Xie Yuanxun

Biodata

Feature	Details
Name	Xie Yuanxun (谢元勋)
Alias(es)	Old Xie; Teacher Xie 1277 1371
Gender	Male
Affiliation	Rocket Institute; Yuanxun Rocket Company
Occupation/Role	Rocket expert, mathematician, founder of Yuanxun Rocket Company 1277
Status	Active 1807
First Appearance	Invites Song He to collaborate on a mathematics project during a Rocket Institute basketball game 518

Background / History

Xie Yuanxun was a mathematics prodigy from an early age: in his first year of junior high, he could solve roughly 70–80% of university advanced-mathematics problems. He entered a Youth Class the following year and was sent to a school for gifted students, where Black Glasses became his mathematics teacher. Their harsh teacher-student relationship eventually escalated into a fight that sent both of them to the hospital. 544 545

Despite their conflict, Black Glasses later collaborated with Xie on several projects, including the Xie Engine. Black Glasses deliberately gave Xie the credit, believing the younger researcher needed achievements and honors more than he did. 545

At age 24, Xie designed a new generation of rocket engine whose testing performance surpassed engines developed by many veteran designers. His work on mathematical problems and the Xie Rocket Engine earned him the School-Level Excellent Student Award and made him a major contributor to the Lunar City Project. 506 524

He subsequently founded Yuanxun Rocket Company. Its early flagship concept was an electromagnetic acceleration rocket designed to use nighttime grid electricity for launches; Xie openly acknowledged that the idea was innovative but unproven while seeking investment. 1108

Appearance

Xie Yuanxun is a well-groomed and athletic young man whose polished public image contrasts sharply with his rough manner of speaking. 518 1108

• Often appears in formal business attire, including a black suit, trousers, and a neatly tied tie. 1108
• Maintains carefully styled hair and even uses makeup before investor meetings despite sleepless nights. 1108
• A highly capable basketball player with strong muscles, exceptional agility, and a star-like presence on court. 518
• Later appears with black-and-white hair despite retaining a young face. 1371

Personality

Xie is blunt, excitable, and habitually vulgar in speech; Song He compares his manner to that of a rogue soldier rather than an academic giant. Marriage moderates his temper and swearing somewhat, but he still slips into colorful language when excited. 1277 654 1801

He is intensely competitive with Song He. After being overwhelmed by Song’s memory and endurance, Xie repeatedly tries to resume studying and challenge him again rather than accepting defeat. He is also impulsive when tackling mathematics problems, often beginning a solution before reading all of the conditions. 547 572

Behind the bravado, Xie is ambitious, practical, and willing to take responsibility for large-scale projects. He seeks solutions for the economic crisis affecting his home city, develops space tourism as a potential employment engine, and pursues global talent recruitment for his institute. 1371 1531

Abilities & Skills

Mathematics

Xie is an elite mathematician with documented Grandmaster Level 30 mathematical ability when he first meets Song He. 518

• Completed preliminary solutions and proofs for multiple difficult mathematical problems, including the Danne Turbulent Flow Problem and Qin Yanghui Dynamics Problem. 524
• Can rapidly attempt advanced problems and identify possible solution routes, though his impatience can make him overlook limiting conditions. 572
• Applies mathematics to aerospace engineering, drone trajectory modeling, and confidential technical projects. 563 566

Rocket Engineering

Xie is a renowned rocket specialist and the designer of the Xie Rocket Engine. 506 1277

• Developed a rocket engine whose test performance exceeded many veteran designers’ products. 506
• Founded Yuanxun Rocket Company to develop electromagnetic acceleration rockets. 1108
• Oversees electromagnetic rocket-well development while competing with Russian aerospace projects. 1128
• Expands the company into commercial launch services, space tourism, and Space City construction. 1371 1372

Drone Systems and Battlefield Operations

During the Honeycomb project, Xie serves as a technical consultant for a Red Army brigade and joins field exercises directly. 602

• Developed a Fixed-Point Model for recovering drone swarms, calculating routes between fixed launch and recovery positions. 563
• Operates Honeycomb drones from frontline foxholes, directing them to track enemy movements and entering recovery programs under fire. 605
• Gathers intelligence on competing teams’ research paths and adjusts strategy to protect his team’s ranking. 563
• His Fixed-Point approach is simpler and faster to implement than Song He’s Moving Model, but is less adaptable to an unpredictable recovery point. 563

Public Presentation and Project Management

Xie can translate technical projects into commercial opportunities and public-facing events.

