One idea could be that Naruto gets lost in Iwagakure's territory during a mission. Kurotsuchi finds him. At first, she's suspicious of him, but Naruto's friendly nature wins her over. As they try to find a way for Naruto to get back to Konoha, they have to rely on each other. This mutual dependence could lead to the start of their love story.
It's hard to say exactly. Maybe there was a hidden plot twist or a secret they discovered that made them run. Maybe they were trying to avoid being caught by some villains. Without more details from the visual novel, it's tough to be certain.
There could be an interesting fanfic where Naruto and Kurotsuchi meet during some inter - village missions. Maybe Naruto's positive energy starts to draw Kurotsuchi in. She, who is used to the rough and tough ways of Iwagakure, finds Naruto's determination and kindness different. Their love could develop slowly as they get to know each other better through various adventures and challenges.
One possible fanfiction could be about Kurotsuchi learning Naruto's Fuuinjutsu techniques. Maybe she's intrigued by the power and secrecy behind it. She could approach Naruto to ask for some lessons, and through this, a friendship or a mentorship could develop between them. This would be an interesting story as it combines two different elements from the Naruto universe.
The idea of Naruto sealing the Juubi is quite common in Naruto fanfictions. If Kurotsuchi is involved, it could be that the author wants to explore a different kind of relationship. For example, Kurotsuchi could be from a different village and her interaction with Naruto during this momentous event could lead to a new alliance or at least a better understanding between their respective villages. Also, the sealing of the Juubi by Naruto is no easy feat. It would require a great deal of chakra control and knowledge of sealing jutsus. Kurotsuchi, with her own skills in earth - based techniques, might be able to contribute in unexpected ways, like creating a stable environment for the sealing to take place.
One challenge could be acceptance. Since Ichigo is from the human world and a Shinigami, and Nemu is an Arrancar, their union might not be easily accepted by either the Soul Society or the Arrancar community. Another challenge could be communication. They come from different backgrounds and cultures, so understanding each other's values and ways of thinking might be difficult at times.
Definitely. In some fanfictions, they might be paired up in an alternate universe where the shinobi world has different rules or threats. This allows for a fresh take on their relationship. For example, they could be on a joint mission against a new, powerful enemy that forces them to rely on each other and in the process, their feelings develop. It's always exciting to explore these new interpretations of the characters in a romantic context.
The theme of mutual understanding is quite common. In these fanfics, they gradually come to understand each other better. For example, Kurotsuchi may start to understand Deidara's passion for art and Deidara may come to respect Kurotsuchi's scientific knowledge. Another theme could be the idea of sacrifice. There are stories where one or both of them are willing to sacrifice something for the other in the name of love. Also, the theme of discovery is present, as they discover new things about themselves and each other through their relationship.
The plot could involve Nemu saving Ichigo's life during a fierce battle. This act makes Ichigo see Nemu in a new light. They begin to spend more time together, sharing their past traumas and dreams. As they fall deeper in love, they decide to get married. However, they have to keep it a secret at first due to the political situation between Hueco Mundo and Soul Society. Eventually, their love story becomes an inspiration for others in both worlds.