Vanitas and Noé are in a bind until an invitation arrives. At their benefactor's, they find they must prove the "Book of Vanitas" can restore a vampire's true name. They try to secure the necessary proof, only to encounter someone else after the book.

The battle between Vanitas and the Hellfire Witch takes an unexpected turn. Vanitas and Noé return to Count Orlok to learn their fate along with Amelia's. Noé digs deeper into the cause of Amelia's name corruption and goes on a journey with an old friend.

The Teacher explains the World Formula theory. Vanitas is put off by Noé and Dominique's relationship. Dominique rakes Vanitas over the coals. Vanitas encounters Jeanne again and reveals himself to the ball guests. Chaos ensues when gate crashers arrive.

Noé's encounter with Charlatan triggers a childhood flashback. His earliest days are revealed, along with Louis' dark secret. Noé grows up surrounded by friends, but an attempt to save one of their inner circle has tragic consequences.

Vanitas comes to the rescue and helps Noé and company battle Charlatan's curse-bearers. Noé questions Vanitas's methods. Some unexpected help arrives when they face another threat. Noé confronts Vanitas, but will it bring them together or tear them apart?

Dominique offers Jeanne advice. Jeanne surprises Vanitas with an invitation, and Dominique shadows them. Noé encounters Lord Ruthven, but after their previous meeting, he doesn't know what to expect. Jeanne keeps her promise, and Vanitas makes one to her.

Vanitas and Jeanne spend a steamy yet awkward night together. Tempers flare when Vanitas learns Dante withheld information. Though they all know they're at cross-purposes, they set out to find Noé. Meanwhile, Noé wakes to find himself in the Beast's lair.

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?

Noé springs into action after he receives a disturbing letter. Details about Domi and Louis' past, as well as Mikhail's past, come to light. Vanitas is alarmed to hear of Mikhail's return. Noé confronts Mikhail but is forced to do as he asks.

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.

Mikhail pleads with Vanitas to join him. Dominque comes to terms with her inner self. Mikhail unleashes terror on his foes, but the book exacts a toll. An unexpected figure appears amid the ruins. Vanitas mends fences with Noé and parts ways with Mikhail.