Adaptation of the Hashira Training Arc. 
 
The Hashira, the Demon Slayer Corps' highest ranking swordsmen and members. The Hashira Training has begun in order to face the forthcoming battle against Muzan Kibutsuji. Each with their own thoughts and hopes held in their hearts, a new story for Tanjiro and the Hashira begins. 
(Source: Aniplex USA) 
Note: The first episode received an early premiere in cinemas as part of a special screening alongside the final episode of Kimetsu no Yaiba: Katanakaji no Sato-hen.

Adaptation of the Swordsmith Village Arc. 
 
Tanjiro’s journey leads him to the Swordsmith Village, where he reunites with two Hashira, members of the Demon Slayer Corps’ highest-ranking swordsmen - Mist Hashira Muichiro Tokito and Love Hashira Mitsuri Kanroji. With the shadows of demons lurking near, a new battle begins for Tanjiro and his comrades.
 
Notes: 
• The first episode has a runtime of ~49 minutes, and received an early premiere in cinemas worldwide as part of a special screening alongside the final two episodes of Kimetsu no Yaiba: Yuukaku-hen. 
• The final episode has a runtime of ~52 minutes.

The setting is Taisho era Japan. Tanjirou is a kindhearted young boy who lived peacefully with his family as a coal seller. Their normal life changes completely when his family is slaughtered by demons. The only other survivor, Tanjirou's younger sister Nezuko, has become a ferocious demon. In order to return Nezuko to normal and get revenge on the demon that killed their family, the two of them depart on a journey. From a young talent, an adventure tale of blood and swords begins!
 
(Source: Shonen Jump)
 
Notes: 
- Includes two extra chapters. 
- Nominated to the 24th and 25th Annual Tezuka Osamu Cultural Prize.

Part 1 of the theatrical trilogy adaptation of the Infinity Castle Arc.
 
Tanjiro Kamado – a boy who joined an organization dedicated to hunting down demons called the Demon Slayer Corps after his younger sister Nezuko was turned into a demon.
 
While growing stronger and deepening his friendships and bonds with fellow corps members, Tanjiro has battled many demons with his comrades – Zenitsu Agatsuma and Inosuke Hashibira. Along the way, his journey has led him to fight alongside the Demon Slayer Corps’ highest-ranking swordsmen, the Hashira, including Flame Hashira Kyojuro Rengoku aboard the Mugen Train, Sound Hashira Tengen Uzui within the Entertainment District, as well as Mist Hashira Muichiro Tokito and Love Hashira Mitsuri Kanroji at the Swordsmith Village.
 
As the Demon Slayer Corps members and Hashira engaged in a group strength training program, the Hashira Training, in preparation for the forthcoming battle against the demons, Muzan Kibutsuji appears at the Ubuyashiki Mansion. With the head of the Demon Corps in danger, Tanjiro and the Hashira rush to the headquarters but are plunged into a deep descent to a mysterious space by the hands of Muzan Kibutsuji.
 
The destination of where Tanjiro and Demon Slayer Corps have fallen is the demons’ stronghold – the Infinity Castle. And so, the battleground is set as the final battle between the Demon Slayer Corps and the demons ignites.
 
(Source: Crunchyroll)

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