《Demon Slayer: Kimetsu no Yaiba Mugen Train》Still pictures from the fourth episode

A group - Demon Slayer: Mugen Train - Episode 4 stills and pictures are shared with everyone. Tanjiro realizes that he is in a dream, and realizes that if he wants to wake up from the dream, he must kill himself in the dream..On the other side, several children who were ordered by Nightmare to sneak into Tanjiro's subconscious realm and destroy their spiritual core have not yet achieved their goals, so they are restless.