The movie is based on the immensely popular manga, which follows the young coal seller Tanjiro living in Japan in the early 1900s. After his family is massacred by demons and his sister, Nezuko, turned into one, he sets out on a quest to cure her, becoming a demon slayer in the process. The trailer also teases with brief moments featuring mysterious Mist Hashira Muichiro Tokito and bubbly Love Hashira Mitsuri Kanroji in action, who haven’t been seen since season one. Find more news and stories of interest from the book world in Breaking in Books.