[Demon Slayer/Blood Demon] The main villain of the Mt. Natagumo Arc and the shocking truth about the Spider Blood Demon family!!

This story delves into the shocking truth about the Spider Blood Demon family, the main villains of the Mt. Natagumo Arc.

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1) The Spider Family, the Main Villains of the Mt. Natagumo Arc

The Spider Family, featured in Demon Slayer: Kimetsu no Yaiba, is the Blood Demon clan that serves as the main villains of the Mt. Natagumo arc. This family consists of a father, mother, two sons, and a daughter, all of whom possess the form of spiders. Their residence consists of an old mansion and surrounding wooden houses connected by spiderwebs. While seemingly a family, this family is in fact a terrifying collection of oppressed members under oppressive power.

However, this family is not simply a family. It is a role that Rui, one of the five most powerful Blood Demons, has forced upon his subordinates under the guise of "family games." Rui uses his power to transform his subordinates into spider-like figures and assigns them the roles of a fake family, forming a hierarchy centered around him. Therefore, their appearance and family structure can be seen as a product of Rui's manipulation and power mechanisms. Moreover, the Spider Family members, having borrowed various blood demon techniques from Rui, possess formidable combat abilities, making them a formidable force, even surpassing the average Demon Slayer. Even the seemingly weakest Blood Demon, identified as the mother, has slaughtered at least dozens of Demon Slayers. The Blood Demon, who plays the father, may lack intelligence, but possesses immense strength and endurance, rivaling the lower ranks of the Twelve Demon Moons. This was demonstrated when he fought Tanjiro and his group. Thus, the members of the Spider Family are all distorted beings created by Rui's coercion and power, demonstrating a fabricated organization whose very nature is dictated by his will, from appearance to strength and role assignments.

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2) Spider Family Members and Characteristics

The Spider Family consists of five members: a father, mother, two sons, and a daughter. The father possesses immense strength and a sturdy physique, possessing durability that renders weapons nearly ineffective, making him a formidable threat in battle. The mother, though comparatively weak, is a fearsome figure with the most slaughtered demons in the family. She is the most unfortunate and persecuted member of the family.

The two sons play the roles of the older brother and youngest brother. The older brother wields the terrifying Blood Demon Magic, transforming into a human-faced spider. The youngest brother is revealed to be Louis himself, the de facto ruler of the family. Louis rescued and adopted the daughter, who transformed her appearance, including her face, into something he desired. It is said that she has transformed from a weak-willed woman to a beautiful one.

This family is also marked by brutal conflict and betrayal. The Blood Demon, the daughter, who was once Louis' older sister, betrays Louis and causes the death of her own goblin sister, demonstrating her cruel side. Rather than a simple "family" relationship, various incidents reveal a distorted network of relationships solidified by role-playing, enforced by Rui to maintain power.

Rui not only changes the appearance of his family members, but also coerces them into fulfilling their roles and behaviors. Violations are subject to harsh punishments and torture. This clearly demonstrates that the Spider Family is a coercive aggregation of lower-level demons centered around the powerful figure of Rui, and that each demon is not an independent entity, but rather reliant on Rui's power.

In short, the Spider Family of the Mt. Natagumo Arc is a powerful group of Blood Demons whose appearance, abilities, and roles have been transformed or granted by Rui's power. While they appear to be a family, they are essentially a means for Rui to maintain his power and control his subordinates. Each member displays overwhelming combat prowess, overwhelming even the most powerful Demon Slayers, posing an overwhelming threat. This complex structure and powerful nature have made the Mt. Natagumo Arc a powerful storyline and source of conflict in Demon Slayer.

 

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3) Blood Demon Spider Family Member – Father

The Blood Demon spider family member, who served as the father, was first shown only from the back, but his actions left a strong impression with his assault on his wife. His repeated line, "Get away from my family," revealed his immense authority and violence within the family. However, what's interesting is that this seemingly violent behavior was carried out under Rui's orders. In reality, he was merely the leader of the group, subduing the family members according to Rui's will. The older spider's comment, "Mom's getting scolded by Dad again," suggests that he frequently resorts to violence against his wife, suggesting a pervasive sense of domestic tension and fear.

