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.
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.
3 He Manipulated Rui When He Was At His Weakest
It was only later he realized they did love him, and that he was the one who was never able to recognize their love. However, Muzan showed up at that very moment and brainwashed young Rui.
Therefore it is quite evident that Muzan doesn't love his family. They are merely tools to achieve his goal of true immortality and wreak havoc in the years to come.
Since Muzan favored Gyutaro so much, he chose to incorporate the latter's sister Daki as well. The demon king believed that she was the only tool that could be used to control Gyutaro.
Tsukito, Yorogi, Kuraku, and Isatsu all agree that they are loyal to Muzan.
He has a wife and a daughter that loves him, but he is in the marriage for the sake of surviving. Muzan calls his wife, Tsukahiro. Those are the facts about Muzan Kibutsuji, the strongest and immortal demon from Kimetsu no Yaiba.
Over his long lifetime, Muzan had a number of families. This includes the one he was born into before becoming a demon. Additionally, he took 5 wives, making each one's life miserable.
1 Muzan Regretted Killing His Doctor
He shows his most human side to fans, wherein he admits to regretting murdering his doctor. He comments that had he been patient, the doctor would have cured him, and he would never have turned into a demon.
The only reason why Muzan hates Doma is because of his insincerity and lack of emotions. This might sound odd, expecting emotions from a demon, but even a demon has to retain such tendencies to keep things in order.
3 Muzan Mainly Liked Daki Because Of Her Potential To Earn Money.
The warrior Muzan feared was a swordsman named Yoriichi Tsugikuni. Yoriichi was the only slayer before Tanjiro who came close to killing Muzan, and the flashback of their fight occurred in Chapter 187.
3) Muzan and Nezuko.
Conversation. Fun fact: The reason why Enmu was able to say Muzan's name out loud without dying is because they're married!
For those who have watched only the first season of the anime, they will be surprised to know that Muzan turns into a woman in the second season. He keeps transforming in order to hide his true identity, and he's even known to change into an 11-year-old child to hide from Demon slayers.
Yoriichi was powerful enough to defeat Muzan; however, he couldn't do so. That's because he couldn't come down to kill his twin brother, leading to his own demise. Even to this day, Muzan is scared of Yoriichi.
The two known demons who broke free of Muzan's curse are Tamayo and Nezuko. Tamayo was able to break free of the condemnation when Yoriichi fought Muzan, nearly killing him in the process. During this weakened state, Yoriichi let Tamayo go, free her from Muzan, and free her from the curse.
Even after becoming a powerful demon, Muzan considered himself imperfect and wanted to somehow get rid of his weakness of sunlight.
Roughly 1,000 years ago, during Japan's Heian Period, Muzan Kibutsuji was declared stillborn after his heart stopped beating multiple times inside his mother's womb. As he was about to be cremated, Muzan coughed and squirmed on the pyre, indicating this young, sick infant still had the will to live.
Haruka Shiraishi: Muzan's Daughter.
During his final struggle, and as a way to slow down the effects of the sunlight, Muzan adopts an enlarged demonic infant form, approximately as tall as a 3 story building when standing up. In this form he has very pronounced blood vessels across his body, small claws in his hands and fanged teeth in his mouth.
Based on the familiarity in which the two conversed at the end of the story, and the fact that she was beside him when he fought Yoriichi, suggest that he did have some fondness for Tamayo, though why in never covered.
With her jovial and concerned attributes, as well as her “Moshi Mosh,” It is no wonder that Shinobu is the most liked Hashira in Demon Slayer.
14) Muzan Kibutsuji (over 1000)
Being a demon, Muzan is capable of living for many, many years. However, unlike other demons that have aged over hundreds of years. Muzan is well over 1000 years old.