Yi Xuan

Biodata

Power Progression

Yi Xuan develops Qi Refining cultivation, Divine Sense, and physical strength separately. Realm comparisons for his Divine Sense or body do not mean that his immortal cultivation has reached those realms 79 160 298 439.

Background and History

Transmigration and Rootless Diagnosis

Yi Xuan awakens in the cultivation world during the Azure Cloud Sect's recruitment assembly. Initially identified as possessing a seventh-grade Spirit Root, he reaches the twelfth layer of Qi Refining in one year. The sect master promises to accept him as a direct disciple after Foundation Establishment and eventually make him sect master after Golden Core 2.

Instead, Yi Xuan remains unable to establish his foundation. His advancement into the thirteenth layer exposes his Rootless condition, and the sect formally severs his master-disciple bond while allowing him to remain a disciple. He moves to a courtyard below the mountain and supports himself independently, though he retains his attachment to the sect and its people 1 2 9.

Establishing a Technological Path

The Book of Technology has existed in Yi Xuan's mind since his transmigration, but he initially ignores it in favor of cultivation. After his diagnosis, he discovers that it contains technologies far beyond his previous world's achievements and resolves to pursue science as an alternative route to power 4 38.

Working from an underground laboratory beneath his courtyard, he substitutes cultivation techniques for missing industrial infrastructure. Artifact refinement supplies materials and manufactured components, while his computer assists with technical processing. Commercial products such as fans and air conditioners provide income, followed by a grenade business developed with Li Jingming and Liang Shi 3 4 5 22 25.

His modified firearms demonstrate that his low cultivation does not define his fighting strength. A modified pistol threatens Foundation Establishment cultivators, a Gatling gun kills a Late Foundation Establishment opponent, and Shi Zhenghao uses his Barrett to kill an Evil Cultivator from fifty li away. Cui Yan later appoints him Sect Protector 29 32 49 62.

Puppets and the Artifact Ruins

Yi Xuan studies the Martial Dao to strengthen his body and searches for a Puppet Master to support his technological work. The Azure Cloud Sect's old supreme elder reveals that he secretly practices the craft and offers Yi Xuan his inheritance 71 79 80.

Sent to the Artifact Ruins despite preferring to remain in his laboratory, Yi Xuan turns a cave into a temporary research base with ten Pangu units. He confronts the threat posed by Qi Yun and eventually refines the Artifact Sect's great hall. The hall drains the stored True Qi from his Dantian black hole to complete its refinement before the ruins close 99 103 112 117 123.

Blood Asura Gate and the Twin Corpses

Yi Xuan destroys the Blood Asura Gate, avenging the devastation suffered by Ning Yun. Lü Huang then deliberately draws him into a confrontation with Blood Venerable, hoping Yi Xuan will eventually kill the enemy he cannot defeat himself 187 188 421.

Blood Venerable's invading Divine Sense overwhelms Yi Xuan and seizes the Book of Technology inside his sea of consciousness. Yi Xuan ultimately defeats the fragment through the book's knowledge and absorbs it. Rather than execute Lü Huang for engineering the encounter, he places him under Soul Control and retains his services 184 185 188 477.

The refined Black and White Twin Pearls give Yi Xuan his Good and Evil Twin Corpses. Their connection lets him distribute technical knowledge and research work among three selves, including leaving the Evil Corpse in a specially designed Pangu unit to support the Xia Kingdom while he travels 167 201.

Eternal Sea and the Azure Cloud Sect's Rise

Yi Xuan searches the Eternal Sea for Mu Anqing, continuing even after others abandon the effort. His conflict with North Wave City's ruling family develops into a lasting feud with Hai Qingshi. He also recognizes that his dependence on Spirit Stones and cultivation techniques creates technological vulnerabilities, prompting research into nuclear power 191 210 211 223 380 421.

