Londoners consider dragons mere folklore, yet data reveals that 72% of deaths in the city result from these mythical creatures. Hidden from public sight, these grotesque beings roam freely. Conversely, in the parallel realm known as 'Reverse London,' these dragons are visible to the naked eye. Ninny Spangcole, a member of a renowned girl group, leads a double life as a 'Witch' at Wing Bind, an agency tasked with eliminating dragons to safeguard both Londons using magic. Alongside her partner Noel Niihashi, they protect Baldo Ywain Parks, a youth with a mysterious tie to the dragons. Wing Bind's vigilance has maintained peace for nearly a century until Baldo unwittingly triggers a Dark Dragon's rampage. Challenges escalate as Ninny's past bandmate resurfaces in Reverse London, accompanied by a formidable dragon, unsettling the witches further.