Flames spread like a disease as the royal palace falls victim to murder driven by greed and betrayal. Forced to flee the catastrophe, two young survivors seek help from a courtesan of Yu Hyangru. To reclaim what has been lost, a plan is set in motion under the heroic guise of the Crimson Moon. However, as the mysteries of the past begin to resurface and dark secrets start to unravel, a cruel fate awaits every encounter.