NaDaki

NaDaki
NaDaki is the femslash ship between Nakime and Daki from the Demon Slayer fandom.

Canon
Nakime and Daki are both Demons who serve directly under Muzan. Nakime would be assigned to escort Demons, specifically those of the 12 Kizuki. To Muzan immediately right away. However, despite being demons who serve Muzan, neither of these two have had any interactions onscreen, but with the information given the possibility of Nakime and Daki ever interacting are small, but not impossible. As Nakime is always in the presence of Upper Moons when she summons them to the Demon King. Gyutaro was also harbored inside of Daki's body for majority of the time. When Enmu was thinking about how the other Upper Ranks possess otherworldly powers, he visualized all of the Upper Ranks, but not Gyutaro, despite the latter being the true Upper Moon 6. With that it can be deduced that Daki was active for most of the time as Upper Moon 6. Which increases the chances of her and Nakime having a potential interaction.

With that being said they both possess personalities that vastly differ each other. Daki would be very arrogant and dismissive to the point where she deemed any Demon Slayer that wasn't a Hashira as unworthy of her time. Whereas Nakime has a humble and quiet character, never to brag about her own abilities and is also next to emotionless and would be very brief with her responses.

However, these two have quite similar traits as well. Both Daki and Nakime display an explicit loyalty towards Muzan. Nakime would always follow any of Muzan's orders without hesitation and never questions his demands. Whilst Daki immediately bows down to him and speaks to him very meekly as if transfixed by his presence alone. Just like the former, Daki was very unquestioning and would always accept Muzan's demands. Daki would even display enjoyment in having time with just Muzan, as seen when she is laying down on his knee. But Nakime's loyalty is viewed as genuine loyalty, while Daki's is viewed as an obsession.

But Muzan only truly favored Nakime, despite the two showcasing around, if not equal obedience towards him. Due to her intense usefulness to his plans. Not only that but he actually compliments her growth and even thanks for successfully locating every last Demon Slayer in the country, along with Kagaya Ubuyashiki. For Daki however, in actuality, he doesn't think highly of Daki and even thought that she was holding back her brother.

Both of them are also, in a weird way, improper Upper Moons. Daki is merely viewed as the Secondary holder of Upper Rank 6 and Nakime was only promoted to an Upper Rank Demon after the death of Hantengu. But with that in mind, these two were the only female demons that were able to become truly powerful, as they both were the only two Upper Ranks that were female. Demons like, The Spider Demon Sister, Spider Demon Mother, Susamaru, and even Mukago. Were inferior to these two demonesses, exemplifying how strong these two were able to become.

Fanon
NaDaki is quite the rarepair due to the irrefutable fact of them having no interactions onscreen. But despite that, it is relatively supported inside the community as somewhat alike ShinoMitsu these two are the only females Upper Ranks among the Twelve Kizuki, just like how Shinobu and Mitsuri are the only two Hashira that are women.

Some people also joke around and convert their loyalty to Muzan, into a competitive rivalry.

It's also tended to be shipped due to the limit of ship that consists of these two characters. It has 24 works on AO3.