Tanjiro finds his family slaughtered by a demon. His younger sister, Nezuko has been transformed into a demon herself. Tanjiro becomes a "demon slayer" so that he can turn his sister back into a human, and kill the demon that massacred his familiy. A sorrowful tale of siblings in which the fates of humans and demons interwine begins now! ©Koyoharu Gotoge / SHUEISHA, Aniplex, ufotable