How Old Is Benimaru in Demon Slayer Anime Facts

Many fans exploring the vast world of anime might find themselves curious about specific characters and their intricate details. If you've been wondering "how old is Benimaru in Demon Slayer," it's an excellent question to ask, but with a surprising twist! Benimaru, the fiery commander of the Kijin and powerful warrior, is actually a prominent character from That Time I Got Reincarnated as a Slime, not the demon-slaying epic of Koyoharu Gotouge's Demon Slayer: Kimetsu no Yaiba.
While Benimaru isn't part of Tanjiro's journey to turn Nezuko back into a human, the Demon Slayer universe itself is rich with fascinating characters, each with their own unique ages and backstories that profoundly shape their roles in the battle against Muzan Kibutsuji and his demons. Perhaps your curiosity truly lies in understanding the ages of the Demon Slayer Corps members, the formidable Hashira, or even the ancient demons they face. Let's dive into the true ages and vital statistics of the characters who truly inhabit the Demon Slayer world.

Unpacking the Ages of Demon Slayer's Protagonists

At the heart of Demon Slayer are Tanjiro Kamado and his companions, who begin their perilous adventure at remarkably young ages. These characters carry immense burdens and face unimaginable horrors, all while still in their formative years. Understanding their ages adds a layer of depth to their struggles and growth throughout the series.
Tanjiro Kamado, the kind-hearted protagonist with an unyielding will, is introduced at the age of 13. By the time he embarks on his journey with the Demon Slayer Corps, he is 15 years old for the majority of the storyline. His birthday falls on July 14th, and he stands at 5'5". His younger sister, Nezuko Kamado, who was tragically turned into a demon, was 12 years old at the time of her transformation. She is 14 years old for most of the narrative, with a birthday on December 28th, and a height of 5'0".
Their fellow demon slayers also fall into similar age brackets. Zenitsu Agatsuma, the often-cowardly yet incredibly powerful Thunder Breathing user, is 16 years old, born on September 3rd, and is 5'4¾" tall. The wild and unpredictable Inosuke Hashibira, raised by boars, is 15 years old, celebrating his birthday on April 22nd, and stands at 5'4½". For a complete overview of every major player, you'll want to explore . If Tanjiro's specific timeline fascinates you, be sure to check out for all the crucial details.

The Formidable Hashira: A Spectrum of Experience

The Hashira, the elite swordsmen of the Demon Slayer Corps, represent the pinnacle of skill and dedication. Their ages vary significantly, reflecting different levels of experience and wisdom gained through years of battling demons. From the youthful prodigies to the seasoned veterans, each Hashira's age contributes to their unique fighting style and personality.
Among the ranks of the Hashira, Muichiro Tokito, the Mist Hashira, is the youngest at a mere 14 years old, born on August 8th. His height is 5'3". Shinobu Kocho, the Insect Hashira, is 18 years old, with her birthday on February 24th, standing at 4'11½". Mitsuri Kanroji, the Love Hashira, is 19 years old, born on June 1st, and is 5'6" tall. Kyojuro Rengoku, the Flame Hashira, was 20 years old before his untimely demise, born on May 10th, and stood at 5'9½".
Several Hashira are in their early twenties: Giyu Tomioka (Water Hashira), Sanemi Shinazugawa (Wind Hashira), and Obanai Iguro (Serpent Hashira) are all 21 years old. Tengen Uzui, the flamboyant Sound Hashira, is 23 years old. The eldest and arguably the strongest among them is Gyomei Himejima, the Stone Hashira, who is 27 years old, born on August 23rd, and stands impressively at 7'2½". Discover more about these powerful warriors in .

The Ancient Evil and Its Impact on Lifespans

Beyond the human heroes, the world of Demon Slayer is dominated by the terrifying presence of demons, led by their progenitor, Muzan Kibutsuji. Their ages are often measured in centuries or even millennia, highlighting the vast difference in power and experience they hold over mortals.
Muzan Kibutsuji, the King of Demons, is an entity of immense age, having existed for over 1,000 years, even exceeding 10,000 years according to some interpretations. His human appearance during the Heian Era was that of a 19-year-old, a facade he maintains to blend into human society. He stands at 5'10½". Another powerful demon, Akaza, appears as a human approximately 18 years old, masking his true, much older existence. For an in-depth exploration of the primary antagonist, make sure to read .
The very act of becoming a Demon Slayer, particularly one powerful enough to manifest a Demon Slayer Mark, often comes with a severe price. This special mark, a mysterious pattern that appears on a slayer's body, grants incredible power but traditionally curses its users, causing them to die by the age of 25. The legendary Yoriichi Tsugikuni, born with the mark, was a unique exception, living to around 85 years old and defying this fate. The implications of this curse, and whether it affected characters like Tanjiro in the series' future, are a source of much discussion among fans. Understand the full ramifications of this dangerous power in .

Beyond the Misconception: The Richness of Demon Slayer's Lore

While Benimaru may not be a character from Demon Slayer, the anime offers an incredibly rich tapestry of characters whose ages, backstories, and destinies are intricately woven into its thrilling narrative. From the youthful determination of the main trio to the battle-hardened resolve of the Hashira and the ancient evil of Muzan, every character's age adds significant context to their journey and struggles. Diving into these details enriches your understanding and appreciation of this beloved series. Keep exploring and enjoying the fascinating world of Demon Slayer!