Dr. Rachel Claudius

Dr. Rachel Claudius is the Vice Chief Supervisor of Fenrir Friar Branch Aragami Technology Department and one of the top brains in the whole of Fenrir. She is the founder of special forces Blood,the orphanage Magnolia Compass, and is part of the God Arc Soldier Research Project. She researches the Power of Blood. She adopted Julius Visconti after his parents' death and made him the first member of Blood.

Biography
The Claudius family is one of the rich elite families remaining in the post-apocalyptic world. When she was a child, Rachel was a quiet girl who rarely spoke. This silent behavior and and attachment to Leah's dolls angered Leah into pushing Rachel down their house stairs which disabled Rachel spine down and put her in a comatose state. In order to save Rachel's life,the sisters' father Jephthah Claudius used his Fenrir connections to inject P73 Bias Factor into Rachel's body after hearing about Soma Schicksal's case. This Bias Factor operation regenerated Rachel enough to revive her. She became more talkative after the operation's success, but her body was then similar to an Aragami's. After forgiving a begging Leah's apologies, Rachel gained Leah's promise that she would help Rachel for the rest of her life. At some point in her childhood, Rachel developed a goal to devour the entire world like the Nova apocalpyse. Years later, both the Claudius sisters have become scientists at Fenrir and conduct research to further research on God Arc Soldiers with their father's sponsorship. In God Arc Soldier research, Rachel used orphaned children for test subjects and earned her father's anger for not upholding the phrase "noblesse oblige" which he then claimed he would report her immoral crimes to Fenrir. Rachel then sent the prototype Number Zero God Machine Soldier to eliminate her father to prevent interference in her plans.

Rachel first found an orphaned Julius to have potential to use the Power of Blood and adopted him as her "cute doll." Romeo, Nana, and Ciel were also orphans who ended up living in the Magnolia Compass orphanage. After assembling all members of Blood, Rachel plotted Romeo's death by shutting down the God Arc Soldiers during red rain in order to deceive Julius into assisting her under the understanding that he would be helping her God Arc Soldier research to prevent people from risking their lives in battle against Aragami again. When Julius helps her performs a coup de'tat on the Friar, Rachel reveals her prototype God Arc Soldier and the deception she before knocking him unconscious for his growing transformation into a new Singularity that would devour the world. She then is confronted by the remaning members of Blood who have resolved to stop her plan from succeeding. Rachel brings out the prototype God Arc Soldier, the Number Zero God Machine Soldier and battles Blood with it. After getting defeated, Rachel  reveals Julius's transformation and lets her body be absorbed by the growing singularity Person Who Opens the World. She does not appear again after this. It is unknown if it she was driven by her own intentions or her Aragami side into carrying out her apocalypse plan to devour the world.

Character Relationships

 * Dr. Leah Claudius - Her older sister.
 * Julius Visconti - The child that she adopted and raised.

Trivia

 * She has a small scar on her face, possibly due to her staircase accident.
 * In the later parts of the main story, Rachel is revealed to address people around her as dolls to play with, revealing her child-like view of the world.