One possible plotline could be that they got married to form an alliance between two powerful factions secretly. Another could be that they fell in love while on a secret mission together that no one else knew about. Maybe Itachi was on a mission to protect Naruto from afar and they developed feelings over time.
Well, perhaps they got married as part of a plan to stop a greater evil. Itachi, with his knowledge of the Akatsuki's plans, and Naruto, with his power to bring people together, could have decided that a secret marriage was the only way to unite the ninja world against a common threat. Or it could start with Itachi saving Naruto's life in a very personal way that made Naruto see him in a new light and led to a secret relationship and marriage.
A possible plotline could be that they were both part of a prophecy that required them to be united in marriage for the balance of the ninja world. In secret, they started to understand each other on a deeper level. Itachi could teach Naruto about the Uchiha clan's secrets and Naruto could share his dreams of peace with Itachi. Their marriage could be a symbol of hope and unity that they keep hidden until the right moment to reveal it to the world.
Definitely. Fanfiction allows for a great deal of creative freedom. Since Naruto and Itachi are both well - developed characters with their own backstories and personalities, a fanfic writer could find a way to write a believable story where they are secretly married. It could involve alternate universes, time - travel, or some other fictional device to make the relationship work within the context of the story.
One possible plotline could be the discovery of her secret marriage. Maybe a nosy villager starts to suspect something and begins to dig deeper. This could lead to a series of events where Fem Naruto has to work hard to cover her tracks and protect her relationship.
One possible plotline could be that they discover they have more in common than they thought. Maybe they start working together on a project in the wizarding world, like researching a long - forgotten magic. As they spend time together, they realize their feelings for each other have changed from hatred to love. To avoid the chaos that would ensue from their families and friends' reactions, they decide to marry secretly. Another idea is that they are forced into a situation where they have to pretend to be married for some magical reason, like protecting a powerful spell or object. During this time, they start to really fall for each other and end up making it a real, secret marriage.
One plotline could be that they got married secretly to protect each other. Maybe Snape has some dangerous enemies and Hermione wants to help him, so they tie the knot in secret. Another could be that they fell in love while working on a very complex magical project together and decided to marry without anyone knowing because they feared the reaction of others.
It could also be that Naruto has been influenced by Itachi's self - sacrifice. He saw how Itachi sacrificed everything for the greater good. So, in the fanfiction, Naruto might secretly work for Itachi as a way of carrying on his legacy. He may be helping Itachi from the shadows to achieve goals that Itachi was unable to complete during his lifetime.
One possible plotline could be that Naruto discovers a hidden vampire world while on a mission. Maybe he stumbles upon a vampire lair and has to figure out how to deal with these new, powerful creatures. He could be intrigued by their powers and try to learn from them while also keeping his own ninja village safe from any vampire threats.
One possible plotline could be that Naruto has been hiding his blindness all along to protect his friends. He might have developed special techniques to compensate for his lack of sight, like relying more on his other senses such as smell and hearing. For example, he could use his sense of smell to detect enemies' movements and positions, similar to how he uses it to find Sasuke in the original series. Another idea is that his blindness is a result of some hidden power or curse, and as the story unfolds, he has to find a way to either overcome it or use it to his advantage.
One possible plotline could be that Natsu has been secretly married to a character from his past. Maybe it was a rushed decision during a dangerous adventure, and they kept it a secret to protect each other. As the story unfolds, his friends start to suspect something is different about him. He becomes more cautious and less reckless, which is out of character for him.
One possible plot could be that they meet in secret locations like an abandoned training ground. They start sharing their deepest secrets and feelings. As they date secretly, they have to be careful not to be seen by Sasuke, who has his own complex relationship with Itachi. Their relationship could also be a way for Itachi to redeem himself in a different way, by being with Naruto who represents hope in the Naruto world.
One plotline could be that they secretly married to protect Ginny from a dark wizard who has a vendetta against Harry. By being secretly married, they think they can keep Ginny out of harm's way. Another could be that they did it on a whim during a romantic getaway and then decide to keep it a secret just for a while to enjoy their private time together.