people or were corrupt, gradually turning his view of the hero society upside down.
Perhaps the villains adopt Izuku because they feel a sense of kinship. They themselves were outcasts from society due to their villainous nature. They see Izuku, who is an outcast in the quirk - filled world for being quirkless, and decide to take him in. As he grows up, he starts to question the motives of both the villains who raised him and the heroes he's been taught to oppose.
Well, a plot could be that Snape adopts Harry due to some unforeseen circumstances. For example, Dumbledore in his infinite wisdom decides that Snape is the best person to protect Harry. Snape initially hates the idea but as he spends time with Harry, he starts to see Lily in him, not just in appearance but in his kind heart. This makes Snape more protective. Harry, for his part, is initially scared of Snape but soon realizes that Snape is actually trying to help him grow into a powerful wizard. They start to have a mutual understanding, and Snape helps Harry with his studies and also with dealing with the trauma of his past.
One possible plotline could be that Naruto is adopted by an Uchiha family early on. This changes his entire upbringing. He might be trained in the ways of the Uchiha from a young age, learning their unique fire - style jutsu and the secrets of the Sharingan much earlier. It could also lead to him having a different relationship with Sasuke, as they would be family in a sense. Maybe Naruto would be more in tune with the Uchiha's history and the tragedy that befell them, and this could fuel his determination to protect the village in a new way.
One possible plotline could be that Cloud, with its unique culture and way of life, would introduce Naruto to a whole new set of values. Naruto might struggle at first to adapt to the more reserved nature of the Cloud ninja. For example, he could have trouble fitting in with their strict training regimens that are different from what he's used to in Konoha. Another aspect could be his relationship with the other ninjas in Cloud. He might form an unexpected bond with a fellow outcast ninja, and together they could work towards changing some of the old - fashioned views in Cloud.
One possible plotline could be Naruto growing up with a different set of values and training methods. Instead of the rough start he had in the original story, he'd be mentored by the Sarutobi clan's elders. He might learn more about the history and secrets of Konoha at an earlier age, which could lead to him being more politically aware and better equipped to handle future threats. For example, he could be trained in unique Sarutobi jutsu from a young age, giving him an edge in combat.
One possible plotline could be Naruto growing up with his uncle and learning different jutsu from him. His uncle might have a unique style of teaching that helps Naruto develop his skills faster. Maybe his uncle also has some secrets about Naruto's family that he gradually reveals as Naruto gets older.
One possible plotline could be Naruto growing up in a more nurturing environment. He might learn different jutsu from Kurenai and Anko. For example, he could pick up some of Kurenai's genjutsu skills, which would add a new dimension to his fighting abilities. Anko could also teach him some of her more unorthodox and aggressive fighting styles. Another aspect could be how Naruto's personality is influenced by these two strong female characters. He might become more in - touch with his emotions and develop better relationships with others in the village.
Well, one plotline could be that Sakura, feeling a bit lost in her ninja journey, is adopted by Kakashi. He takes her under his wing and helps her discover her true self. This could involve Kakashi teaching her about the importance of self - belief and how to use her chakra more effectively. Another plot might be that they get involved in secret missions together. As they work side by side, Sakura learns more about Kakashi's past and his own ninja struggles. And this new family bond could also create some jealousy or confusion among their comrades in the village.
Perhaps the villain adopts Izuku out of a sense of pity at first. But then, realizing Izuku's quirk could be useful, he starts to use Izuku for his own gain. The story could involve Izuku being sent on dangerous missions by the villain. Izuku, being young and naive, initially obeys. But as he witnesses the harm his actions cause, he begins to resist. This could lead to a conflict between Izuku and the villain, with Izuku trying to find his true identity and purpose outside of the villain's control.
His character would likely develop a more cynical view of the world. Growing up with villains, he would be exposed to their anti - hero ideology from a young age. He might not believe in the selfless heroism that is promoted in the normal hero society. Instead, he could think that everyone has ulterior motives, whether they are heroes or villains.
Well, perhaps it could be part of a transformation arc in the fanfiction. Izuku starts growing the fox tail gradually, and it's related to an ancient power or a prophecy. As the tail grows, he attracts the attention of certain characters who either want to help him or use him for their own gain. He might have to go on a journey to find out the origin of this new feature.