His puppet army defeats the Mystic Snow Pavilion and helps elevate the Azure Cloud Sect into the Southern Frontier's leading powers. By the time he returns to the sect, its leaders treat him as their pillar of support. He remains respectful toward Xiao Anhe, but finds that his carefully preserved old courtyard no longer feels like home 281 285 314.

In the Tomb of the Sea God, Gold Mountain accelerates his Spirit Refining Instruction cultivation by more than tenfold. The resulting imbalance destroys his sea of consciousness before the Dantian black hole rebuilds it. He subsequently strengthens his body to Nascent Soul level and ultimately brings Mu Anqing safely back 290 292 298 421.

The Heavenly Dog Crisis

Yi Xuan becomes central to the Cultivation Realm's attempt to escape the Heavenly Dog. Venerable Yuan, Hai Qingshi, and the Barbarian Ancestors come to depend on his plans, while Zhuo Ning's selection as Common Sovereign of the Human Clan rests on Yi Xuan's support 380 389 390.

To supply the Dyson Sphere and Stars' Assistance projects, he expands industrial production and directs the realm's powerhouses to gather Spiritual Qi from secret realms. His existing scientific workforce, trained over fifty years in the Southern Frontier, supports the wider effort 399 411.

After four hundred years away from his courtyard, he reunites with Mu Anqing and Ning Yun. No. 01 broadcasts the interstellar fleet, Dyson Sphere, and Stars' Assistance project worldwide as Yi Xuan announces that the Heavenly Dog's stomach wall is nearing its limit 421.

Interstellar Research and the Ending

During his fifty-thousand-year interstellar journey, Yi Xuan investigates souls scientifically. At the Immortal Court's ruins, quantum-mode sensors reveal countless suffering souls that ordinary scans could not detect. His prolonged isolation and uneven development also impair his speech and emotional life, leading the Good Corpse to handle public interactions while his original self concentrates on research 435 439 441 445 447.

After surviving the Three-Legged Golden Crow's attempt to destroy him, Yi Xuan gains Creation through the transformed Book of Technology. He later dispatches mechanical spacecraft carrying technological Seeds into Demon Race nests, using formation data and manufactured blood to bypass their defenses 478 480 506.

His final bodily transformation precedes a disturbing reversal: he kills the Great Sage of Longevity, and Xiao Anhe insists that the figure before them is not his disciple. The figure maintains that he is Yi Xuan. Later, after the Sovereign strips away the Book of Technology, a battleaxe hidden within the Artifact Sect Great Hall carries Yi Xuan's consciousness into a realm of paired, funnel-shaped universes 608 609 613.

Yi Xuan subsequently remains absent as the myriad races attack the Human Clan, earning accusations of betrayal. In the ending, he demonstrates universe-producing power, returns forty-eight crystals to their respective universes, and divides his soul into two identical selves, with smaller soul clusters entering the Good and Evil Twin Corpses 620 623.

Appearance

• Early appearance: A good-looking young man who gives little attention to grooming or presentation because of his research habits 33 100.
• After the village massacres: Returns from his base looking like an elegant young gentleman, but with an unreadable gaze likened to stagnant water 171.
• Twin Corpses: Both share his face. The white-robed self appears righteous and approachable; the black-robed self has a furrowed brow and an openly vicious expression 167.
• Final form: Possesses a complete, exceptionally powerful Human Clan body with a comparatively ordinary face. He wears black battle armor shimmering with seven colors 608 609.

Personality

Yi Xuan is a persistent, research-driven homebody. He would rather remain in his base conducting experiments than accept public responsibilities or venture into dangerous situations. His willingness to spend months secluded with his work is a major factor in his technological progress 29 99 395.

He is pragmatic rather than impulsive. When threatened by Young Master Li, he uses hospitality and flattery to buy time instead of attacking a better-supported opponent. His stated approach to enemies is similarly calculated: avoid unnecessary conflicts, strike decisively when victory is possible, and retreat to develop stronger technology when it is not 20 21 208.

