Obanai Iguro - Demon Slayer (Kimetsu no Yaiba)

Obanai Iguro is a skilled warrior and member of the Pillars in the popular manga and anime series Demon Slayer: Kimetsu no Yaiba. He is known for his fast swordplay, unique technique called "Serpent Breathing," and ability to control a snake named Nagi.

1. Appearance

Obanai Iguro is a figure of tall, lean grace. His hair, which is short and dark, is kept in a neat, cropped style that enhances the serious nature of his features. At times, lighter hues seem to blend into his hair, giving it a black and gray impression under certain lighting.

An unusual element of his appearance is his eyes, or more specifically, the white, serpentine blindfold that obscures them. This blindfold conceals a curse that altered his right eye into a snake-like form.

Iguro's attire is a typical Demon Slayer Corps uniform, consisting of a black gakuran jacket, hakama pants, and white sandals. He also wears a white haori, a traditional Japanese half-coat. It has a scale-like pattern that matches his snake theme.

To complete his appearance, Iguro is always accompanied by his snake, Kaburamaru. The white serpent often coils around its master, adding an extra layer of mystery to Iguro's persona.

2. Personality

Iguro initially comes across as an uncompromising and stern individual, known for his strict adherence to the Demon Slayer Corps' rules. His commitment to the eradication of demons is unwavering. He isn't hesitant to voice his thoughts, regardless of their popularity.

Beneath this austere exterior, however, is a past steeped in tragedy. A family massacre perpetrated by demons left him as the sole survivor. Consequently, a profound loathing for these creatures resides within him. This traumatic experience also led to a deep-seated mistrust of others, including his Demon Slayer comrades.

As the series progresses, we witness a gradual change in Iguro's character. He opens up and develops a sense of camaraderie through his interactions with Tanjiro and the other main characters.

Another dimension of Iguro's personality is revealed through his relationship with his snake, Kaburamaru. His ability to communicate with the creature shows his deep connection with the snake. It represents a softer, more compassionate side of his character.

3. Abilities and Fighting Style

The Serpent Breathing Technique

"The Serpent Breathing Technique is a unique and deadly fighting style employed by Obanai Iguro in Demon Slayer. This fighting method is inspired by the swift, flexible, and deadly movements of a snake, symbolizing the deadly power of the Serpent Pillar.

Understanding the Serpent Breathing Technique

The Serpent Breathing Technique involves imitating the movements and characteristics of a snake. This includes quick, agile movements, sudden and powerful strikes, and the ability to adapt to different situations, like a snake adapting to different terrains.

Forms of the Serpent Breathing Technique

The Serpent Breathing Technique is divided into several forms, each with its own unique movements and attacks. For example, the "First Form: Winding Serpent" is a fast, winding attack designed to hit the enemy from unexpected angles. The "Second Form: Poison Fang of the Narrow Head" involves a series of quick, piercing attacks aimed at the enemy's vital points, reminiscent of the bite of a poisonous snake.

The Serpent Breathing Technique in Battle

In combat scenarios, Iguro employs the Serpent Breathing Technique with deadly efficiency. His maneuvers are both swift and unpredictable, often leaving his adversaries little opportunity to counter. His attacks, robust and accurate, aim to swiftly disable or destroy his foes.

A notable example of Iguro's use of this technique is his fight against the Upper Moon Demon. Here, he uses the "Fourth Form: Twin-Headed Reptile," where he unleashes a flurry of strikes from multiple directions, overwhelming his opponent with the sheer speed and unpredictability of his attacks.

Iguro's Unique Abilities: An Exploration

Iguro's primary ability is his mastery of the Serpent Breathing technique, a form of combat in which the user mimics the movements of a snake. It allows him to move with extraordinary flexibility and speed, like a snake striking its prey. This technique also involves precise, powerful strikes aimed at vital points, designed to quickly incapacitate or kill the enemy.

In addition, Iguro has a heightened sense of touch, a trait that allows him to detect minute changes in his surroundings. This ability proves invaluable in battle, allowing him to anticipate attacks and react quickly.

Iguro's Battle Strategy: An In-depth Analysis

The Serpent Breathing technique plays a significant role in shaping Iguro's combat style. He approaches conflicts with a level-headed and strategic mindset, biding his time to deliver a lethal strike at the perfect moment. His enhanced tactile awareness aids him in evaluating the battlefield, allowing him to predict and respond to his adversary's actions.

In battle, Iguro's adaptability is noteworthy, as he can modify his techniques to suit the situation. For instance, he can alter the course of his attacks midway to outwit his enemies or use his natural flexibility to dodge incoming assaults. Additionally, Iguro is adept at utilizing his environment to his advantage, whether by leveraging the terrain to mask his movements or by laying traps for unsuspecting opponents.

4. Battles

Iguro and Kanroji vs. Upper Moon Six

This iconic battle takes place in Infinity Castle, where Iguro and Kanroji face off against Upper Moon Six. Iguro's Serpent Breathing technique shines in this encounter, especially in his use of the "First Form: Winding Serpent," which allows him to strike with precision and speed. His mastery of the "Fourth Form: Twin-Headed Reptile," proves essential in countering the Moon Demon's relentless attacks.

