该片基于吾峠呼世所著漫画《鬼灭之刃》创作而成,是2019年播出的TV动画的续篇,讲述灶门炭治郎和炼狱杏寿郎与下弦之壹魇梦作战的故事。After his family was brutally murdered and his sister turned into a demon, Tanjiro Kamado's journey as a demon slayer began. Tanjiro and his comrades embark on a new mission aboard the Mugen Train, on track to despair.