Julia Silverstein

Julia Silverstein is a medical doctor working for the Red Shield.

Plot
Julia is first seen in the series acting as Saya's doctor and supervising Saya's blood transfusions.

Julia is committed to researching the true nature of chiropterans to help destroy them. Her supervisor and mentor, Dr. Collins, defects to Cinq Flèches wanting to be able to publish his research and because he disagrees with the idea of killing chiropterans. He is able to convince Julia to join him and betray the Red Shield. She meets with David several times while he is investigating Cinq Flèches and the Corpse Corps, and he always reminds her that she will be welcome back to the Red Shield when she is ready.

When Diva becomes pregnant after raping Riku, Julia becomes her personal physician. This sends Collins into a jealous fit and he attempts to murder her, but David saves her and is shot instead.

Afterwards, Julia keeps vigil over the critically wounded David in the hospital and is shown kissing him while he sleeps. She also returns to the Red Shield and is able to use the knowledge she gained to aid them in the final battle with Diva.

After Diva is killed and the group returns to Okinawa, Julia is able to use the knowledge she gained to extend the Schiff Lulu's life span and develop a serum from Saya's blood that can stop the effects of the Delta 67 agent. She also is revealed to be pregnant with David's child.