The Kamado siblings from the hit anime series Demon Slayer: Kimetsu no Yaiba, are ready to fight off any wandering Demons and the smell they leave behind, when you add this cherry blossom-scented air freshener to your car, office, and beyond! Demon Slayer: Kimetsu no Yaiba is a Japanese manga series written and illustrated by Koyoharu Gotoge. 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.