Tanjiro, Nezuko, Zenitsu and Inosuke join Rengoku on the Mugen Train. Having heard that there may be demons on the train, they are on high alert, but they find themselves falling into a slumber. Within his dream, Tanjiro is reunited with his long lost family. However, it is soon revealed that this is a trap set by Enmu (Lower One).
If what happens in this dream
has an effect on reality, too...
Si lo que sucede en el sueño afecta
a la realidad, no habrá vuelta atrás.
Si lo que sucede en el sueño afecta
a la realidad, no habrá vuelta atrás.
Caso os acontecimentos dentro do sonho 
tenham efeitos na realidade, já era…