Demon Slayer: Kimetsu no Yaiba is based on the manga series by Koyoharu Gotoge published under SHUEISHA's JUMP COMICS,
which consists of 23 volumes and over 150 million copies in publication.
The story begins when Tanjiro Kamado, a boy whose family is killed by a demon, joins the Demon Slayer Corps to turn his younger sister Nezuko back into a human after she is transformed into a demon.