Demon Slayer: Kimetsu no Yaiba (鬼滅の刃, Kimetsu no Yaiba, lit. "Blade of Demon Destruction") is a Japanese manga series written and illustrated by Koyoharu Gotouge. It follows teenage Tanjiro Kamado, who strives to become a demon slayer after his family is slaughtered and his younger sister Nezuko is turned into a demon. It was serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump from February 2016 to May 2020, with its chapters collected in 23 tankōbon volumes. It has been published in English by Viz Media and simulpublished by Shueisha on their Manga Plus platform.
A 26-episode anime television series adaptation produced by Ufotable aired in Japan from April to September 2019. A sequel film, Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train, was released in October 2020 and became the highest-grossing anime film and Japanese film of all time. A second season will premiere in late 2021.
As of February 2021, the manga had over 150 million copies in circulation, including digital versions, making it the tenth best-selling manga series of all time. Meanwhile, the anime series have received critical acclaim, with critics praising the animation and fight sequences. It has received numerous awards and is considered one of the best anime of the 2010s. As of December 2020, the Demon Slayer franchise is estimated to have generated total sales of at least ¥270 billion ($2.6 billion) in Japan.