Demon Slayer: Kimetsu no Yaiba is a popular Japanese manga and anime series written and illustrated by Koyoharu Gotouge. The story is set in Taisho-era Japan and follows Tanjiro Kamado, a kind-hearted boy who becomes a demon slayer after his family is slaughtered by demons, and his sister Nezuko is turned into one. Determined to avenge his family and find a cure for his sister, Tanjiro joins the Demon Slayer Corps, facing powerful demons and discovering the dark secrets of their world. The series is known for its beautiful animation, emotional storytelling, and intense battles, quickly becoming a global phenomenon.