Drawn by tales of hidden riches, Cid Kagenou eagerly follows his sister Claire on a journey to the notorious Lawless City. The land is governed by three rulers: Yukime, the Spirit Fox; Juggernaut, the Tyrant; and Elisabeth, a dormant progenitor vampire called the Blood Queen. Capturing Elisabeth offers Claire the chance to showcase her true strength, while Cid pursues other aims—evading Claire"s notice, amassing treasure, and orchestrating Shadow"s dramatic arrival at just the right instant.
With Elisabeth"s rebirth imminent, her lieutenant Crimson orchestrates a deceitful scheme that throws the town into chaos. While hunting for her vanished brother, Claire encounters an unlikely partner in Mary, a seasoned vampire hunter; together they rush to the Crimson Tower, Elisabeth"s stronghold. At the same time, Beta and a handful of Shadow Garden operatives arrive in Lawless City. As these pivotal figures gather at the Crimson Tower, a monumental showdown under the crimson moon looms.