Well, it could be about Naruto somehow getting involved with the Dark Brotherhood. Maybe he's transported to their world and has to learn their ways while still keeping his ninja skills. He might face challenges like trying to fit in with their code of conduct.
The plot could involve Naruto being mistaken for a target by the Dark Brotherhood at first. But as they get to know him, they realize his potential and try to recruit him. He would then have to decide whether to join them or find a way back to his own world, all while dealing with their internal politics and power struggles.
If Naruto joins the Dark Brotherhood in a fanfic, he could bring his unique ninja skills. His shadow clones, for example, could be used for various sneaky missions the Brotherhood undertakes. However, his positive and optimistic nature might be a threat to the Brotherhood's more secretive and often amoral operations. The Brotherhood would either have to adapt to him or try to corrupt his good nature.
In addition to Naruto, the Night Mother could be a significant character in this fanfic. She could be the one who has a special interest in Naruto, seeing his potential as a great asset or a threat to the Dark Brotherhood. And of course, Naruto's friends from the Naruto world might also make appearances in some way, either in Naruto's memories or through some sort of cross - world connection.
Imagine the Dragonborn is on a mission for the Dark Brotherhood to assassinate a powerful figure in Skyrim. Brynjolf, being the observant character he is, notices the Dragonborn's strange behavior. As he investigates, he discovers the Dark Brotherhood Armor. The two then get into a complex situation where they have to balance the needs of the Dark Brotherhood, the Dragonborn's personal goals, and Brynjolf's own interests. The fanfic could delve into the moral and ethical dilemmas they face, as well as the action - packed sequences when they fight off those who oppose them.
Naruto's character would become more complex. His initial naivete about the world's darker aspects would quickly disappear. He'd become more cynical as he witnesses the actions of the Dark Brotherhood. His relationships with his old friends in Konoha would also be strained as they might not understand his new allegiance.
One possible fanfic could be about Brynjolf meeting the Dragonborn who is wearing the Dark Brotherhood Armor. Maybe the Dragonborn is on a secret mission related to the Dark Brotherhood, and Brynjolf gets caught up in it. They could form an unlikely alliance to face the challenges that come their way, with the unique powers of the Dragonborn and Brynjolf's skills in thievery and combat complementing each other.
It's a fantasy tale filled with adventure and mystery. Draganborn might be a powerful hero fighting against the evil forces of the Dark Brotherhood.
One common theme is the exploration of loyalty. In the Dark Brotherhood context, Brynjolf might be involved in complex loyalty webs. He could be torn between his loyalty to the Dark Brotherhood's code and his personal relationships. Another theme is secrecy. The Dark Brotherhood operates in the shadows, and Brynjolf would have to keep many secrets. Fanfictions might delve into how he manages to keep his true identity and activities hidden from the outside world. Also, there's often the theme of moral ambiguity. The actions of the Dark Brotherhood are not always morally upright, and Brynjolf's character can be used to explore how one copes with such morally grey areas.
You can start by looking on popular fanfic platforms like Archive of Our Own or Fanfiction.net. Just type in the keywords 'Brynjolf Dark Brotherhood Armor' in their search bars, and it should show relevant fanfics.
The fanfic can also be interesting because of the character development. Brynjolf could change as a result of donning the Dark Brotherhood Armor. He might start as his usual self but gradually become more brooding or dangerous. The contrast between his original character and the new persona influenced by the armor can make for a very engaging read. There could also be interactions with other characters in the Dark Brotherhood that are full of drama and intrigue.
Maybe in this fanfic, Naruto has been influenced by some dark force or a traumatic event that makes him turn to Orochimaru. Orochimaru, seeing Naruto's potential, convinces him to work together. Naruto's tasks could involve helping Orochimaru in his experiments. However, as time passes, Naruto realizes the true evil nature of Orochimaru and has to struggle between the loyalty he feels due to the power he's gained and his own moral compass.