Eriko Kamata was born among the Class, an elite group that lives in a separate, utopian space above Lux. Unlike the people of Lux, the Class is wealthy, technologically advanced, and largely indifferent to the suffering below. However, Doc chose to descend into Lux, seeing it as the perfect environment to test and refine Texhnolyzation the cybernetic enhancement of the human body.

Fascinated by the potential for human-machine integration, she became one of the foremost experts in the field, conducting experiments without ethical hesitation. To her, Texhnolyzation is not a moral issue but a scientific breakthrough, and she sees herself as pushing humanity forward, whether they accept it or not.

After arriving in Lux, Doc quickly established herself as the leading scientist in cybernetic augmentation, collaborating with the Organo to continue her research. When Ichise was left mutilated and near death, she saw him as the ideal test subject, providing him with Texhnolyzed limbs that would redefine his existence. Though she saved his life, she did so primarily out of scientific curiosity rather than compassion.

Doc has a sharp and refined appearance, reflecting her intellect and status. She has dark brown hair, often pulled back, and wears glasses, giving her a cool and analytical look. Her fashion is more sophisticated compared to the average citizen of Lux, consisting of tailored coats and professional attire, making her stand out as someone from outside the city’s chaos.

Her calm and composed expression rarely changes, emphasizing her detached and methodical nature. While others in Lux bear visible signs of hardship and struggle, Doc remains poised and unaffected, reinforcing her role as an observer and scientist rather than an active participant in the city’s decay.

Doc is highly intelligent, ambitious, and emotionally detached, viewing Texhnolyzation as a necessary step in human evolution rather than a moral dilemma. She is calm, methodical, and rarely driven by sentiment, prioritizing logic and scientific progress over emotional connections. She often interacts with others, particularly Ichise, in a cold and clinical manner, seeing them more as subjects for experimentation than as individuals with personal struggles.

However, beneath her stoic and analytical exterior, there are subtle hints of frustration and weariness, suggesting that she is not entirely indifferent to the world around her. Unlike most of the Class, Doc does not seek to abandon Lux or watch from afar she actively engages with it, believing that her research could ultimately determine the city’s future. Though she may not express traditional empathy, her actions suggest that she believes Texhnolyzation is not just an experiment, but a means of survival in a decaying world.

While her motivations are largely scientific, she is not completely heartless. Her trust in Keigo Oonishi suggests that she values stability in Lux, and her involvement with Ichise hints at a lingering sense of responsibility, even if she would never openly admit it.

• The Scientist of Texhnolyzation
  Doc arrives in Lux with the goal of perfecting Texhnolyzation, seeing the city’s inhabitants as potential test subjects. Unlike other researchers, who remain hidden within the Class, she chooses to work directly with Lux’s underworld, forming a working relationship with the Organo to facilitate her experiments.

• Transforming Ichise
  When Ichise is left on the verge of death, Doc sees an opportunity rather than a tragedy. She gives him Texhnolyzed limbs, not out of pity or kindness, but to test the limits of her work. Though she saves his life, she expects nothing in return, treating him as a subject rather than a person. However, as Ichise adapts to his new body, her relationship with him becomes more complex, as she begins to recognize his raw will to survive.

• Her Relationship with the Organo and Oonishi
  While many in Lux distrust outsiders, Doc earns the respect of Keigo Oonishi, the head of the Organo. He values her intelligence and scientific expertise, seeing her as a reliable ally in an unstable world. Unlike other members of the Class, who view Lux with detachment, Doc’s willingness to work with the city’s factions makes her a rare bridge between the elite and the suffering masses.

  Witnessing the Fall of Lux
  As Lux descends into chaos and destruction, Doc is forced to confront the limits of her work. While she once believed Texhnolyzation was the key to progress, she begins to question whether her advancements truly help people or merely turn them into something less human. Her role in the city’s final days serves as a reflection of science’s struggle between innovation and ethical responsibility.