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.

Episode 1 - Cruelty

Episode 2 - Trainer Sakonji Urokodaki

Episode 3 - Sabito and Makomo

Episode 4 - Final Selection

Episode 5 - My Own Steel

Episode 6 - Swordsman Accompanying a Demon

Episode 7 - Muzan Kibutsuji

Episode 8 - The Smell of Enchanting Blood

Episode 9 - Temari Demon and Arrow Demon

Episode 10 - Together Forever

Episode 11 - Tsuzumi Mansion

Episode 12 - The Boar Bares Its Fangs, Zenitsu Sleeps

Episode 13 - Something More Important Than Life

Episode 14 - The House with the Wisteria Family Crest

Episode 15 - Mount Natagumo

Episode 16 - Letting Someone Else Go First

Episode 17 - You Must Master a Single Thing

Episode 18 - A Forged Bond

Episode 19 - Hinokami

Episode 20 - Pretend Family

Episode 21 - Against Corps Rules

Episode 22 - Master of the Mansion

Episode 23 - Hashira Meeting

Episode 24 - Rehabilitation Training

Episode 25 - Tsuguko, Kanao Tsuyuri

Episode 26 - New Mission

ufotable

Aniplex

Shueisha

Demon Slayer: Kimetsu no Yaiba Hashira Training Arc