Ninny Spangcole, leader of the popular girl group Cecile Die Twice, isn't content with just a successful music career. Along with her partner Noel "Niiha" Niihashi, she delves into the secretive underworld of Reverse London, where they work as "Witches" for the Wing Bind organization, dedicated to managing dragons. These powerful creatures caused a significant number of casualties in the city prior to Reverse London's separation from Front London. Due to the fact that dragons are invisible to most Front London residents, their existence became a myth, and Reverse Londoners took on the responsibility of protecting their city. Wing Bind was formed to prevent unauthorized individuals from coming into contact with dragons.
Ninny and Noel face difficulties as they are tasked with taking care of Balgo Ywain Parks and his mischievous pup Osushi-chan. The girls must handle the consequences of their actions. However, when Macy Baljure, Ninny's former bandmate, arrives in Reverse London with a dragon by her side, things become even more complicated.