Why did Muzan kill Tanjiro’s family in Demon Slayer?

Demon Slayer: Kimetsu no Yaiba is a manga and anime series that features a compelling storyline, strong character development, and stunning visuals. 

At the heart of the narrative is a profound tragedy: the slaughter of protagonist Tanjiro Kamado’s family by the primary antagonist, Muzan Kibutsuji. 

This event kickstarts the plot, propelling Tanjiro into his journey as a demon slayer. But why did Muzan target Tanjiro’s family? 

Muzan’s Background

Muzan Kibutsuji is the first and most powerful demon in the Demon Slayer universe. He is responsible for the creation of almost every other demon, either directly or indirectly. 

His primary goal is to conquer the sun, meaning he seeks to evolve into a demon that can survive daylight, thus removing the only major vulnerability demons have.

Randomness of the Attack

Initially, it was thought that the killing of Tanjiro’s family was a random act of cruelty. Demons, especially ones as powerful as the main antagonist, routinely kill humans either for sustenance or out of sheer pleasure. 

In the earlier parts of the story, it’s portrayed as though Muzan stumbled upon Tanjiro’s family in his search for food and slaughtered them without a second thought. 

From this perspective, Tanjiro’s family was just an unfortunate group that crossed paths with the most formidable demon.

Nezuko’s Potential

However, as the story unfolds, it becomes clear that there may have been more to the attack. After the massacre, Nezuko, Tanjiro’s younger sister and the sole survivor besides Tanjiro, transforms into a demon. 

However, she retains a part of her consciousness and doesn’t feast on humans. Her unique nature as a demon intrigues many characters in the story, including Muzan. 

It is hinted that Muzan, in his endless quest for power and evolution, is always on the lookout for unique bloodlines or individuals who might possess traits beneficial to his goal of conquering the sun. 

Nezuko’s latent potential might have drawn him to the Kamado family.

Muzan
Image Source: Ufotable

The Blue Spider Lily 

One of Muzan’s key goals is to find the Blue Spider Lily, a mythical plant that, according to legends, has properties that could potentially make demons immune to sunlight. 

While it’s not explicitly stated that the Kamado family had a direct link to it, there is speculation and fan theories about the earrings that Tanjiro wears, the “Hanafuda Earrings,” are somehow connected to the Blue Spider Lily.

Muzan’s interest in Tanjiro’s earrings throughout the series lends some credence to this theory, suggesting that the Kamado family might have unknowingly possessed something Muzan desperately desired.

Legacy of the Breath of the Sun User

Another significant aspect is the Kamado family’s connection to the “Breath of the Sun” style, the original and most potent breathing technique from which all other forms derive. 

As the story progresses, it’s revealed that Tanjiro’s ancestor was a Breath of the Sun user who almost defeated Muzan in the past. The dance that Tanjiro’s father performed, the “Dance of the Fire God,” is intrinsically linked to the Breath of the Sun techniques. 

While Muzan may not have been consciously aware of this connection when attacking the Kamado family, the ancestral link between the Kamados and a formidable enemy from his past adds another layer to the narrative.

No Perfect Answer

While the exact reason for Muzan’s slaughter of Tanjiro’s family remains a mix of intentional plot choices and speculative connections, it’s evident that the Kamado family was not merely an incidental target. 

Their unique position in the Demon Slayer universe, from Nezuko’s potential to the legacy of the Breath of the Sun, made them a focal point in Muzan’s evil plans. 

This tragic event, rooted in complex backstories and intertwined fates, sets the stage for an epic confrontation between Tanjiro and Muzan.


Also Read: Why did Ryuk drop his Death Note into the human world?

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