The only two people she really cares for are Muzan Kibutsuji and her older brother. She shows deep respect for Muzan Kibutsuji immediately falling into a bow when he appears. Although she cares and loves her brother she is seen insulting and blaming him at times when things aren't going well.
Daki and Gyutaro
Muzan is shown to have a positive master-servant relationship with Daki, as the young Demoness seemingly worships and admires the Demon Progenitor immensely, fervently hanging on each and every one one of his words and doing her absolute best to accomplish the tasks he gives her.
Despite being hundreds of years old and losing all of his human memories, Gyutaro has a strong attachment to his younger sister, Daki. Gyutaro promising Daki that they will always be together.
Despite his negative traits, Gyutaro possessed a genuine, strong love for his younger sister, Ume.
Returning to her room, Daki was surprised to see Muzan Kibutsuji. Bowing to her master, she listened as he praised her for her newfound strength, cautioned her against getting careless, and stated his high hopes for her as a special Demon.
DakiTan. DakiTan is the ship between Daki and Tanjiro Kamado.
She Is Over 100 Years Old
Even though Daki has a youthful appearance, she is actually over 100 years old. Many of Muzan's demons look young, but it is especially surprising to learn that Daki is one of the oldest demons.
In the eighth episode of the "Entertainment District" arc, Upper Six Gyutaro couldn't stop gushing over his man-crush on Tengen.
Akaza. Because of his desire to become stronger and Doma's strength allowing him to surpass himself to become Upper Two, Akaza harboured an intense hatred of Doma.
Akaza was also one of Muzan's favorite demons out of all his subordinates. The reason behind this is Akaza's extreme loyalty to his master. The Upper Rank Three demon was always sent away on special missions, something the Upper Rank 1 and 2 were often denied of.
Trivia. Anne was originally planned to be Muzan`s older sister, who died by the hand of a Demon Slayer but that idea was scrapped, as the author knew practically nothing about Muzan`s early life. Instead, Anne became his wife, by which he had two children.
However, this all came to an end when Ume stabbed a samurai costumer of hers in the eye when he insulted her brother. In retaliation, she was bound, burned alive and left to die in a ditch.
Gyutaro even went as far as giving Daki one of his eyes to power her up, but also so he could literally keep an eye on her while they fought separately. Gyutaro claimed to Tengen that he and Daki are two people in one, and it became clear he didn't only mean their power and status as Upper Six, but their bond.
In fanon they usually portray Douma being comically in love with Shinobu while she despises him, or they both falling in love with each other and developing a romantic relationship despite Shinobu's initial reluctance.
Haruka Shiraishi: Muzan's Daughter.
The only Demon he despises the most is the Upper Rank Two: Doma. It is quite a shocker that the second most potent Demon in the Demon Slayer is not Muzan's favorite.
Despite being a blood-thristy demon who has murdered several people, he has a set of principles he adheres to. One thing that Demon Slayer fans have noticed is that Akaza refuses to eat or kill women. Additionally, the Demon King, Muzan, gave Akaza special permission to do so.
After Akaza's death, Doma says that he felt as if the Upper Rank had turned into a different creature before he died, and that his demise is inevitable because he never ate any women. Doma begins to cry over his 'best friend's' death, but Kanao just tells him to stop with the lies.
Doma also displayed what arguably is his first true emotion, love, when he proclaimed his love for Shinobu after finding her cute.
Shizuka is seen often teasing Sanemi and making him annoyed, nevertheless, the two had still created a strong bond and relationship with each other. Eventually, after knowing each other for a while, Shizuka finally ended up having the courage and confessed, leading to them getting married after awhile.
It is confirmed in the Volume 23 extras that Inosuke and Aoi did eventually end up together and that they have two great-grandsons, one of which is Aoba.
Like most of the characters, Tengen Uzui does have a descendant that looks just like him. His descendant is named Tenma Uzui and he's an Olympic-level gymnast representing Japan.
Daki is highly sexualized despite being biologically thirteen years old. While it could be argued that her sexualization is part of her story, as she is a courtesan, it still can leave more mature fans feeling a little weird.
6) Daki. Given that she is the only demon on this list, it is quite obvious that the Demon Slayer fan base considers her to be a waifu merely for her appearances.
Daki received a third eye that Gyutaro had implanted on her forehead. Her reflexes were quicker, her movements were sharper and her strength improved quite drastically. If we take a closer look, it was Gyutaro's left eye that was implanted on her forehead.