Set to release in July 2025, Demon Slayer: Kimetsu no Yaiba – Infinity Castle Arc is one of the most anticipated films worldwide.
This cinematic masterpiece, which has redefined the history of Japanese manga and anime, is finally entering its final chapter.

In this article, we’ll take a deep dive into the characters that appear in this epic saga—uncovering what makes each of them truly compelling.
Whether you’re a long-time Demon Slayer fan or a newcomer to the series, this guide is perfect for both a refresher and a primer.

Let’s begin with the story’s main protagonist: Tanjiro Kamado.

◆What is "Demon Slayer"?

Originally serialized in Weekly Shonen Jump from February 2016 to May 2020, Demon Slayer: Kimetsu no Yaiba has surpassed 150 million copies in cumulative manga sales. Set in Japan's Taisho era, the story follows Tanjiro Kamado, a young boy who joins the Demon Slayer Corps after his family is slaughtered by demons and his sister Nezuko is turned into one. His mission: to find a way to turn her back into a human.

The anime adaptation began with the Tanjiro Kamado, Unwavering Resolve Arc broadcast in 2019, followed by the record-breaking release of Demon Slayer: Mugen Train in October 2020. The saga continued with the Entertainment District Arc in December 2021, the Swordsmith Village Arc in April 2023, and most recently, the Hashira Training Arc aired from May to June 2024.

The upcoming Infinity Castle Arc serves as the direct sequel to the Hashira Training Arc and will be presented as a three-part theatrical release.

◆Who is Tanjiro Kamado?

Full Name: Tanjiro Kamado
Birthday: July 14
Age: 15 (13 at the beginning of the story)
Height: 165 cm (156 cm at the very beginning)
Affiliation: Demon Slayer Corps – Swordsman (Initial rank after Final Selection: Mizunoto)
Origin: Foothills of Mount Kumotori, Okutama District, Tokyo Prefecture
Weapons: Nichirin Sword (with a jet-black blade)
Wooden box (used to carry Nezuko on his back)
First Appearance:
Manga: Chapter 1 “Cruelty”
Anime: Episode 1 “Cruelty”

Tanjiro is a kind-hearted boy born as the eldest son in a family of charcoal burners. Deeply devoted to his family, he is characterized by a distinctive scar on his forehead—a burn mark from his childhood.

Tanjiro’s journey begins with a tragedy: Muzan Kibutsuji, the progenitor of demons, attacks the Kamado household in the mountains of Kumotori. His mother and siblings are slaughtered, and his only surviving sibling, Nezuko, is turned into a demon. Determined to find a way to return her to human form, Tanjiro sets out on a journey. Together with Nezuko, he joins the Demon Slayer Corps and, wielding his Nichirin sword, begins to grow stronger as he battles demons.

◆Breathing Styles and Sword Techniques

Tanjiro Kamado masters two main styles of Breathing Techniques in his battles.

● Water Breathing
The foundational style Tanjiro learned from his master, Sakonji Urokodaki. It is characterized by graceful and fluid swordsmanship that mimics the flow of water.

First Form: Water Surface Slash
A fundamental horizontal slash delivered with precision.

Second Form: Water Wheel
A spinning upward slash, utilizing the entire body’s rotation.

Third Form: Flowing Dance
A series of soft, flowing strikes while moving fluidly like a stream.

Fifth Form: Blessed Rain After the Drought
A merciful strike used to sever a demon’s neck painlessly, typically when they accept death.

Tenth Form: Constant Flux
A powerful and rapid spinning attack that increases in force and speed with each rotation.

Tanjiro also adapts and creates new forms during combat, demonstrating exceptional creativity and flexibility in battle.

● Hinokami Kagura (Dance of the Fire God)
Later revealed to be the origin of the Sun Breathing, this style is based on a ritual dance passed down from Tanjiro’s father. It is intense, fiery, and highly offensive, placing enormous strain on the user’s body.

Dance (Enbu)
A powerful slash that traces an arc of fire, both beautiful and deadly.

Flame Dance
A high-damage technique consisting of rapid successive strikes.

Raging Sun
A two-bladed strike that slashes simultaneously from both sides.

Fire Wheel
A blazing attack launched from the air like a burning wheel.

Solar Heat Haze
A blade slash imbued with explosive heat.

Beneficent Radiance (Kikionkō)
A decisive finishing move Tanjiro uses during the Swordsmith Village Arc.

When using this style, a flame-like mark appears on Tanjiro’s forehead, signifying a massive surge in power at the cost of extreme physical stress.

◆ Special Abilities and Physical Traits
Enhanced Sense of Smell
Tanjiro possesses a remarkable sense of smell, allowing him to detect the “Opening Thread”—a precise moment of weakness in the enemy’s movement.

Hard Head
His headbutts are notoriously powerful, capable of knocking out opponents in a single blow.

Forehead Mark (Demon Slayer Mark)
The scar on his forehead evolves during battles, symbolizing a leap in combat ability and synchronization with Sun Breathing.

