Augusta Vradica (Seth Nightroad)
Voiced by: Yuki Matsuoka (Japanese), Hilary Haag (English)
Augusta Vradica is the Empress of the New Human Empire. Styled "Augusta Vradica, the First and Only", Her real name is Seth Nightroad. She is the youngest of the siblings, and the third Crusnik. A member of the Alliance Aerospace Navy, Seth viewed Lilith as a mother figure and holds Abel in great sisterly affection. When Cain was fatally wounded in an accident, she injected him with 100% Crusnik, restoring his life, but changing him for the worse. After he killed Lilith during the war, Seth joined Abel in confronting him and was the one directly responsible for shooting him out of an airlock. As a child, she seemed to have an aversion to Cain for some reason, taking Abel's side during an unexplained argument of theirs and going so far as to shrink somewhat into Lilith in fear when Cain later appeared.
Among the four Crusnik siblings, she has spent the most time with Methuselah, but unlike Abel, she does feed on them. Around 800 years ago, Augusta Vradica led the Methuselah to the lands where the Empire would eventually stand, to save them from persecution. She helped restore nature back to the lands, returning them to their former glory before the Armageddon. She then became the Empress of the New Human Empire, ruling over her kingdom as the heart of the Empire itself. As the Empress, Seth is seen as a mother by her people, and treats her subjects as she would her own children. However, most of her courtiers and servants have never seen her before in all the centuries that they have served her, mainly due to the heavy veils she wears to cover her appearance as well as the use of a voice modifier. Though she does age, she still appears as a little girl, but is well over nine hundred years old. It is implied that she does not wish to declare war on the Vatican territories due to her Abel's desire for peace; sideways comments by her have indicated that she has very little faith that a lasting peace is possible. As his sister, she knows Abel very well, and has commented that he is quite popular with the girls for some unknown reason. Her appearance differs between the manga and anime; she looks like a girl of eight or nine years old in the anime, and in the manga she claims to be 13 while in disguise and looks somewhat older that that. In both versions she has green eyes, short black hair, and is very small in stature.
During a plot to overthrow her, Seth disguised herself as a tea-seller and a medical student in the human district of the capital city, Byzantium. During that time, she met Ion Fortuna and Sister Esther Blanchett, though neither knew who she was. She later alerted Abel and Asthe when Ion and Esther were in danger, and saved Esther from one of Dietrich's puppets.
When her Crusnik powers are activated at 40%, Seth's eyes turn red, her lips turn greenish-blue, her voice becomes deeper, and a pair of giant tuning forks made of blood materialize in each of her hands. At what was presumably a tell-tale 80% activation, fairy-styled wings grow from her back in addition to her other traits. In this state, she can almost instantly disintegrate her enemies, turning them into a salt-like substance. Her power is be based on a manipulation of ultrasonic sound waves which she calls "The Fire of Sound". She has been shown to have a fondness for random odd jobs; the first time Süleyman saw her she was selling flowers, Esther and Ion meet her as a tea seller, and in one of the omakes Abel runs into her several times doing different jobs including bagging groceries, selling tissues, and working as a waitress. Also, she likes the color green so much that, as the Empress, it is the "Imperial" color and only objects associated with her may display it prominently. In the manga, she also owns a small white squirrel named Abel which is seen accompanying her almost everywhere.
During the events of the Trinity Blood Canon Summa Theologica light novel, Seth was compelled to reactivate the massive spaceship Ark when a nuclear attack ordered by Pope Francesco destroyed the Empire's second largest city. From the capital Byzantium, She attempts to destroy the Vatican's nuclear launch facility using the Ark's powerful satellite cannon. As soon as this system is activated, however, Cain and Dietrich appear and take control of the Ark. Abel also arrives and becomes involved with the confrontation between Seth and Cain. Cain reveals that he seeks to crash the Ark onto the Earth. Seth thwarted this plan by sacrificing herself, and when her strength was spent, Cain killed her and severed her head. After the incident, the Rosenkreuz Orden twists the information and Abel is framed for the murder of Empress Augusta Vradica. This leads the Empire to start an all-out war with the Terrans.
Read more about this topic: List Of Trinity Blood Characters, The New Human Empire