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Father's abilities are fully revealed in episode 34. His power is highlighted when he intervenes and blocks Tanjiro and Inosuke from attacking his daughter. Despite not using any blood demon techniques, he boasted immense strength and durability that even his armed sword could not easily penetrate, to the point that Tanjiro mistook him for a Twelve Demon Moon demon. This indicates that Abi was the strongest of Rui's subordinates, possibly even stronger than Kyogai. Unlike his family members, his face is a deep reddish-brown instead of white, and he appears in a grotesque spider-like form reminiscent of a Predator.

Abi, the father of the spider family, possesses a unique shedding ability that combines the characteristics of both spiders and insects. This ability, which increases in strength and size with each shedding, has been proven in actual combat. After Inosuke cut off his arm, he escaped and shed his body, reborn as a gigantic and powerful being, even Inosuke found it difficult to deal with. He later confronted Inosuke and attempted to decapitate him, but his skin was too tough to inflict significant damage. He then attempted to crush Inosuke's head, but was quickly defeated by Tomioka Giyuu. What's remarkable is that Abi was able to intimidate his opponents with his sheer melee prowess and powerful physique, without any special Blood Demon magic. Despite the biological risk of severely lowered defenses even in a molted state, he demonstrated an exceptional ability to overcome this weakness with an immediate boost in strength.

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As Abi, the Blood Demon, who assumed the role of Blood Demon, posed a significant threat in battle within the spider family with his overwhelming strength and unique biological characteristics. He also served as the oppressed leader of the family under Louis's authority, maximizing tension and fear within the family. As a figure who embodies the violent and unstable atmosphere within the family, he epitomizes the true nature of the spider family.

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4) Blood Demon Spider Family Member – Mother

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The first of the spider family to appear, the Blood Demon, serves as the mother. Using the strings attached to her fingers, she possesses the cruel power to draw people and objects from afar and manipulate humans like puppets, forcing them to kill each other. This Blood Demon was extremely ruthless in her manipulation of her puppets, forcibly twisting their joints to the point of bone and internal organ destruction. She would mercilessly dispose of useless puppets by twisting their necks, a practice that deeply angered Tanjiro.

Mother Blood Demon usually calmly maneuvered her puppets and carried out her missions, but when her youngest brother, Rui, scolded her for being "too late," she would quickly become frightened and panicked. Furthermore, she often displayed helplessness in the face of powerful orders, such as when Rui threatened to deliver a message to her father, begging her desperately for mercy and reluctantly accepting his request. In battle, in addition to manipulating puppets, she also deployed her secret weapon, the headless Blood Demon, to pressure her opponents. However, she was ultimately defeated and destroyed by the combined attacks of Tanjiro and Inosuke. Despite her trembling with fear just before her death, she finally gave up her resistance and offered her head to Tanjiro. Tanjiro then used the fifth form, "Drought Rain," to ensure her mother's peaceful and painless end. Her body vanished, not as a fiery image, but as a pure, luminous purification. Compared to other members of her clan, her death was relatively mild and peaceful.

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In this spider clan, the mother was not the boss; rather, she was the youngest member and ranked at the bottom of the family hierarchy. Ignored by her husband and children, including Rui, she assumed the role of mother. However, due to her own youth and inexperience, she often made mistakes in acting and transformations, which often led to reprimands. Unlike Rui, who had been a Blood Demon for the longest time, the mother was a relative newcomer, having only been a Blood Demon for 20 to 30 years. She too lived a short human life, suffering constant harassment from her family, ultimately becoming mentally debilitated and suffering to the point of attempted suicide. The fact that Tanjiro shed tears of joy when he decapitated her demonstrates the relief and peace she found in being freed from her suffering.

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Thus, Mother Blood Demon was the weak and oppressed figure within her family, yet her abilities as a demon were extremely cruel and threatening. Her puppeteering skills and brutal acts, contrasting with her immature hierarchy, created a unique irony and played a crucial role in creating dramatic tension and emotional depth within the Mt. Natagumo arc. Her death, while a relatively peaceful release, symbolically reveals the dark side of this complex family dynamic.

