However as Muzan slowly died from sunlight and his final reflection on his life, he came to genuinely accept Kagaya Ubuyashiki's words to him on the fact that everything dies in the end no matter what, and, even he would experience death one day as the only true "immortal" thing in the world are someone's emotions, ...
So, in conclusion, it looks like Muzan will never be able to conquer the Sun ever. Moreover, even if he manages to get near Nezuko to assimilate her powers, Tanjiro won't just sit quietly behind and watch. Sportskeeda Anime is now on Twitter!
Demons are naturally susceptible to the sun light, and we know that the only demons that could avoid being burned were (SPOILER) Nezuko and Tanjiro.
The Demon Slayer series does explain why Nezuko is suddenly immune to sunlight, but only in the ending chapters of the manga. Since Nezuko is from a Sun Breathing lineage, she can survive in daylight.
Muznan found out about Nezuko's unique ability thanks to Hantengu. As we have said, Nezuko's ability to conquer the Sun is unique when demons are concerned. Namely, Demons are generally weak to sunlight, and if exposed to it, the sunlight will kill them. Even Muzan is not an exception to this.
Nezuko is at least stronger than Daki, meaning that if Muzan could bring her back under his control, she would certainly qualify for the most prestigious title a demon can hold: a member of the Twelve Kizuki. Thanks to Nezuko's remarkable strength, she would have to be an Upper-Moon.
The “Swordsmith Village” arc ended with the major reveal that Nezuko, unlike every other demon, can't be killed by sunlight, which then put her at the center of the final arc due to Muzan wanting to eat her to obtain that same immunity and become truly immortal.
Tanjiro is among the strongest Sun Breathing users seen in the series and the fact that he was able to fight the all-powerful Muzan, who is known for his tremendoous power, on an equal footing using this power is proof of that.
Yoriichi Tsugikuni, the first demon slayer, is the founder and also the first user of Sun Breathing. But as per Demon Slayer's timeline, Tajiro Kamado is the only alive Sun Breathing user.
Since Kiriya Ubuyashiki announced the disbanding of the organization, Tanjiro doesn't get the chance to become a Hashira. The series also features an extended finale set in modern-day Japan. Descendants of the Kamado, Hashibira, and Agatsuma families are close, just like their ancestors.
After he neutralizes Tamayo's poison and emerges from his flesh cocoon, Muzan's hair grows in length and turns white due to Shinobu's poison accelerating his age. He also grows numerous mouths all over his limbs, each one lined with a set of incredibly sharp fangs.
Curse of Kibutsuji
This curse besotted any who partake of Muzan's blood must be careful. The curse prevents Muzan's name from being spoken aloud, and any who do will meet a horrible demise. One demon, Susamaru, faced this reality when battling Tamayo.
Muzan Kibutsuji's main weakness is sunlight, as seen when Gyōmei destroyed his head and he still couldn't manage to regenerate it. He tried to overcome this by devouring Nezuko, but that failed. He also has a weakness to Nichirin Blades, as they are the only way to kill him.
1 Yoriichi Tsugikuni (Demon Slayer)
Yoriichi's mastery of the Sun Breathing technique, combined with his incredible speed and agility, made him a formidable opponent for Muzan.
Muzan is well over 1000 years old. Despite achieving an age that no one else has, his appearance makes him look like an adult man in his early to mid-30s.
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.
The Thirteenth Form of the Sun Breathing Style is unique in the sense that it doesn't really have a name of its own. Rather, it's a combination of all the twelve forms present in this style, used in succession to maximize their power.
Moon Breathing is the demonic form of the primal Sun Breathing in Demon Slayer anime and manga. Developed by Kokushibo, aka Michikatsu Tsugikuni, this is the second most powerful breathing technique in the series that no human can use. Moreover, it also has more forms than any other type of breathing.
11. Eleventh Form:Dragon Sun Halo Head Dance (Juichi no Kata: Nichiun no Ryū Kaburimai?, lit. "Solar Halo Dragon Dance") - Possibly the Sun Breathing 's most powerful singular technique.
Yoriichi Tsugikuni is the creator of the Sun Breathing style and is also the strongest demon slayer that has ever lived.
Secondly, Muzan would probably… eat Nezuko and Tanjiro in the hopes of obtaining their sun-resistance abilities, and also since he wouldn't be able to convince them to become demons to work under him. This would allow him to become the ultimate demon.
Muzan's Recipe For Immortality
He wanted to be able to walk in the sunlight and live forever. In order to gain this, he needed two things: the Blue Spider Lily and the body of a demon who could withstand the sun.
1 Muzan (Demon Slayer)
Without that antidote, it would have been impossible to kill him. So despite all her strength and humanity, Nezuko would have easily lost to Muzan.