Mugen Train

A steam-powered nightmare where sleep means death and only the waking can survive.

The Mugen Train is a steam locomotive that serves as the primary setting for the "Mugen Train" arc of the manga series Demon Slayer: Kimetsu no Yaiba by Koyoharu Gotouge. In the film Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train, Tanjiro Kamado, his demon sister Nezuko, and his friends Zenitsu Agatsuma and Inosuke Hashibira board the Mugen Train to assist Flame Hashira Kyojuro Rengoku in finding a demon onboard. The train becomes the hunting ground of Enmu, Lower Rank One of Muzan's Twelve Kizuki, who uses his Blood Demon Art to put all passengers into a deep sleep, trapping them in idealistic dreams while he prepares to devour them. The film was released in Japan on October 16, 2020, and grossed over $512.7 million worldwide, becoming the highest-grossing film of 2020 and the highest-grossing Japanese film worldwide at the time.

Last updated 2026-09-30 from the source article.

Quick Facts

Primary antagonist

Enmu (Lower Rank One)

Key protagonists

Kyojuro Rengoku
Tanjiro Kamado
Nezuko Kamado
Zenitsu Agatsuma
Inosuke Hashib

Affiliation

Demon Slayer Corps; Twelve Kizuki

Facts from the source article.

Background

The Mugen Train is a passenger train that becomes fused with Enmu, Lower Rank One of Muzan's Twelve Kizuki, after he uses his Blood Demon Art to put all onboard into a deep sleep. Enmu instructs four insomniac passengers to enter the dreams of the Demon Slayers and destroy their spiritual cores, in exchange for a peaceful sleep. The Demon Slayers have idealistic dreams: Tanjiro reunites with his deceased family, Kyojuro reminisces on his past with his brother and father, Zenitsu envisions a life with Nezuko, and Inosuke imagines himself as a leader.

The intruders fail to destroy their cores, and Tanjiro, aided by the unaffected Nezuko, realizes he is dreaming and wakes up when a vision of his father instructs him to commit suicide. Nezuko uses her pyrokinetic Blood Demon Art to sever the intruders' connection to the others. After Tanjiro confronts and beheads Enmu, he is revealed to have fused with the train and prepares to devour the passengers. Kyojuro instructs Inosuke and Tanjiro to cut Enmu's neck as he, Nezuko, and Zenitsu protect the passengers.

They find it in the locomotive but are attacked by its defenses, including a Blood Demon Art that puts them to sleep. The conductor, under Enmu's control, stabs Tanjiro in his stomach. With his mask making him immune to Enmu's attacks, Inosuke exposes his vertebra, and Tanjiro slashes it with his newfound Hinokami Kagura, killing Enmu and derailing the train.

Did You Know?

The film was released during the COVID-19 pandemic, premiering in Japan on October 16, 2020, and grossed over $512.7 million worldwide, making it the highest-grossing film of 2020.
It was the first time ever that a non-American production topped the annual global box office.
The film was the first Japanese film to surpass the half-billion dollar mark.
The film set the record for the highest-grossing IMAX release in Japan.
The film became the first film to top the Japanese box office charts for ten consecutive weekends since the charts began publication in 2004.