Demon Slayer: Kimetsu no Yaiba (Japanese: 鬼滅の刃, Hepburn: Kimetsu no Yaiba, lit. "Blade of Demon Destruction") is a Japanese manga series written and illustrated by Koyoharu Gotōge. It follows Tanjiro Kamado, a young boy who becomes a demon slayer after his family is slaughtered and his younger sister Nezuko is turned into a demon. The manga was serialized in Shueisha's Weekly Shōnen Jump from February 2016 to May 2020, and its chapters collected in 22 tankōbon volumes as of October 2020. It is published in English by Viz Media and simulpublished by Shueisha in English and Spanish 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: Infinity Train, premiered in October 2020.
As of October 2020, the manga had over 100 million copies in circulation, including digital versions, making it one of the best-selling manga series of all time. Meanwhile, the anime series has 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.