His affection is often expressed through practical help rather than ceremony. He gives Mu Anqing weapons without payment, continues searching for her after others stop, and remains openly respectful toward Xiao Anhe after becoming far stronger than the sect's leaders. He also argues that ordinary people will only receive genuine respect from cultivators once they possess the means to threaten them 19 38 314 421.

Long isolation erodes his emotional responsiveness. Watching the Twin Corpses quarrel briefly restores a sense of humanity, while his later self-analysis attributes his condition to developing overwhelming spiritual power without corresponding cultivation of his body and heart 435 439.

Abilities and Skills

Scientific Research and Hybrid Engineering

Yi Xuan combines his previous-life education, the Book of Technology, and cultivation-world resources to build an industrial foundation from scratch 4.

• Uses artifact refinement to obtain and process materials without conventional heavy machinery 4.
• Automates manufacturing through modified artifact-refining cauldrons; one upgraded model processes fifty grenade parts daily 17 22.
• Uses No. 01 for simulations, cultivation-method optimization, technical modeling, and research support 71 149 238.
• Combines machinery, biology, electronics, nuclear power, Spiritual Qi, and Immortal Qi in combat systems 364.
• Recognizes dependence on cultivation resources as a weakness and pursues independent power sources 191.

Book of Technology and Creation

The Book of Technology can imprint requested technical knowledge directly into Yi Xuan's mind. Its contents include antigravity, controlled nuclear fusion, advanced artificial intelligence, and technologies he initially cannot understand 4.

• Knowledge access does not eliminate the need for materials, tools, manufacturing capacity, or experimentation 4.
• Can overwhelm an invading consciousness with otherwise incomprehensible scientific knowledge; this defeats Blood Venerable's clone 477.
• Gains an intelligent search function after transforming into a tablet-like device 480.
• Creation produces objects with absolute precision directly from elements, bypassing conventional material limitations 480.
• Is later removed by the Sovereign; Yi Xuan's final universe-producing feat occurs without it 613 623.

Rootless Constitution and Dantian Black Hole

Yi Xuan's Rootless condition prevents Foundation Establishment but permits continued accumulation of Qi Refining layers and lifespan 2 50 403.

• The black hole stores immense True Qi reserves and conceals most of them from external observation 2 50.
• Can release reserves to sustain extraordinary consumption, as during refinement of the Artifact Sect's great hall 123.
• Rebuilds his collapsed sea of consciousness 292.
• Triggers an uncontrollable defense against the Three-Legged Golden Crow and later releases energy refined from its divine soul 478 480.
• Its role in preventing Foundation Establishment remains Yi Xuan's hypothesis, not an established explanation 480.
• Spirit Root transplantation works on other subjects but repeatedly fails on him; transplanted roots disappear without activating 403.

Spirit Refining Instruction and Divine Sense

The Spirit Refining Instruction strengthens Divine Sense through visualization and tempering. Yi Xuan's simulated method involves grinding an imagined iron pestle into a needle within his sea of consciousness 24 44 160.

• Divine Sense Flying Needles: Used for precise formation engraving; five needles allow five formations to be engraved simultaneously 160.
• Visualization constructs: Manifests objects including a Barrett and a Black Tortoise 184 290.
• Amplification and defense: Prepares defenses against sea-of-consciousness invasions after his encounter with Blood Venerable 300.
• Frequency matching: Helps Venerable Yuan perceive the hidden souls detected in the Immortal Court's ruins 441.
• Limits: Strong Divine Sense does not automatically strengthen his body. Developing it beyond his physical capacity once causes his sea of consciousness to collapse 292.

Good and Evil Twin Corpses

The Twin Corpses originate from souls associated with the Black and White Twin Pearls and function as additional selves for research and remote operations 167 201.

• Can appear in Yi Xuan's sea of consciousness instantly regardless of distance 201.
• Receive knowledge from the Book of Technology through their connection with him 201.
• Cannot fully leave their pearls to occupy a cultivator's sea of consciousness, unlike a genuine Second Primordial Spirit 201.
• Derive combat effectiveness from their host equipment: an unarmed Pangu supports Peak Foundation Establishment strength, while Black Tortoise No. 2 supports Nascent Soul-level strength 201.
• The Good Corpse later represents him socially while the original remains behind the scenes 445.

