Jeanne says something that strikes fear into Vanitas. Lord Ruthven makes Noé swear an oath. Olivier is at his wits' end over Roland's obsession. Noé has a consuming thirst. Vanitas hears a certain monster has returned and sets out with Noé to investigate.

Chloé reveals why she wants to kill Naenia. After Naenia's true nature is revealed and Chloé's malnomen is triggered, Vanitas and Noé scramble to save Gévaudan with some unexpected help. A Church cover-up comes to light along with Jeanne's dark past.

Vanitas tries to convince Jeanne not to slay Chloé. The cause of Astolfo's hatred is laid bare. Jean-Jacques finally learns Chloé's end game and tries to stop her. Vanitas activates the Alteration engine to save Chloé and Gévaudan, but is it too late?

As Noé sucks Mikhail's blood, he gets a glimpse of the latter's past with Vanitas. Details emerge about Vanitas's parents, his history with the Vampire of the Blue Moon, and the experiments he endured. Mikhail is delighted when Vanitas comes to save Noé.