Demon Slayer: Kimetsu no Yaiba is a Japanese manga series written and illustrated by Koyoharu Gotouge. 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 simultaneously on the Manga Plus platform by Shueisha. It follows teenage Tanjiro Kamado, who strives to become a Demon Slayer after his family was slaughtered and his younger sister, Nezuko, is turned into a demon.

Tanjiro Kamado is a fictional character and the protagonist of Koyoharu Gotouge's manga Demon Slayer: Kimetsu no Yaiba. Tanjiro goes on a quest to restore the humanity of his sister, Nezuko, who was turned into a demon after his family was killed by Muzan Kibutsuji following an attack that resulted in the death of his other relatives. After an encounter with Giyu Tomioka, a demon slayer, Tanjiro is recruited by Giyu to also become a demon slayer to help his sister turn human again and avenge his family. Besides Ufotable's Demon Slayer: Kimetsu no Yaiba anime adaptation, Tanjiro has also appeared in a light novel that acts as a prequel to the manga.