• Presented Space City’s technical difficulties, profit channels, investment returns, and long-term development during a public fundraising event. 1413
• Led commercial spaceflight passengers through spacesuit selection while livestreaming the journey to Space City. 1534
• Personally introduced Space City’s directed-energy infrastructure and the Cloud Piercer system to wealthy passengers and engineers. 1535

Relationships

• Song He — Friend, mathematical rival, Honeycomb teammate, and business collaborator. Xie first invites Song to work together on a mathematics project; they later cooperate on drones, aerospace projects, and Space City plans. 518 563 1371
• Black Glasses — Former mathematics teacher and later project superior. Their relationship is full of insults and conflict, but Black Glasses also supported Xie’s career by assigning him credit for shared work on the Xie Engine. 542 545 605
• Xiang Xiaotong — Song He’s collaborator and a trusted adviser whom Xie consults on space tourism and international talent recruitment. 1371 1531
• Zou Yunshui — Wife. Her continued work during late pregnancy worries Song He; Xie quietly arranges a delivery team while trying not to provoke her. 1147 1153
• Yuan Tiangang and Yang Yu — Personal students. After reviewing their rocket data following their dormitory explosion, Xie accepts both boys as disciples. 1277
• Yuanxun 1 — Robot that identifies Xie as its master and serves as a driver and guide in Space City. 1806

Story Role / Major Arcs

University Recognition and Song He Rivalry

Xie meets Song He at a Rocket Institute basketball game, where he invites him to collaborate over the summer. His mathematical strength, popularity, and rocket-engine work establish him as one of Frontier Technology University’s most prominent students. 518 524

Honeycomb Project and Unmanned Legion Exercise

Xie and Song form a two-person Honeycomb research team under Black Glasses. They compete over drone-recovery approaches, endure desert conditions, and participate in a large-scale military exercise where Xie personally operates Honeycomb drones at the front. 542 544 563 605

The exercise proves punishing: Xie is lured into Sun Bin No. 7’s trap, forced to retreat under drone attacks, and emerges exhausted, sunburned, and visibly worn down. 605 606

Yuanxun Rocket Company

Xie launches Yuanxun Rocket Company around his electromagnetic acceleration rocket concept. The company grows quickly enough to push a Russian electromagnetic rocket project out of the civilian market and contribute to the bankruptcy of a European civilian aerospace company. 1108 1371

When his home city’s mining industry faces collapse and threatens 100,000 livelihoods, Xie considers space tourism as a replacement industry rather than treating the company purely as a source of profit. 1371

Space City Development

Xie proposes building a Space City capable of housing 800 people, favoring a chain-structure design that could provide a lower-energy gravity environment for long-duration residence and travel. 1372

His Space City project reaches its fundraising target of 1.86 trillion in only four and a half minutes after being listed on the Interstellar Scientific Research Platform. 1413

He later leads passenger flights to Space City, promotes customized spacesuits, and presents the Cloud Piercer directed-energy system. 1533 1534 1535

Mentor and Industry Critic

Xie accepts Yuan Tiangang and Yang Yu as personal students after their reckless rocket-building attempt, teaching them to remain calm and proactive when sudden disasters occur. 1277

During the Dream Maniac crisis, his internal speech criticizing the Dream Helmet’s technology and safety goes viral. Song He considers the recording authentic precisely because its blunt, abrasive style is unmistakably Xie’s. 1800 1801

Notable Quotes

“This is so simple!” 572

“Space tourism!” 1371

Trivia

• Xie once received at least thirty love letters at once and claims that, while he changes partners frequently, he never dates more than one person at a time. 570
• He impersonated a robot by wearing a blue circular light on his temple and maintaining an artificial voice, successfully fooling Song He and Xiang Xiaotong. 1807
• During the Unmanned Legion exercise, he hid in swamp mud to evade reconnaissance aircraft, was exposed to green biochemical smoke, and fought through a forest fire. 605