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5) Blood Demon Spider Family Member – Brother

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Blood Demon, who plays the role of the older brother, is a peculiar being with a spider body rather than a human one. He first appeared in episode 32. He hides behind a tree, laughing at the scene where his mother is beaten by his father, and later appears in spider form inside a house entangled in a web. Brother can bite humans and transform them into human-faced spiders. These mutants retain a somewhat human face but lose all their hair and become spider-like, losing their sense of self and becoming slaves. Brother also excretes a powerful venom from his mouth, powerful enough to destroy more than half a tree. Slaves transformed into human-faced spiders can also use poison, injecting their enemies with it through their barbed tentacles, making them extremely dangerous. The threat of this poison takes a heavy toll on Zenitsu, and his older brother mocks him as he dies in agony from fear.

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However, Zenitsu, who has awakened from sleep, decapitates him with a single blow, using his lightning-like attack, "Ichiryoku Ichisen" ("Thunderbolt Ichisen"). Zenitsu, fortunately, recovered quickly and escaped major damage. However, others who had been transformed into human-faced spiders long ago are known to suffer serious aftereffects, even if treatable, such as decreased physical function and intelligence. Meanwhile, a foul odor emanated from his brother's body, leading Zenitsu to vomit, saying, "Thank goodness Tanjiro's gone."

Thus, the older brother demon, with his unique abilities of venom and human-faced spider manipulation, posed a significant threat in battle. However, he was subdued by the awakened Zenitsu, and the aftereffects of the human-faced spider he created remained one of the Demon Slayer Corps' most challenging treatment challenges.

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6) Blood Demon Spider Family Member – Sister (姉)

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Sister, a member of the Spider Family who first appeared in Episode 32, was seen frowning from a tree, watching her father beat her mother. Her power, "Thread Binding," is a brutal technique that traps her opponents in a sphere of thread, dissolving them before they are consumed. Originally, her face bore no resemblance to Rui's, but at Rui's command, her face was altered to resemble his. Previously, Sister was a weak Blood Demon rescued by Rui. After joining his family, she and her sisters realized Rui's cruelty and fled. However, before fleeing, she betrayed Rui by revealing the sisters' whereabouts, ultimately leading to their death.

Sister prided herself on being relatively infallible within the family. Even when she accidentally revealed her true face to Rui, she remarked, "It was fortunate it only ended with a cut." She was extremely concerned about Rui's authority. This scene reveals Noona's realistic desire to survive as long as possible in peace, without straying from Rui's orders.

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However, her fate was cruel. She was suddenly confronted by Kochou Shinobu, and threatened with death if she disobeyed, ultimately begging for her life. When Shinobu asked her how many people she had killed, Noona lied, saying only five, as it was an order. However, Shinobu saw through this. He explained that Noona needed to endure a certain level of torture to atone for her sins, and he readily described horrific torture methods, such as gouging out her eyes and disemboweling her. However, his tone was gentle and lively, amplifying the chilling effect. Ultimately, Noona chose to fight out of fear, but Shinobu's intention in mentioning the torture was less to encourage actual torture and more to provoke her to fight, revealing her true nature.

Noona is a complex character, revealing her inner struggle to survive under Rui's control and ultimately, her human side, torn between betrayal and punishment. Her despicable actions, coupled with her fear and survival instinct, deeply reveal the tensions and complex psychology within the spider family. In this respect, the older sister is not simply an enemy, but rather a tragic figure struggling with power and violence, possessing a compelling appeal.

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7) Other Members of the Blood Demon Family

The Blood Demon spider family consists of a father, mother, older brother, older sister, and youngest sibling, along with other unique and powerful members. Their roles and abilities play a significant role in the Mt. Natagumo arc, adding to the tension and diversity of combat power within the family.

 

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The Headless Blood Demon is a secret puppet wielded by the mother, and, as its name suggests, is headless. It exhibits powerful combat and manipulation abilities beyond those of ordinary puppeteers, posing a threat that even Inosuke could be wounded if he were to let his guard down. However, its lack of a head doesn't mean it lacks weaknesses, and it was ultimately defeated in a coordinated attack by Tanjiro and Inosuke. Judging by its connected spider arms, it is believed to be one of the family members who received Rui's punishment.

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The Human-Faced Spider is a human-faced spider, like its older brother, but is not a true Blood Demon. It has a spider-like body and a human-like head, but is much smaller and has a perpetually pale expression. A bite from this human-faced spider initially causes severe physical deformation, including hair loss and shrunken limbs, along with excruciating pain. Zenitsu was the first to be attacked, but after his older brother's death and his sanity regained, he was collected by the Demon Slayer Corps and treated. However, according to Shinobu, even after a full recovery, the aftereffects remain severe. Zenitsu also suffered from shrunken hands for a while after the Mount Natagumo incident and took medication.

