While under the care of the Demon Slayer Corps leaders, Shinobu, Tanjiro, Zenitsu, Inosuke and Nezuko have recovered. They have even learned a new and powerful technique-Total Concentration! They'll need this new power and all their skill on their next demon-hunting mission aboard the mysterious Infinity Train as it takes them into the dreams of demons!

Tanjiro sets out on the path of the Demon Slayer to save his sister and avenge his family! In Taisho-era Japan, kindhearted Tanjiro Kamado makes a living selling charcoal. But his peaceful life is shattered when a demon slaughters his entire family. His little sister Nezuko is the only survivor, but she has been transformed into a demon herself! Tanjiro sets out on a dangerous journey to find a way to return his sister to normal and destroy the demon...

After a battle with a demon in a house with changing rooms, Tanjiro has a chance to find out about the fighter in the boar-head mask. Later, a new mission takes Tanjiro and his companions to Mt. Natagumo and confronts a mysterious and frightening threat.

Tanjiro sets out on the path of the Demon Slayer to save his sister and avenge his family! In Taisho-era Japan, Tanjiro Kamado is a kindhearted boy who makes a living selling charcoal. But his peaceful life is shattered when a demon slaughters his entire family. His little sister Nezuko is the only survivor, but she has been transformed into a demon herself! Tanjiro sets out on a dangerous journey to find a way to return his sister to normal and...