Namikaze Haku is a 19 year old girl visiting her grandfather in Japan when she suddenly ends up transported into the world of Kimetsu no Yaiba. She quickly decides to pursue becoming a demon slayer and to use her knowledge from the reading the manga to change things in this world and help defeat Muzan Kibutsuji, or at least she hopes so. But what other secrets does she unknowingly carry in regards to Muzan's desires blue spider lily? Why do demons and humans alike find themselves drawn to her?
12 parts