Agnes Tachyon

Biodata

Feature	Information
Name	Agnes Tachyon (速子前辈)
Alias(es)	Doctor Sovetsky; Senior Tachyon 186 479
Species/Race	Horse Girl 178
Gender	Female
Affiliation	Anjing Zhen's training team 531 532
Occupation/Role	Doctor, medical-science researcher, former racer, and training adviser 177 178 531
Status	Retired from the Shining Series; active as a researcher and team member 177 531
First Appearance	Chapter 24

Background / History

After her debut, Agnes Tachyon won four consecutive races, including the Satsuki Sho, overwhelming the field with her bursts of speed. Her career ended shortly afterward when she developed tendinitis in her left leg, forcing her to leave the racetrack. The narration associates her later medical work with both this regret and a desire to help younger Horse Girls avoid a similar fate. 177

Her retirement fueled rumors of human experimentation and other misconduct. Tokai Teio nevertheless personally states that Tachyon's experiments had never caused real harm. 24 25

Tachyon first approached Anjing Zhen by offering Daiwa Scarlet as a side-by-side training partner, citing her interest in both Anjing and Kitasan Black. She later conducted a professional physical assessment of Kitasan Black and requested access to her complete training logs. 24 178 186

During the overseas-race training camp, she formally applied to assist the team alongside Daiwa Scarlet. Her analysis of Kitasan Black's running, physiology, heavy-track aptitude, and Final Burst potential became central to the team's subsequent training plans. 471 479 528 529

After Anjing Zhen asked her and Daiwa Scarlet to join his team, Tachyon accepted despite minimal pay. 531 532

Appearance

Agnes Tachyon is usually associated with medical and research attire, appearing in a white lab coat or a white long-sleeved trench coat. 186

• Crimson eyes that become particularly intense when discussing research. 670
• Extremely long trench-coat sleeves that cover her hands. 186
• Occasionally wears glasses while examining data or confronting officials. 579 728
• Carries notebooks, a laptop, portable instruments, and experimental reagents during field work. 478 676

Personality

Tachyon is brilliant, eccentric, blunt, and intensely driven by curiosity. She openly tells Anjing Zhen that his understanding of the Zone is limited by his lack of Horse Girl experience and by insufficiently rigorous data, but also acknowledges that his progress exceeds her expectations. 478

Research—especially speed-related research—can push her into a near-frenzied state. She stays awake for days refining theories, enthusiastically chases unexpected results, and treats unusual side effects as problems to solve rather than reasons to stop experimenting. 505

Beneath her unsettling reputation and teasing manner, Tachyon is attentive to her juniors' development. She tutors Kitasan Black and Almond Eye, supports Daiwa Scarlet's thesis work, monitors recovery, and helps organize searches when Almond Eye goes missing after a defeat. 472 479 665 717

Abilities & Skills

Medical Science and Performance Analysis

Tachyon has an exceptional understanding of Horse Girl physiology, capable of interpreting indicators such as oxygen uptake, lactate threshold, fast-twitch fiber ratio, muscle stiffness, reaction time, and body-fat percentage. 178

• Uses stringent research standards; she considers confidence intervals above 0.1% inadequate for pharmaceutical research. 478
• Identified Kitasan Black's superior heavy-track adaptability through motion-capture, track-hardness, lactate, and stride-frequency data. 528
• Detected the possibility that Kitasan Black could improve her Final Burst, a longstanding weakness. 529 530
• Designed hypoxic-chamber and elastic-resistance training to target cardiopulmonary function and explosive leg power. 533 534
• Monitors recovery and physical readiness after major races using detailed physiological data. 585 615

On-Track Observation

Although retired, Tachyon can still run with trainees and use firsthand track experience to complement instrument data. Her warm-up remains precise and race-ready. 479