Crimson Blade (Kakutō)
In extreme conditions, Tanjiro’s Nichirin Blade glows red, a transformation that halts a demon’s regenerative abilities.

◆Relationships

● Family
Nezuko Kamado (younger sister):
Even after becoming a demon, Nezuko refrains from harming humans and travels with her brother. Their bond is a powerful symbol of sibling love.

Mother (Kie Kamado) and younger siblings:
Killed by demons in a tragic attack. Their deaths are the catalyst for Tanjiro’s journey and determination to fight.

● Mentors & Hashira (Pillars)
Giyu Tomioka (Water Hashira):
The first to acknowledge Tanjiro and Nezuko as unique. A pivotal figure in Tanjiro's path.

Sakonji Urokodaki:
Tanjiro’s mentor who trained him in Water Breathing and the fundamentals of swordsmanship.

Kyojuro Rengoku (Flame Hashira):
Earned Tanjiro’s deep respect after fighting together during the Mugen Train Arc. His final words are engraved in Tanjiro’s heart.

Tengen Uzui, Muichiro Tokito, Mitsuri Kanroji:
Hashira who fought alongside Tanjiro, building bonds of trust through battle.

● Peers & Companions
Zenitsu Agatsuma:
A cowardly but skilled Thunder Breathing swordsman. Becomes one of Tanjiro’s closest friends through their journey.

Inosuke Hashibira:
A wild child wearing a boar’s head. Though their relationship begins with conflict, they come to respect each other through combat.

Kanao Tsuyuri:
A quiet girl from the Butterfly Mansion. Moved by Tanjiro’s words, she gradually opens her heart and emotions.

● Demon Slayer Corps & Allies
Tamayo & Yushiro:
Demons who do not harm humans. They assist Tanjiro and Nezuko in their quest to reverse Nezuko’s transformation.

Kagaya Ubuyashiki:
Head of the Demon Slayer Corps. A key figure who places his trust in Tanjiro and welcomes him into the Corps.

◆ Official Character Popularity Poll Results

Multiple official polls have been held for Demon Slayer: Kimetsu no Yaiba, and Tanjiro has consistently ranked high as the main protagonist.

🔹 1st Popularity Poll (Weekly Shonen Jump, 2017)
Rank: 1st
Votes: 6,742
In the very first poll, Tanjiro claimed the top spot. Despite the story being in its early stages, his sincere, family-oriented personality and unwavering determination resonated with readers. Outranking fan-favorite characters like Nezuko, Zenitsu, and Giyu, he proved his presence as a true lead.

🔹 2nd Popularity Poll (2020)
Rank: 4th
Votes: 9,045
Held just before the final battle arc, Tanjiro placed 4th, behind Zenitsu (1st), Giyu (2nd), and Muichiro Tokito (3rd). The rise of strong supporting characters was noticeable, yet Tanjiro still secured a high number of votes close to 10,000.

As the readership broadened and new characters gained fans, Tanjiro remained a stable presence—praised for his balanced appeal as a protagonist.

💬 What Fans Love About Tanjiro
His loyalty and kindness toward friends
Deep bond with his sister Nezuko
The contrast between his tearful nature and inner strength
Memorable quotes and expressive reactions
His steady growth and unyielding resolve in battle

◆ Voice Actor: Natsuki Hanae

Tanjiro Kamado is voiced by Natsuki Hanae, one of Japan’s top young voice actors. Known for roles such as Ken Kaneki in Tokyo Ghoul and Kōsei Arima in Your Lie in April, Hanae has become a household name in anime.

His warm yet resolute voice perfectly captures Tanjiro’s compassion, rage, and determination. In particular, his emotional delivery of the iconic cry “NEZUKOOOO!!” became a fan-favorite moment across the anime community.

Other notable roles include:

Riddle Rosehearts in Disney: Twisted Wonderland

Vanitas in The Case Study of Vanitas

A passionate gamer, Hanae also runs a popular YouTube channel where he livestreams gameplay and interacts with fans. His friendly personality has led to widespread popularity, even earning him #1 in the “Most Entertaining Celebrities on YouTube (Teens’ Choice)” ranking.

Now a father of twins, Hanae continues to be adored both professionally and personally. His performance as Tanjiro is considered central to the series' success and beloved by a wide range of audiences.

When Will Be Released "Demon Slayer: Infinity Castle Arc"?

It is scheduled to premiere in Japanese theaters on Friday, July 18, 2025.
In North America (the United States and Canada), the theatrical release is planned for Friday, September 12, 2025. It will be shown in formats including IMAX and other premium screens, with Japanese audio and English subtitles, as well as an English dubbed version.

Please check for the latest updates regarding release and streaming information in other regions.

Teaser Movie 1: Demon Slayer Infinity Castle Arc

Teaser Movie 2: Demon Slayer Infinity Castle Arc

Source : DemonSlayer Official