Warning: The following contains spoilers for Demon Slayer Hashira Training Episode 7!!
While Demon slayerFans are eager to know what will happen next in the series, others are worried about a possible plot hole and wondering why couldn't Muzan find the leader of the Demon Slayer Corps before. Fortunately, this has been explained by the series' author, Koyoharu Gotouge.
Muzan became the first demon, and his goal from then on was to achieve immortality without fear of death. For this reason, he sought to find the Blue Spider Lily, and also continued to create more demons in the hopes that one of them would be able to withstand sunlight. However, after a thousand years, Muzan's goal still did not go as planned.
Those standing in the way of Muzan becoming a perfect being are the Demon Slayer Corps, currently led by Kagaya Ubuyashiki, so he aims to destroy them. Muzan has never been closer to his goal, as Nezuko has been able to overcome sunlight. Additionally, episode 7 of the Demon Slayer Training Chapter shows that the Demon King finally finds the location of the Ubuyashiki family.
Why couldn't Muzan find Kagaya Ubuyashiki before the Demon Slayer's Hashira training
Ubuyashiki's family has been intricately hidden since the Sengoku period
The leader of the corps is a position that has been held by the head of the Ubuyashiki Clan, also known as the Oyakata, for generations. The reason why Muzan could not find Kagaya Ubuyashiki, the current Oyakata, before the events of the Hashira Training Arc were outlined in the filler in volume 21 of the Demon Slayer mangaIt is revealed that during the Sengoku Era, Kokushibo, the High Priest of the Moon 1, attacked the Demon Slayer Corps' mansion, killing the previous head of the Ubuyashiki clan, Oyakata's father from that era, and bringing his head to Muzan.
Since then, More efforts were made to conceal Oyakata's whereabouts., leading to the formation of Kakushi, a rear support faction in charge of combat missions, assisting in concealing the locations of the Ubuyashiki family, the Legion, and the Swordsmithing Village. Additionally, Ubuyashiki's cunning kept them out of Muzan's reach. This is shown in Demon Slayer's Blacksmith Village Part 3, episode 1, during Muzan's reunion with the High Moon, when he complains about how Ubuyashiki's clan has not been destroyed, and Kokushibo states that Ubuyashiki very smart in hiding his whereabouts.
The main reason Muzan is now able to identify the Ubuyashiki clan, despite his active attempts to find and kill the clan, there I give Nakime. By receiving Kibutsuji's blood, if a demon can adapt to the blood, it can grant them even greater power. After Muzan shared more of his blood with Nakime to transform her into the new Upper Moon 4, her already good detection ability increased significantly. Muzan forces Nakime to find Ubuyashiki's mansion.and she is eventually able to find it by following several members of the Corps.
Muzan sought to destroy the Demon Slayer Corps out of fear
Muzan tries to destroy everything that reminds him of his death.
One of the reasons why Kibutsuji hates the Demon Slayer Corps is because of its connection to Sun Breath. During the Sengoku period, a swordsman using the Sun breathing style, who was the strongest demon assassin of all time, seriously injured Muzan. That's why he wanted to strengthen the demons to achieve the ultimate destruction of the demon slayers. Muzan wishes to become the perfect eternal being, and that leads him to try to erase everything that reminds him of his weakness.
Kibutsuji was born in the Heian period and was always on the brink of death, even while still in his mother's womb, from an incurable disease that would have killed him if he had not become a demon. Because he is part of the Ubuyashiki Bloodline, he believes that if the family disappeared completely, he would destroy everything that tied him to humanity and reminded him of his mortality. The confrontation between Muzan and Ubuyashiki's clan is shown in the ending theme of the Hashira Training Arc, where shadows show Kibutsuji killing the oyakata of previous eras.
Kibutsuji tracks the location of the Demon Slayer Corps to find Nezuko
Muzan couldn't locate Nezuko like he could with the other demons.
Kibutsuji can track and read the minds of any demon he has transfused blood with, but Nezuko, along with Tamayo and Yushiro, The only demons who can escape his rule. Muzan wants to find Nezuko to absorb her, but since she has escaped his control, the only way he has to locate her is to find out where the Demon Slayer Corps is, as indicated in the Arc. Hashira Demon Slayer training episode 6.
Muzan's actions undeniably show that he is a terrifying villain and a skilled strategist, and it proves that the author of Demon Slayer, Gotouge Koyoharu, has not only explained what seems like a hole in the story but also planned everything to add more depth to Muzan's character. from his pursuit of immortality, his fears, his egotism, and his past to his interactions with other characters. For these reasons, the meeting of both leaders Muzan and Ubuyashiki, one who unites the feelings of others and inherits them and one who exploits others and eliminates them, promises to be a highlight in Demon Slayerthe story of.