Kanroji, the Love Pillar, complements Iguro's style with her Love Breathing technique, and shines when she unleashes her "Fifth Form: Joyful Raindrops of Love," unleashing a flurry of fast and powerful attacks that disorient the demon.

The battle is intense, and Iguro and Kanroji are pushed to their limits. However, their combined efforts and the combination of their unique techniques ultimately overwhelm Upper Moon Six, leading to its defeat.

Iguro vs. Demonic Moon

In this late-night encounter, Iguro faces another powerful demon under the haunting glow of the moon. This is Iguro's "Second Form": Venom Fang of the Narrowhead" becomes a key move, allowing him to deal a deadly blow to the demon. He also uses "Third Form: Slithering Serpent" to dodge the Demon's attacks, demonstrating his impressive agility and control over his Serpent Breathing technique.

The battle is grueling, with the moonlit setting adding an extra layer of suspense. Iguro's agility and strategic use of his Serpent Breathing techniques effectively counter the demon's onslaught. His victory over the Demon Moon solidifies his status as a powerful Pillar.

Obanai Iguro vs. Nakime, the Upper Moon Four

In the Infinity Castle Arc, Obanai Iguro and the Love Hashira, Mitsuri Kanroji, face off against the Upper Moon Four Demon, Nakime. Nakime's powers allow her to manipulate the dimensions within the castle, making navigation and combat incredibly difficult. However, Iguro and Kanroji use their respective Breath Styles and teamwork to counter this. Iguro uses his Breath of the Serpent techniques to deliver precise blows that target Nakime's weak spots. At the same time, Kanroji complements his attacks with her Breath of Love abilities. Despite the confusing environment and Nakime's relentless attacks, Iguro and Kanroji manage to emerge victorious.

Obanai Iguro and the Hashira vs. Muzan Kibutsuji

Later in the series, a climactic battle takes place against Muzan Kibutsuji, the Demon King himself. The Hashira, along with other members of the Demon Slayer Corps, take on the daunting task of confronting Muzan. In this intense battle, Iguro demonstrates his mastery of the Breath of the Serpent style, using his techniques to land several critical strikes on Muzan. He also uses his snake, Kaburamaru, to assist in the fight, adding an unpredictable element to his fighting strategy.

Although he is able to land significant blows, Muzan's strength proves to be too much, and in the end, Iguro sacrifices his life in pursuit of victory. The battle ends with the combined efforts of the remaining Hashira and the Demon Slayer Corps, resulting in Muzan's defeat.

5. Relationships

Iguro and Mitsuri Kanroji

Iguro and Mitsuri Kanroji share a deep relationship that goes beyond mere comradeship. Mitsuri Kanroji, the Pillar of Love, is a formidable slayer with a warm personality that contrasts with Iguro's more reserved and stoic demeanor. Beneath Iguro's cold exterior, however, lies a deep respect and affection for Kanroji.

A notable moment that exemplifies their relationship is during their battle against the Upper Moon Demons. Despite the overwhelming power of their enemies, Iguro and Kanroji work in seamless coordination, with Iguro using his Serpent Breathing techniques to create openings for Kanroji's powerful Love Breathing attacks. This synergy is a testament to their understanding and deep connection.

Furthermore, their relationship extends beyond the battlefield. Iguro's protective nature toward Kanroji is evident in his concern for her well-being, while Kanroji's respect for Iguro is reflected in her trust in him to make crucial combat decisions.

Iguro and Sanemi Shinazugawa

Obanai Iguro's relationship with Sanemi Shinazugawa, the Wind Pillar, is a bit more complex. Shinazugawa's brash and confrontational personality often clashes with Iguro's more reserved and introspective nature. However, this tension is more a result of their different personalities than any deep-seated animosity.

One of the most telling moments in their relationship is when they fight an Upper Moon demon together. Despite their contrasting personalities and fighting styles, they manage to effectively synchronize their attacks, underscoring their mutual respect and dedication to their cause.

Iguro and Kaburamaru

Kaburamaru is more than just a pet to Iguro; they share a bond of trust, loyalty, and mutual respect that is reflected in their seamless cooperation in battle. Iguro's Serpent Breathing technique is closely tied to Kaburamaru, who often assists Iguro in scouting, delivering quick attacks, or even defending against enemy attacks. This relationship also highlights Iguro's softer side, as evidenced by his care and concern for Kaburamaru's well-being.

Iguro and Gyomei Himejima

Himejima's immense physical strength and compassionate nature contrast with Iguro's agile fighting style and more aloof personality. However, they share a deep understanding of the sacrifices required in their profession. Notable examples of their interactions can be seen during strategic discussions, where Himejima's wisdom and Iguro's keen instincts contribute to the formulation of effective battle plans.

Iguro and Kanao Tsuyuri

Finally, Iguro's relationship with Kanao Tsuyuri, a fellow Demon Slayer and the Kochou siblings' adopted sister, is also worth noting. Iguro, who often prefers to keep to himself, recognizes Kanao's skills and determination and acknowledges her as a valuable ally in their shared mission.