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The sisters are unique Blood Demons who appear in the anime's original scenes. They kindly welcomed their older sister when she first arrived at Mt. Natagumo. Fearing Rui, they attempted to escape with her, but unfortunately, the sisters swindled them out, leaving them severely injured and left hanging in a web, burning in the sunlight. While most Blood Demons view each other as mere food rivals, these sisters are impressive for their genuine care and concern for one another, despite being complete strangers.

 

 

In this way, the Blood Demon Spider Family, comprised of not only the main members but also other creatures with diverse personalities and abilities, such as the headless Blood Demon, the human-faced spider, and the sisters, creates a multifaceted and complex threat that goes beyond mere enemies. Each of these creatures is a powerful weapon, playing a crucial role in the conflicts within and outside the family and the unfolding of brutal events. In particular, the transformations and sacrifices of their subordinates, and the miserable reality under Rui's ruthless control, are key elements that maximize the tension of the Mt. Natagumo Arc.

Along with the family members discussed above, their differentiated abilities and relationships deepen the complex antagonisms evident throughout Demon Slayer: Kimetsu no Yaiba and serve as a crucial backdrop for the many tragedies that arise under Rui's formidable control. This structure significantly enhances the narrative weight of the work by depicting countless suffering beings, conflicts, and struggles for survival, transcending mere villainy.

 

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8) A Comprehensive Review of the Blood Demon Spider Family

The Blood Demon Spider Family is the core villainous group in the Demon Slayer: Kimetsu no Yaiba: The Natagumosan Arc, and their very existence embodies complex conflicts and narratives. They are not mere enemies, but a tragic group interwoven with power, coercion, betrayal, and sacrifice, maximizing the tension and immersion of the story.

The true nature of the Spider Family is a role-playing game forced upon his subordinates by Rui, the fifth member of the Twelve Demon Moons, under the guise of "family games." Each subordinate is transformed into a spider-like form by Rui's blood and powers, and each is forced to assume the role of a family member and obey them. Their fundamental drive for survival is sustained by Rui's authority and coercion, which manifests in brutal power struggles, betrayal, and psychological instability even within the family.

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Abi possesses immense strength and endurance, and despite lacking Blood Demon Jutsu, he is considered the strongest of Rui's subordinates. His ability, Shedding, evolves with battle, making him a powerful resource in pure close combat. However, due to the limitations of violence and power-maintaining methods, he remained a leader of action.

The mother was the first to appear in the family, and with her special thread-manipulating abilities, she cruelly manipulated and manipulated people like puppets. She was the youngest member of the family and ranked last in the hierarchy, suffering under Rui's oppression until ultimately being killed by Tanjiro. Her peaceful death and tears of joy symbolize the moment of liberation from suffering.

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The older brother was a monster with a spider body, possessing powerful venom and mutation abilities that could transform humans into human-faced spiders. However, he was ultimately brutally subdued by Zenitsu, who awakened from sleep. The mutated individuals are currently recovering, suffering severe aftereffects and pain. While his powers are powerful, they also reveal limitations and dangers.

The older sister was a weak being rescued by Rui, but ultimately met a brutal end, torn between betrayal and self-preservation. While deeply concerned with Rui's authority, she secretly yearned for survival. Her fear and human side are highlighted in her confrontation with Shinobu.

Other members, such as the headless Blood Demon, the human-faced spider, and the sisters, are dolls or deformed beings formed as punishment by Rui, adding a variety of colors and brutality to the family. The sisters, in particular, show genuine affection for one another, revealing a glimmer of humanity even within the brutal Blood Demon clan.

Overall, the Blood Demon spider family is a tragic and distorted family structure forged under the power and control of Rui. Each individual member is a complex being possessed of exceptional fighting prowess, unique abilities, and human psychology. They serve as a narrative device where coercion and survival, betrayal and despair intersect, playing a crucial role in deepening the storyline and character tension in Demon Slayer: Kimetsu no Yaiba. Through this, they establish themselves as more than just a villainous group, but as a symbolic group symbolizing internal destruction and the darkness within humanity.

 

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That's All

 

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