Why Muzan Kibutsuji Couldn't Find Kagaya Ubuyashiki Before
Demon Slayer fans are buzzing about Muzan Kibutsuji finally finding Kagaya Ubuyashiki's location. It seems like a plothole, but Koyoharu Gotouge already explained it!
Muzan wants immortality, and he's been searching for the Blue Spider Lily for centuries. He's also creating demons, hoping one will be strong enough to survive sunlight. But the Demon Slayer Corps stands in his way, especially Kagaya Ubuyashiki, the leader.
The Demon Slayer Corps' Secret
The Ubuyashiki Clan has led the Demon Slayer Corps for generations. A volume 21 extra revealed that in the Sengoku Era, Kokushibo, Upper Rank Moon 1, attacked the Demon Slayer Corps' mansion. He killed the previous leader of the Ubuyashiki Clan and gave his head to Muzan.
After that, the Ubuyashiki family and the Corps went into hiding. The Kakushi, the rear support faction, were formed to protect them. Kagaya Ubuyashiki's smart moves helped keep them hidden, too! Kokushibo even mentions how clever Kagaya is in the Swordsmith Village Arc.
Nakime's Enhanced Detection
Muzan's blood grants demons incredible power. When he shares his blood with Nakime to make her the new Upper Moon 4, her senses get a major upgrade.
With her heightened powers, Nakime tracks down members of the Demon Slayer Corps, leading Muzan to Kagaya Ubuyashiki's home. That's how he finally finds them.
Muzan's Fear of the Sun Breathing
Muzan hates the Demon Slayer Corps because of the Sun Breathing technique. In the Sengoku Era, a powerful demon slayer using Sun Breathing seriously hurt Muzan. That's why Muzan wants to destroy the demon slayers and become perfect. He wants to get rid of everything that reminds him of his weakness.
The Ubuyashiki Bloodline is connected to Muzan's past. He thinks that if the clan disappears, he'll get rid of the memories of his human life and the fear of death.
Finding Nezuko
Muzan wants Nezuko because he wants to absorb her power. She's escaped his control, but he can track her through the Demon Slayer Corps.
Muzan's search for Nezuko shows how determined he is, and it also reveals that Koyoharu Gotouge planned this all out. He's building up the tension between Muzan and Kagaya, and their clash will be a highlight of Demon Slayer.
