Major League Baseball enters the world of Demon Slayer for the Tokyo Series. 
As MLB celebrates games in Japan, baseball has partnered to release a Demon Slayer short film that depicts the evolution of Japanese baseball through the continuous passing of the torch across generations. 
(Source: MLB Official Facebook)

The All-Out War Begins.

 
Theatrical trilogy adaptation of the Infinity Castle Arc.

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.

A long-term collaboration project with studio ufotable for the video game Genshin Impact. Let's step into this vast magical world of adventure together!

These specials were originally shown at the Kimetsu no Utage live event which was held on October 20th 2019 in Tokyo with the voice actors live-dubbing their dialogue. Later properly dubbed and released on the Kimetsu no Yaiba DVD & Blu-ray. 
 
Note: Related to the post-credit shorts after episodes 14, 17 on the TV broadcast of Kimetsu no Yaiba.

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.

Near the end of the Showa era in the late 1980s, in Misaki town, an old mansion is rumored to be the home of a witch. After moving into the mansion, Aoko Aozaki begins to learn sorcery from a young mage, Alice Kuonji, the rumored witch of the mansion. The Aozaki family oversees the land on which Misaki is built and the heir (Aoko) is tasked with protecting it. 
 
Mysterious intruders have been disrupting the bounded field in Misaki, leading Alice and Aoko to investigate. A mannequin or puppet attacks them and is incinerated. As this happens, both of them spot someone running away, a civilian who must not get away having seen magic alive. 
 
Unexpectedly, a young boy named Soujuurou Shizuki is drawn to the mansion and comes to reside with them as well.

After visiting the Rengoku residence, Tanjirou and his comrades volunteer for a mission within the Entertainment District, a place where desires are sold and demons dwell. They journey alongside the flashy Sound Hashira, Tengen Uzui, in search of a monstrous foe terrorizing the town. Sworn to slay creatures of the night, the hunt continues.
 
(Source: Funimation)
 
Note: 
- The first episode aired with a runtime of ~47 minutes. 
- The last episode aired with a runtime of ~33 minutes.

In Demon Slayer: Kimetsu no Yaiba Mugen Train Arc, Tanjiro Kamado and his fellow Demon Slayer members embark on a mission aboard the Infinity Train. Their new mission is to investigate a series of mysterious disappearances, carried out by a demon that has been terrorizing passengers and killing the demon slayers who oppose it.
 
Note: The first episode is entirely anime original. Episodes 2-7 are a re-edited version of the movie featuring new scenes and music.

Valentine's Day special for Kimetsu no Yaiba. The first three episodes will be released on Aniplex's official YouTube channel, while the fourth and final episode was streamed during the Kimetsu Matsuri Online: Anime 2nd Anniversary Festival and also available on Aniplex's channel after airing. 
Note: Related to the post-credit shorts after episodes 14, 17 on the TV broadcast of Kimetsu no Yaiba.

The official music video for ZOOL's song Bang!Bang!Bang!. The song was originally released as part of the 2019 BLACK OR WHITE special video.

This Demon Slayer movie sees Tanjiro Kamado and friends from the Demon Slayer corps board the Infinity Train on a new mission to investigate a mysterious series of disappearances, perpetrated by a demon who has been tormenting people and killing the demon slayers who oppose it.

An animated music video included as a bonus on the Blu-ray/DVD release of Majokko Shimai no Yoyo to Nene.

It is the Taisho Period in Japan. Tanjiro, a kindhearted boy who sells charcoal for a living, finds his family slaughtered by a demon. To make matters worse, his younger sister Nezuko, the sole survivor, has been transformed into a demon herself. Though devastated by this grim reality, Tanjiro resolves to become a “demon slayer” so that he can turn his sister back into a human, and kill the demon that massacred his family. 
 
(Source: Crunchyroll)