10 Oldest Demons in Demon Slayer

Demon Slayer is undoubtedly one of the most popular anime series of recent times. The story follows the journey of Tanjiro Kamado, a young man trying to save his sister from the demon’s curse. Along the way, he encounters several powerful demons, each with unique abilities and backstories.

In this article, we’ll explore the ten oldest demons in the Demon Slayer universe. From the terrifying demon, Muzan Kibutsuji, who turned Tanjiro’s sister into a demon, to the mysterious Kokushibo, who has been alive for over 400 years, we’ll delve into the fascinating world of these ancient demons. So, if you’re a Demon Slayer fan looking to learn more about the series, or just a casual reader curious about the lore, keep reading to discover the oldest and most powerful demons in the Demon Slayer universe.

10. Nakime

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Nakime is a character from the manga and anime series Demon Slayer: Kimetsu no Yaiba. She is a member of the Twelve Kizuki, a group of powerful demons who serve under the series’ main antagonist, Muzan Kibutsuji. Nakime serves as the demon in charge of the Infinity Castle, which serves as the Kizuki’s headquarters.

Nakime is depicted as a young girl with long black hair and red eyes. She has a calm and composed demeanor and rarely speaks. Instead, she uses her abilities as a demon to create a magical room within the Infinity Castle that allows her to communicate with the other Kizuki and control their movements.

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Nakime’s powers include the ability to create illusions and manipulate the memories of those within her magical room. She can also summon powerful demon creatures to aid her in battle.

9. Gyokko

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Gyokko, a tall and muscular man with long white hair and green eyes, is a character in the Demon Slayer: Kimetsu no Yaiba manga and anime series. He belongs to the Twelve Kizuki, a group of powerful demons who serve Muzan Kibutsuji, the main antagonist of the series. Gyokko is sadistic and derives pleasure from physically and mentally tormenting his enemies. He can manipulate and control mud to create lethal weapons and traps.

Gyokko first appears in Chapter 98, where he is assigned the task of eliminating the series’ protagonist, Tanjiro Kamado, and his companions. Gyokko is a challenging adversary due to his unpredictable mud-based attacks. However, Tanjiro and his friends eventually overcome him by exploiting his vulnerabilities and delivering a decisive blow.

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Gyokko’s defeat is a significant victory for the protagonists as it weakens the Twelve Kizuki’s overall power and brings them closer to defeating Muzan Kibutsuji.

8. Daki

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Daki is a character from the manga and anime series Demon Slayer: Kimetsu no Yaiba. She is a member of the Twelve Kizuki, a group of powerful demons. Daki’s powers include the ability to manipulate and control threads, which she can use to create powerful illusions and control the minds of her opponents.

In addition to her powers of thread manipulation and mind control, Daki is also a skilled fighter who possesses incredible speed and agility. She is able to move quickly and dodge attacks with ease, making her a formidable opponent. Daki is often seen accompanied by her brother, Gyutaro, who also serves under Muzan Kibutsuji as a member of the Twelve Kizuki.

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As the proprietor of the Kyogoku House, Daki is shown to be ruthless and cruel towards her subordinates, often punishing them severely for even the slightest mistakes. Despite this, she is also shown to have a softer side, particularly towards her brother.

7. Gyutaro

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Gyutaro is a character in the Demon Slayer: Kimetsu no Yaiba manga and anime series. He is the younger brother of Daki, another member of the Twelve Kizuki. Despite his youthful appearance, he possesses immense strength and speed, making him a formidable opponent. His powers include the ability to manipulate and control threads, which he can use to create illusions and control the minds of his opponents.

Gyutaro has a close bond with his sister, Daki. Together, they run a brothel in Tokyo’s Yoshiwara pleasure district, where they prey on unsuspecting victims for their blood. Despite his loyalty to his sister and the Twelve Kizuki, Gyutaro has a conflicted and tragic past. He and Daki were kidnapped and turned into demons by Muzan Kibutsuji when they were children. Gyutaro was the only one who survived the transformation and was left with the responsibility of protecting his sister, who retained her memories and emotions despite being turned into a demon.

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Gyutaro’s character is his unique fighting style, which involves the use of threads. These threads are incredibly strong and can be used to create illusions, control the minds of his opponents, and even slice through objects with ease.

6. Doma

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Doma is a notable character in the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. He is one of the Twelve Kizuki, a group of powerful demons who serve under the primary antagonist, Muzan Kibutsuji. Doma is portrayed as an eccentric and flamboyant demon who possesses the unique ability to manipulate emotions, inducing intense joy or sadness among his targets. He is also capable of changing his appearance and form by manipulating his own body.