• Personally assesses track texture, wind effects, required force output, and other factors that are difficult to quantify remotely. 479
• Recognized that Kitasan Black's leading style is technical and adjustable rather than reliant on raw strength alone. 479
• Recommended earlier core-muscle engagement to reduce Kitasan Black's speed loss. 479
• Uses direct observation to evaluate running form, curve handling, force application, and race rhythm. 479 574

Experimental Pharmacology and Monitoring

Tachyon develops her own drugs and reagents, a capability she possessed even during her active racing career. 469 504

• Created a creatine kinase activator intended to accelerate glycogen breakdown and restore physical strength. 503
• Converted the accidental fluorescence side effect on Anjing Zhen into a practical fluorescent-marker system for tracking internal physiological changes in Kitasan Black and Almond Eye. 503 520
• Can formulate temporary disguise agents that alter hair and eye color for several hours to a week. 676
• Her compounds are effective but notorious for strange, usually described as harmless, side effects—including glowing, nonstop burping, and blowing bubbles while speaking. 503 557 677
• Race inspections make direct pre-race use of her drugs risky; Anjing Zhen instead tests many formulations on himself before applying the resulting data to training. 557 585

Training and Research Leadership

Tachyon rapidly turns observations into specialized training programs and organizes the data required to validate them. 505 531

• Assisted at the overseas-race training camp and later joined Anjing Zhen's team. 471 531
• Helped Kitasan Black and Almond Eye prepare for final exams. 471 472
• Shared responsibility for data processing, training design, and physiological monitoring with Daiwa Scarlet. 505 528
• Proposed an environmental “mapping logic” linking overseas conditions to physiological responses and equipment interventions. 637
• Defended the team's year-long overseas preparation and research against attempts to dismiss it without evidence. 728

Equipment / Research Items

• Leather notebook — Used to draft her application to assist Anjing Zhen's training camp. 471
• Laptop, portable instruments, and notebooks — Field equipment for collecting and analyzing running data. 478
• Fluorescent-marker system — Tracks internal circulation and physiological changes through specialized monitoring equipment. 520
• Hypoxic chamber and elastic training equipment — Used for cardiopulmonary and Final Burst development. 533 534
• Experimental potions and reagents — Includes recovery agents, marker compounds, and disguise agents. 503 676 677

Relationships

• Anjing Zhen — Initially a subject of her curiosity because of his training methods; later becomes her close research partner and the leader who recruits her to his team. 178 529 531 552
• Kitasan Black — Junior, research subject, and trainee whose physiology, running style, heavy-track aptitude, and Final Burst Tachyon studies in depth. 479 528 529
• Daiwa Scarlet — Former junior whom Tachyon cares about deeply; her research collaborator and frequent assistant during data collection and analysis. 479 505 528
• Almond Eye — Junior teammate whom Tachyon tutors, monitors during physical development, and supports through specialized training. 472 673 717
• Tokai Teio — Student Council President who vouches for Tachyon's experiments and helps her secure training equipment. 24 533
• Forest Treasure Hole — Same-generation rival whom Tachyon defeated in both the Short Wave Cup Championship and Satsuki Sho before retiring. 518

Major Arcs

• Initial interest in Anjing Zhen and Kitasan Black — Supplies Daiwa Scarlet for side-by-side training, examines Kitasan Black, and obtains her training records. 24 178 186
• Training Camp research — Joins the camp to collect direct data, investigate Zone triggers, and refine Kitasan Black's performance. 471 478 479
• Final Burst project — Identifies a potential improvement in Kitasan Black's finishing speed and creates a targeted program involving hypoxic training. 529 530 533 534
• Team recruitment — Accepts Anjing Zhen's offer to join his training team with Daiwa Scarlet. 531 532
• Overseas-expedition preparation — Develops environmental adaptation models and argues for the validity of the team's overseas-race research. 637 728

Notable Quotes

“Of course it would be—the limits of Horse Girls!” 670

“I’m a Horse Girl too. Since there’s a track here, isn’t it only natural to go run on it?” 478

“Of course you lack experience. And ability, too.” 478