Friendship also remains a key theme. Even with the power of the dagger, Naruto still values his friends. The fanfic might show how his relationships are tested and strengthened when the dagger is involved. For instance, his friends might be suspicious of his new power, but in the end, they come to trust him again as they realize he's using it for the right reasons.
Time manipulation is a major theme. Since there is a dagger of time, the characters often deal with changing the past or seeing possible futures. For example, Naruto might use it to save his friends who died in the original story.
Often, the main characters in 'naruto dagger fanfic' include the main cast from the original Naruto series. However, some fanfics may focus on minor characters who are given a more prominent role due to their connection with the dagger. For example, a weaponsmith who created the dagger or a ninja who was the last known wielder before Naruto discovers it. Their stories and how they interact with Naruto and the others can make for an interesting 'naruto dagger fanfic'.
Another theme is the power of friendship. Naruto is known for his strong bonds with his friends in the original series. In the fanfic, these friendships are tested and strengthened as they face the unknown together, similar to how the characters in 'A Wrinkle in Time' rely on each other during their adventures.
Kabuto could also be a great antagonist. After learning so much from Orochimaru, he could see the potential in the cloak and dagger and want to use them to prove himself as a powerful ninja. He could be constantly trying to outwit Naruto and take the items for himself.
One popular 'naruto dagger of time fanfic' could be 'Naruto: The Time - Altered Blade'. It has an interesting plot where Naruto discovers a dagger with time - altering abilities and how it changes his journey in the ninja world.
One popular 'naruto dagger fanfic' might be those that involve a character using a dagger in a unique way during a battle. For example, a story where Naruto discovers an ancient dagger with special powers and has to learn how to control it while facing a powerful enemy. It could add an interesting new element to his combat style.
One main theme is often redemption. The characters might go back in time to fix their past mistakes using sealing powers. Another theme could be power exploration. They discover new sealing techniques during time travel.
One idea could be to have a character from Naruto end up in the Cloak and Dagger universe. For example, Naruto himself could be transported there and his unique abilities like the Rasengan would be a shock to the characters in that world. He might team up with Cloak and Dagger to fight against a common enemy, perhaps a group that is trying to steal the powers of both universes.
One of the main themes is loyalty. The Brotherhood members are extremely loyal to each other in their fight against the Lessening Society. Another theme is love and sacrifice. We often see characters sacrificing their own well - being for the sake of their loved ones or the greater good within the vampire society depicted in the novels.
One common theme could be friendship development. Since they are both characters in the Kuroshitsuji universe, their relationship might start as acquaintances and grow into a deeper bond in fanfics. Another theme might be adventure, where they go on some sort of journey together.
First, you need to do your research on both Naruto and Cloak and Dagger. Know the characters, their powers, and the settings well. For example, in Naruto, the different clans and their jutsus are important elements. In Cloak and Dagger, the light and dark powers and the social issues in their world matter. Then, come up with a unique plot. Don't just copy existing storylines. You could start with a situation like a dimensional rift that brings the two worlds together.