6. All Storyline of Obanai Iguro

Childhood and Origins

Obanai was born into a family with a dark secret - they were cursed by the demon Muzan Kibutsuji, turning them into demons. Obanai was the only human child in the family, but his cursed blood gave him heterochromia, a condition in which his eyes are different colors. As a child, Obanai witnessed the demonic nature of his family and was horrified. One day, he was discovered and saved by a Demon Slayer, who killed his family but spared Obanai's life.

After this traumatic experience, Obanai was taken in by the Serpent Hashira of the previous generation. He began to train in the art of Serpent Breathing, a swordsmanship technique that allowed him to fight demons effectively. Obanai dedicated his life to becoming a Demon Slayer and sought to rid the world of demons.

Becoming the Serpent Hashira

Obanai's dedication and relentless training eventually earned him the title of Serpent Hashira, one of the nine pillars of the Demon Slayer Corps. As a Hashira, Obanai was responsible for leading the other Demon Slayers in their mission to eradicate demons and protect humanity.

Encounter with Tanjiro Kamado

Obanai crossed paths with the series' protagonist, Tanjiro Kamado, when the young Demon Slayer was accused of breaking the rules of the Corps by traveling with his demon sister, Nezuko. Obanai and the other Hashira were initially suspicious of Tanjiro. Over time, Obanai developed a sense of respect for Tanjiro, despite their initial animosity.

Final Battle and Sacrifice

In the final battle against Muzan Kibutsuji, Obanai and his fellow Hashira put their lives on the line. Despite the great danger and overwhelming power of their enemy, they fought with determination. Obanai was instrumental in this battle, using his Serpent Breathing technique to attack Muzan and protect his comrades.

The last moments of Obanai's life were marked by his courage. He sacrificed himself to protect Mitsuri, demonstrating his deep love for her and his devotion to the cause of the Demon Slayer Corps. His death was a poignant moment in the series.

7. Interesting Facts

  • Obanai Iguro is the Serpent Hashira of the Demon Slayer Corps.
  • He was born into a family that was cursed by a demon. This resulted in many of his family members being born with deformities.
  • Obanai himself was born with heterochromia, resulting in his two different eye colors.
  • He has a scar on his face, which is usually covered by his mask. This was a result of his family's curse.
  • Obanai is one of the few characters in the series who uses the Serpent Breathing style.
  • His primary weapon is a katana, which is specially made to kill demons.
  • Despite his tough exterior, Obanai is known to be quite caring and protective, especially towards his fellow Demon Slayers.
  • He has a close relationship with his snake Kaburamaru, who assists him in battle.
  • Obanai is particularly skilled at sensing the presence of demons.
  • His favorite food is tomatoes.
  • Despite his stoic personality, he has a deep-seated fear of the Upper Rank demons.
  • He has an intense dislike for demons due to his tragic past.
  • Obanai's Japanese voice actor is Kenichi Suzumura, while his English voice actor is Erik Scott Kimerer.
  • He is particularly close with Mitsuri Kanroji, the Love Hashira, and their relationship is a significant part of his character arc.
  • Obanai’s uniform is unique, with a white snake-skin pattern that matches his Serpent Breathing style.
  • Obanai often keeps his feelings to himself, making him somewhat of a mysterious character.
  • His dedication and loyalty to the Demon Slayer Corps is unwavering.
  • Obanai is one of the top swordsmen in the entire Demon Slayer Corps.
  • He has a strong sense of responsibility and often blames himself when things go wrong.
  • Obanai is a highly respected figure among the other members of the Demon Slayer Corps.
  • Despite his usually serious demeanor, he has a soft spot for cats.
  • His ultimate goal is to rid the world of demons to prevent others from experiencing the same tragedy that befell his family.
  • Obanai is known for his cool and composed demeanor during battles.
  • His fighting style is characterized by swift and precise movements, much like a serpent.
  • Obanai makes the ultimate sacrifice in the battle against Muzan Kibutsuji, demonstrating his bravery and dedication to the cause.
  • Despite his tragic end, Obanai's legacy lives on in the hearts of his comrades and future generations of Demon Slayers.
  • Obanai's story serves as a powerful reminder of the human spirit's resilience in the face of darkness and despair.

8. Popular Quotes

"We must master our breathing, relax our bodies, and quiet our hearts."

"I will never forgive the evil of this world."

"A swordsmen who cannot cut down one demon cannot call himself a Hashira."

"We may die here today, but the will of the Demon Slayer Corps will never die!"

"I have fought and killed demons... It's only fitting that I meet my end in battle."

"Even if I have to give my life, I will protect others."

"In the face of adversity, we must move forward."

"I'm not afraid of demons... I'm afraid of not being able to protect those I care about."

"We may be different, but we are all in this fight together."

"The only thing we can do is to keep moving forward, even if it's into the darkness."


  1. "Obanai Iguro" - Kimetsu no Yaiba Wiki - https://kimetsu-no-yaiba.fandom.com/wiki/Obanai_Iguro
  2. "Obanai Iguro" - Anime-Planet - https://www.anime-planet.com/characters/obanai-iguro

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