Doma’s first appearance is in Chapter 94 of the manga, and he subsequently appears in the second season of the anime. His role is to track down the series’ main characters, including the protagonist Tanjiro Kamado and his allies. Doma is a formidable adversary due to his exceptional abilities and great strength, which pose significant challenges to his opponents.

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In the series, Doma is an intriguing character whose nuanced persona and singular motivations add depth and complexity to the villains.

5. Akaza

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Akaza is a character in the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. He is one of the Twelve Kizuki, a group of powerful demons who serve under the main antagonist, Muzan Kibutsuji. Akaza is depicted as a tall and muscular demon with distinctive red markings on his face, arms, and legs.

Akaza is a skilled fighter and has the ability to regenerate his body, making him a challenging adversary for the series’ main protagonist, Tanjiro Kamado, and his allies. He also has the unique ability to manipulate the element of fire, which he can use to create powerful and destructive attacks.

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Akaza has a complex personality that adds depth to his character. He is initially shown as a ruthless and merciless killer who takes pleasure in the suffering of his opponents.

4. Hantengu

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Hantengu is a character in the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. Hantengu’s unique power to split himself into multiple clones allows him to control and manipulate his surroundings by creating illusions that confuse his opponents. Each of his clones possesses a unique personality, appearance, and ability that makes him a formidable adversary for the series’ main protagonist, Tanjiro Kamado, and his allies.

Despite his fearsome abilities, Hantengu is shown to have a conflicted and tragic past. Like many of the other members of the Twelve Kizuki, he was once a human who was turned into a demon by Muzan Kibutsuji. His experience as a demon has left him with a deep sense of loneliness and emptiness, which he tries to fill by creating multiple personalities within himself.

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Hantengu’s character plays a significant role in the series’ overarching plot, as he serves as a primary antagonist during the series’ “Entertainment District” arc.

3. Kokushibo

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Kokushibo is a powerful demon in the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. He is a member of the Twelve Kizuki, a group of demons that serves as the main antagonists of the series. Kokushibo is considered to be one of the strongest demons in the series, and his combat abilities make him a formidable opponent for the series’ protagonist, Tanjiro Kamado, and his allies.

Kokushibo’s appearance is that of a tall, muscular man with long hair and distinctive markings on his face. He is depicted as being calm, calculating, and ruthlessly efficient in his actions, making him a dangerous adversary for any who oppose him. He is also shown to have a strong sense of loyalty to his fellow demons and to the series’ main antagonist, Muzan Kibutsuji.

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One of Kokushibo’s most notable abilities is his mastery of the Moon Breathing technique, a powerful form of swordsmanship that allows him to move at incredible speeds and deliver devastating blows to his opponents.

 2. Tamayo

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Tamayo is a key character in the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. She is a demon who defies the typical portrayal of her kind, as she chooses to use her powers for good and actively works to find a cure for demonhood. Her compassionate and empathetic nature sets her apart from many of the other demons in the series, and she quickly becomes a valuable ally to the series’ protagonist, Tanjiro Kamado, and his allies.

Tamayo is depicted as being intelligent and resourceful, with a deep understanding of demon biology and physiology. She has dedicated her life to studying demons and finding a way to reverse the process that transforms humans into these creatures, ultimately hoping to find a cure for her own condition. To this end, she creates a special medicine that can temporarily suppress the urges of demons to feed on humans.

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She has a tense relationship with the series’ main antagonist, Muzan Kibutsuji, as he sees her as a threat to his rule over the demon world.

1. Muzan Kibutsuji

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Muzan Kibutsuji is the main antagonist and is the oldest character of the popular anime and manga series Demon Slayer: Kimetsu no Yaiba. He is the leader of the demon race and is known for his immense power, intelligence, and cruelty. Muzan is depicted as being calm and collected, with an unwavering confidence in his abilities and a deep-seated desire for power and control.

As a demon, Muzan possesses immense strength and regenerative abilities, making him virtually immortal. He is also able to transform humans into demons with just a single scratch, creating an army of loyal followers that he can use to achieve his goals. Muzan’s powers also extend to his ability to manipulate and control his own blood, which he can use to create deadly weapons and attack his enemies.

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Throughout the series, Muzan is shown to be extremely intelligent and manipulative, able to easily deceive those around him and bend them to his will.