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A Japanese-style sword fighting tale set in Japan's Taisho period, depicting a young boy fighting demons in order to turn his younger sister, who has turned into a demon, back into a human.

In 2019, it was made into a TV anime produced by ufotable, and the first season, ``Kamado Tanjiro Risshihen,'' which depicts the prologue of the story, was broadcast.

In 2020, the theatrical animation ``Mugen Train'' depicting the middle part of the story was released. The film's box office revenue in Japan reached 40.43 billion yen, making it the highest grossing film in Japan's history. From October 2021 to February 2022, a re-edited version of ``Mugen Train'' and its sequel ``Yukaku'' were broadcast as the second season of the TV anime. Furthermore, it has been decided that ``Swordsmith's Village'' will be made into a TV anime.

In addition, a diverse media mix is ​​being developed, including stage adaptations, games, toys, and collaborations with companies and theme parks.