Demon Slayer is all about survival and postponing death. Whenever they enter a battle against a (typically) more powerful enemy, the Hashira know that they might be enjoying their last moments on Earth. While their experience level varies, all the Hashira are young, to the point that one could argue that their lives have barely begun. Conversely, their mortal enemies, demons, are by nature long-living, existing for centuries as long as they keep their heads on their shoulders.
Demon Slayer: Every Major Character's Age, Height, And Birthday
A must-read for Demon Slayer fans: ages, heights, and birthdays of the series' most iconic characters!
Along with superhuman strength, resistance, and speed, demons are essentially immune to the passage of time, as they keep the physique they had when they were first turned. Consequently, demons are (by far) the oldest characters in Demon Slayer, with the Twelve Kizuki being particularly ancient. However, even within Muzan's ranks, the ages vary considerably.
Biological and chronological age are not the same. In order to ensure that there is a fixed standard to rank the characters, the latter has been used. There seems to be no clear clarification about the age of some characters. In those cases, the manga has been used as a source to estimate it.
7 Gyutaro
Daki's Dangerous Brother
- Age: 126+
- Manga Debut: Chapter 85
- Anime Debut: Episode 40
- Combat Style: Hemokinesis
Muzan Kibutsuji had always believed that Gyutaro was much stronger than what his rank represented and felt that he would have been better off without his sister, Daki. But for someone like him, who had protected his sibling all his life, Gyutaro could never bring himself to abandon her.
The sufferings of my past were lessons on what to do to others as revenge! If I don't cause misery equal to my own unhappiness, I'll never balance the scales! That's how it was when you're a demon! And we kill anyone who tries to tell us otherwise.
Gyutaro was just 13 years old when he was left for dead after trying to stand up for his sister in a dysfunctional society. He went on to become one of the most feared demons in existence. At the time of Gyutaro's transformation, Doma was already a member of the Twelve Kizuki, and since he turned into a demon after Akaza, he was undoubtedly younger than both of them. But it's noteworthy that Gyutaro was older than Gyokko, the former Upper-Rank Five.
6 Doma
The Upper-Rank Two of the Twelve Kizuki
- Age: 133+
- Manga Debut: Chapter 98
- Anime Debut: Episode 45
- Combat Style: Cryokinesis
Doma is arguably the most manipulative and malevolent demon alive. Despite being comparatively younger than demons like Hantengu, he has managed to rise through the ranks and establish himself as the strongest member of the Twelve Kizuki after Kokushibo. Doma was 20 years old when he was turned into a demon.
It seems you are mistaken. Heaven and hell do not exist in this world. Those things don't exist at all. They're made up. Just human conceits. The reality is that even those who live upright and good lives meet with misfortune while the wicked act as they please.
Doma is also the leader of a dangerous cult known as the Eternal Paradise Faith. Posing as people's savior, he earns his followers' trust and uses his authority to secretly eat them to quench his thirst for human blood. Claiming more human victims not only makes the Upper-Rank Two stronger but also helps him feel more youthful.
5 Akaza
The Upper-Rank Three of the Twelve Kizuki
- Age: 133+
- Manga Debut: Chapter 63
- Anime Debut: Episode 32
- Combat Style: Destructive Death
Akaza became a demon when he was just 18 years old and has been an important member of the Twelve Kizuki for many decades. He is presumably a few years older than Gyutaro, considering the time and age he was turned into a demon.
The Strongest Demons In Demon Slayer
There are several powerful demons present in the Demon Slayer anime. These characters are the most dangerous.
The Upper Three is much younger than Hantengu but has still managed to surpass him. Akaza can't stand Doma and is eager to challenge him to rise through the ranks. Presumably just a few years younger than the Upper-Rank Two, Akaza sees Doma as a competitor whom he must defeat at any cost. Despite being quite a strong demon who can instill fear in his adversaries, the Upper-Rank Three appears to be driven by an unending desire to get better.
Akaza and Domu's ages are probably the most disputed, but it seems more likely that the former is older than the latter. If nothing else, Domu being younger would add to Akaza's frustration at the fact that he is ranked lower.
4 Hantengu
The Prolific Criminal-Turned-Demon
- Age: 200+
- Manga Debut: Chapter 98
- Anime Debut: Episode 45
- Combat Style: Spear Projection, Wood Manipulation, Sonic Scream, Wind Blasts, Emotion Manifestation, and Electricity Generation
Alive for well over 200 years, Hantengu was a frightening demon whose bizarre personality and propensity to paint himself as a victim make him a dangerous and unpredictable adversary. Despite being one of the oldest demons alive, he lacked the mental fortitude to confidently assert his dominance and was instead frequently seen resorting to deception and evasion. But once Hantengu used to transform, he was almost impossible to stop.
3 Kokushibo
Muzan's Right-Hand Man
- Age: 480+
- Manga Debut: Chapter 99
- Anime Debut: Episode 45
- Combat Style: Moon Breathing
One of the most frightening demons in existence, Kokushibo was once a member of the Demon Slayer Corps. Despite being a skilled swordsman who had awakened his mark, he joined Muzan's forces, fearing his imminent death. He has served the Demon King for centuries and is perhaps his closest ally.
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Since the Sengoku era, Kokushibo has been through countless battles and vanquished formidable opponents and is undoubtedly the greatest swordsman in existence. His combat experience is unrivaled, and despite being alive for hundreds of years, he still carries the enthusiasm to refine his skills.
2 Tamayo
The Demon Who Vowed to Defeat the Demon King
- Age: 500+
- Manga Debut: Chapter 14
- Anime Debut: Episode 8
- Combat Style: Blood Bewitchment
Tamayo is the oldest known demon, second only to Muzan. She harbors a deep-seated hatred for the Demon King and is dedicated to aiding the efforts to bring about his downfall. Having lived since the Sengoku era, she has witnessed the golden age of demon slayers and has religiously studied the physiology of demons to figure out a medicinal cure to turn them back into humans.
I don't need to be stronger than you to kill you. I can just make you weaker. Just as you'll do whatever it takes to stay alive, I, no, we, will do whatever it takes to kill you!
Tamayo is close friends with Tanjiro and has been closely working with the Demon Slayer Corps ever since Ubuyashiki sought her help.
1 Muzan Kibutsuji
The Demon King
- Age: 1,000+
- Debut: Chapter 13
- Anime Debut: Episode 7
- Combat Style: Biokinesis
Over a thousand years ago, Muzan Kibutsuji was just an ordinary human being struggling with a terminal illness. The experimental treatment that he tried saved his life but ended up turning him into a demon. Although he gained immense powers in the process, he could no longer tolerate sunlight. With the fear of death imprinted in his subconscious, Kibutsuji sought immortality.
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Between the stunning animation and the tension of Muzan's encroaching demon army, the Demon Slayer anime features a cast of deeply complex characters.
Kibutsuji has been chasing his twisted plans since the Heian Era and has witnessed the rise of demon slayers as he wreaked havoc across generations. One of the few times his reign of terror was threatened was during the Sengoku Era when demon slayers almost succeeded in eradicating demons and Muzan himself. Now, in the Taisho period, he again faces a serious threat to his authority as the new generation of swordsmen has uncovered the secret that was behind the golden age of demon slayers.
- Release Date
- April 6, 2019
- Network
- Adult Swim
- Japanese Title
- Kimetsu no Yaiba
- Studio
- ufotable
- Based On
- Manga
- Creator
- Koyoharu Gotoge
- Streaming Service(s)
- Crunchyroll, Hulu, Netflix
