In Naruto x NCIS fanfiction, a cool concept could be a crossover mission. Imagine the NCIS team having to deal with a threat that has ties to the ninja world. The NCIS agents' forensic skills combined with the ninjas' combat and stealth abilities would make for an exciting story. For instance, Zoro from NCIS could learn some basic ninja moves from Naruto to enhance his own combat skills in a particular case.
One idea could be that some of the NCIS agents are sent on a mission to a world that has similarities to the Naruto universe. They could team up with Naruto and his friends to solve a mystery that involves both their worlds, like a powerful weapon that could disrupt both dimensions. The NCIS agents would be shocked by the ninja skills and chakra usage, while Naruto and his friends would be intrigued by the advanced technology of the NCIS.
Iruka and Ducky. Iruka is a teacher in Naruto, and Ducky is an experienced medical examiner in NCIS. They could bond over their love for knowledge and helping others. Iruka could learn about modern medical examination from Ducky, and Ducky could be fascinated by Iruka's understanding of ninja - based education and how it shapes young minds.
One common theme is the clash of cultures. Naruto's shinobi world has very different values and ways of doing things compared to NCIS. So, in many fanfictions, there are moments where the characters have to navigate these differences.
One popular theme is the clash of cultures. The ninja culture from Naruto and the military - like investigative culture of NCIS make for an interesting mix. For example, how Naruto's use of chakra and jutsu is perceived in the NCIS world.
One challenge is merging the two very different universes. NCIS is more about traditional law enforcement and military investigations, while Watch Dogs is centered around hacking and a cyberpunk - like urban environment. Another challenge is keeping the characters' personalities true to their original portrayals. For example, Gibbs from NCIS has a very distinct way of leading his team, and it can be hard to make that work when combined with the more tech - savvy and edgy characters from Watch Dogs. Also, the technology in Watch Dogs can be quite complex, and explaining it in a way that fits into the NCIS world without making it seem out of place is difficult.
One common theme is friendship evolving into something more. Abby's friendly nature makes it easy to build a connection with other female characters in fanfiction, and often that connection deepens over time. Another theme is the contrast between Abby's goth - like appearance and her sweet personality with the other female character's own distinct traits.
One common theme is romance. Writers often explore the relationship between Delilah and the OC, showing how they fall in love, overcome obstacles, etc. Another theme could be mystery, as NCIS is a crime - solving show. The OC might get involved in a case and work alongside Delilah to solve it.
Many NCIS Gibbs x OC fanfictions focus on the OC's backstory and how it intersects with Gibbs' life. For example, if the OC has a military background like Gibbs, it can create a connection between them. Also, there are themes of redemption. If the OC has made mistakes in the past, the story might be about them finding a new purpose and a new family within the NCIS team led by Gibbs.
Maybe there's a hidden Templar plot that has ties to a military case the NCIS is investigating. An Assassin discovers this connection and has to work with the NCIS agents, who are initially skeptical of this person with such strange abilities and knowledge. They gradually learn to trust each other as they uncover the Templar conspiracy together.