A third plot device could be the Kyuubi's possessiveness causing misunderstandings. In fanfiction, sometimes other characters misinterpret the Kyuubi's possessive actions as Naruto being controlled by an evil force. This leads to situations where Naruto has to prove that he is still in control and that the Kyuubi's possessiveness is not a sign of malevolence. This adds drama and tension to the story as Naruto has to deal with both the external reactions and the internal relationship with the Kyuubi.
One common theme is power struggle. Naruto constantly battles with the Kyuubi's influence over his own power. Another theme is acceptance. Naruto has to come to terms with the fact that he has the Kyuubi inside him. And there's also the theme of isolation. Because of the Kyuubi, Naruto is sometimes ostracized by the villagers. In fanfiction, these themes are often explored more deeply and in different ways than in the original series.
One sign could be that Kyuubi gets jealous when other characters get too close to Naruto. Maybe it tries to interfere or make its presence known in a way that scares off the other characters. Another sign is that it might be overly protective of Naruto in dangerous situations, more so than just a normal sense of helping. It could also be possessive in the way it shares its power with Naruto, as if it's something only Naruto is entitled to among all the characters in the fanfic.
A plot device often used is the threat of separation. Maybe there's a situation where Draco has to go away for some reason, like a mission or a family obligation. Harry's possessiveness kicks in as he doesn't want Draco to leave. This situation can be used to really dig deep into Harry's feelings and show how far his possessiveness can go. He might try to find ways to keep Draco with him, even if it means going against rules or other people's wishes.
The glowing eyes could also be used as a way to attract the attention of a mysterious character. Maybe there's a powerful and reclusive ninja who is intrigued by Naruto's glowing eyes. This character then becomes either a mentor or an antagonist to Naruto, depending on their motives. It adds an element of mystery and new relationships to the fanfiction.
In Naruto salamander contract fanfiction, a typical plot device is the rivalry. Maybe there's another ninja who also wants the salamander contract and there's a competition between them. Also, the salamander contract might be used as a way to unlock a greater mystery in the Naruto world. For example, it could be linked to an ancient prophecy that the main character has to fulfill with the help of the salamander powers.
She might be overly protective of Naruto in fanfiction. For example, she could prevent other characters from getting too close to him or interfere when she thinks Naruto is in a potentially harmful situation.
One common plot point is the revelation of their relationship. Often, it's a big shock to Naruto and those around him. Another is how they interact with each other on a more personal level, like a sister - brother bond. And sometimes, they might team up against common enemies in a way that's different from the original Naruto storyline.
One common plot device is the use of Naruto's friends to help him. For example, Shikamaru might come up with a brilliant plan to deceive those arranging the marriage. Another is Naruto's own unique ninja abilities. He could use his shadow clone jutsu to create distractions. Also, there might be a secret enemy behind the arranged marriage that Naruto discovers during his attempts to escape, which adds an element of mystery.
Training with a powerful mentor is a common plot device. For example, in many fanfictions, Naruto might train with an ancient sage or a long - lost relative who has powerful techniques to pass on. Another is the discovery of a hidden power or ability. This could be something like a new form of chakra or a long - forgotten jutsu.
Another plot device is the mystery surrounding the origin of the demon arm. In many fanfictions, the arm's origin is not clear at first. It could be related to an ancient curse, a long - forgotten experiment, or a connection to a powerful and malevolent being from Naruto's world's past. Writers use this mystery to keep readers hooked as Naruto tries to uncover the truth about his arm.