Demon Slayer: Kimetsu no Yaiba is set in a world during Japan's Taishō era where humanity lives every night and has waged a war in centuries against demons who possess supernatural abilities such as enhanced strength, rapid regeneration, and unique powers referred to as "Blood Demon Arts". The story 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.