Nox is a Vampire from Jun Mochizuki'sThe Case Study of Vanitas. She works alongside her brother, Manet, under Count Parks Orlok ask his personal security. When Vanitas and Noé Archiviste came into public eye for their part in the incident aboard La Baleine with Amelia Ruth - Orlok immediately set a cover up into action and prepared Amelia for her execution. Vanitas and Noé then came to Galerie Valentine to retrieve their personal effects - only to be obstructed in regards to Amelia and The Book of Vanitas. While Nox and Manet were at Vanitas' throat for his insolence - Noé's concern was with Amelia, and so he insisted on striking a deal with Orlok in order to prove the validity of The Book of Vanitas. Together, Nox and Manet acted as shadows to Vanitas and Noé - witnessing the curing of Thomas Berneux. Before the two could apprehend Berneux however - they found him dead in the streets of Paris and hurriedly returned to Galerie Valentine to report the situation back to Orlok.