Kal'tsit

Biodata

Feature	Value
Name	Kal'tsit (凯尔希)
Alias(es)	Doctor Kal'tsit; AMa-10 247
Gender	Female
Affiliation	Rhodes Island
Occupation/Role	Head of the Medical Department; one of Rhodes Island's highest administrators 27
Status	Active 597
First Appearance	Chapter 28

Background / History

Kal'tsit has lived through major conflicts predating Rhodes Island's current era. Two hundred years before the Londinium crisis, she led an allied force that destroyed Kazdel in order to stop a Sarkaz conspiracy; she was killed during that campaign and later reborn. She subsequently became a close friend of Theresia. 412 559

She previously served as the director of an Ursus research institute connected to the Stone Coffin. Returning to its core mechanism later leaves her visibly affected, and she reflects on mistakes made during that period. 171

By the time Bai Ye meets her, Kal'tsit is Rhodes Island's Medical Department head and a senior administrator. Her experience includes work and scholarship across Laterano, Columbia, and Ursus, as well as firsthand knowledge of unethical human experimentation. 27 29

Appearance

Kal'tsit has a youthful-looking face despite carrying herself with the gravity and reassurance of an elder. She has short white hair, fair skin, and striking emerald-green eyes. 28

• Wears a white medical coat with a transparent outer layer. 85
• Leaves black Originium crystals on her shoulders visible rather than concealing them. 28 85
• Is an Infected; her Originium fusion rate and crystal density are distinct from Bai Ye's zero-Originium test results, but her own infection is visually apparent. 28 228

Personality

Kal'tsit is controlled, observant, and difficult to unsettle. Even when faced with violence, hidden agendas, or dangerous unknowns, she tends to respond through measured questioning and practical decisions rather than panic. 28 150 164

She is highly protective of Rhodes Island's personnel, particularly people vulnerable to exploitation or burdened by powers they cannot safely bear. Her caution can make her withholding and severe: she refuses to disclose certain truths to Bai Ye because she believes they are not yet his burden, and she repeatedly warns him against endangering Rhodes Island's neutrality. 29 115 228

Despite her reserved manner, Kal'tsit is capable of tenderness, amusement, and personal attachment. She intervenes to protect Bai Ye from Warfarin's uncontrolled examination, shows pity and anger over Specter's condition, and admits that her willingness to share secrets with Bai Ye reflects growing trust. 33 152 171

Abilities & Skills

Medical Expertise

As Rhodes Island's Medical Department head, Kal'tsit is an experienced physician, researcher, and surgical coordinator.

• Identifies Patriot's infection and notices the condition affecting his speech from his pronunciation and throat. 112
• Oversees the awakening procedure and emergency surgery preparation for the Doctor after the Stone Coffin is opened. 171
• Examines Gladiia after her collapse, identifying dehydration and signs of abnormal physical adaptation. 307
• Conducts and directs research involving unusual blood samples, including Misha's blood and Bai Ye's physiology. 61 293
• Provides Bai Ye with advanced medical reference material sufficient to substantially advance his medical training. 293

Mon3tr

Mon3tr is Kal'tsit's summon and her principal combat asset. Rather than being stored separately, it can emerge from and return to her spine. 150

• Guards Kal'tsit and nearby allies during combat. 166
• Can be summoned rapidly in confined or unexpected situations. 150
• Possesses enough physical force to tear open wire mesh for a medical team entering the Stone Coffin. 171
• Was prepared alongside medical supplies during the operation against Koschei. 166

Strategic Knowledge and Planning

Kal'tsit combines extensive historical knowledge with institutional authority and careful operational planning.

• Uses information advantages and deep knowledge of Terra's peoples, history, and hidden crises to control negotiations. 306 433
• Processes and summarizes information while listening, organizing Bai Ye's account of Ishar-mla before he finishes speaking. 293
• Uses PRTS simulations and consultations with Rhodes Island departments to prepare operations, including the Londinium response. 556
• Explains Sarkaz prophecy as deduction from collective memories preserved through Originium rather than literal supernatural foreknowledge. 433

Relationships

• Bai Ye — Initially regards him as a potentially catastrophic unknown and seeks to keep him from exploitation; their relationship develops into candid cooperation and mutual trust. 29 115 171 559
• Mon3tr — Her summon and primary protector in dangerous situations. 150 166
• Amiya — Kal'tsit acts as Amiya's guardian, concealing and managing the burden of her sealed Demon King power. 170 183
• The Doctor — Holds anger and hatred toward the Doctor's past self, yet remains committed to protecting her after her amnesiac awakening. 170 171
• Warfarin — Fellow Medical Department physician; Kal'tsit restrains Warfarin when her interest in Bai Ye's blood crosses boundaries. 29 33 339
• Patriot (Bokkas) — An old acquaintance from a long-past era; their reunion reveals enduring mutual recognition and trust. 111 113
• Skadi and Specter — Protects their autonomy from invasive testing and treats Specter as her patient after learning of the Seaborn Church's experimentation. 152
• Theresia — A close friend after Kal'tsit's rebirth following the destruction of Kazdel. 412

Story Role / Major Arcs

Bai Ye's Recruitment

Kal'tsit first meets Bai Ye after PRTS detects his anomalous data. She immediately recognizes that his power is unrelated to conventional Originium Arts and investigates whether he is connected to Great Beasts. 28

She permits Bai Ye to cooperate with Rhodes Island and eventually appoints him to lead field operations, while maintaining close scrutiny of his motives and expanding influence. 29 61 115

Ursus and the Stone Coffin

Kal'tsit reunites with Patriot, addresses the truth behind Lyudmila's belief that she betrayed her father, and negotiates with Bai Ye after he discovers the Doctor within Chernobog's Stone Coffin. 112 117 164

She leads the procedure to awaken the Doctor, confronting her own unresolved anger while reaffirming her duty to protect both the Doctor and Amiya. 171

Iberia and the Abyssal Hunters

While investigating Iberian marine anomalies, Kal'tsit locates the church laboratory tied to Specter's condition and works with Bai Ye and Skadi to evacuate and treat her. 150 152

She continues researching the Abyssal threat, including Bai Ye's cooperation with Ishar-mla and the possibility of using medical research to control Reapers. 293 303 307

Entrusting Rhodes Island to Bai Ye

Kal'tsit reveals that Bai Ye holds unexpectedly high Rhodes Island authority and suggests that he is being prepared for a greater responsibility. 317 337

When she is absent, she transfers her authority to him and leaves him to act as Rhodes Island's temporary head, including overseeing security, medical administration, external operations, and research coordination. 338 339

Victoria and Londinium

Kal'tsit helps organize the Londinium operation, seconding elite operators and preparing Rhodes Island's response through PRTS simulations. She recognizes that Bai Ye is an ally rather than a subordinate and plans around his independent objectives. 520 556

After Bai Ye destroys the Shard and triggers a Catastrophe over Londinium, she accepts that his actions prevented a worse disaster while remaining conscious of the losses such power causes. 559