Martial Dao

Yi Xuan practices the Clear Origin Body Tempering Instruction to address his weak physique 77 79.

• Internal power circulates through flesh, bones, blood, muscles, and skin rather than entering the meridians or Dantian 77.
• Physical improvement accelerates his passive True Qi circulation 79.
• With the Power of the Stars, becomes the first documented martial artist in this world to attain Nascent Soul-level physical strength 298.

Final Universe Manipulation

After losing the Book of Technology, Yi Xuan demonstrates power based on understanding the underlying essence of technology and cultivation 623.

• Produces black spheres, each containing a complete universe 623.
• Divides forty-eight crystals between two universes 623.
• Splits his soul into two identical Yi Xuans and separates smaller soul clusters into the Twin Corpses 623.

Equipment and Inventions

• No. 01 — Computer intelligence used for simulations, research, optimization, modeling, and global broadcasts 5 71 149 238 421.
• Cultivation-powered grenades — Replace gunpowder with a cultivator's True Essence and use mysterious-iron fragments 13.
• Modified firearms — Include pistols, a Gatling gun, and a Barrett firing improved explosive 12.7 mm ammunition 29 32 48.
• Pangu units — Robots used for laboratory work, production, and specially designed Twin Corpse bodies 89 103 201.
• Black Tortoise armor — Piloted combat machinery with scanning systems; also used for rescue and as a Twin Corpse host 71 201 281.
• Firmament — Aircraft tested at Mach 9, with a cruising speed around Mach 8; its highest-speed operation consumes costly quantities of Spirit Stones 89.
• Laser emitter — A High-Grade Spirit Stone-powered weapon that gives him a means to contend with Nascent Soul experts 97.
• Artifact Sect Great Hall — Refined within the Artifact Ruins; later resides within his soul and conceals a battleaxe. Its collapse leaves a cyan stone slab in the ending 123 613 623.
• Force Field Controller — An early research-institute device that enables personal flight but has crude control, affects only its user, and is unsuitable for combat 321.
• Starlink and space-based weapons — Includes quantum satellites, laser weapons, and kinetic weapons. Zhuo Yongnian destroys dozens of its assets during their confrontation 356.
• Giant coffins and Godzillas — Deploys more than a hundred Godzillas from coffins whose panels can form a multilayer defensive enclosure, which he calls his strongest shield 356.
• Biochemical stand-ins — Replaceable avatars that allow him to interact remotely while keeping his true body elsewhere 380.
• Dawn — Exploration vessel whose reconnaissance systems reveal hidden souls when switched to quantum mode 441.
• Technological Seeds — Quantum computers containing his technical knowledge, enclosed in liquefying shells that can become equipment for establishing technological civilizations 506.
• One-handed battleaxe — Emerges from the great hall inside his soul and opens a rift leading his consciousness beyond the universe 613.

Relationships

• Xiao Anhe — Master. Although their formal bond is severed early, Yi Xuan continues to treat him as his master. Xiao Anhe later vehemently rejects the identity of the figure who kills the Great Sage of Longevity 1 185 314 609.
• Shi Zhenghao — Senior brother, paid helper, and frequent companion. Obtains difficult materials, tests Yi Xuan's weapons, and sometimes involves him in missions without permission 3 49 89 167.
• Liang Shi — Disciple and research collaborator. Begins by assembling grenades and later helps modernize the Xia Kingdom and distribute technological Seeds 25 185 201 506.
• Mu Anqing — Junior sister. Yi Xuan equips her, reprimands her dangerous choices, and persists in rescuing her from the being occupying her body 19 211 298 421.
• Ning Yun — Junior sister whose family and home are destroyed by the Blood Asura Gate. Yi Xuan avenges her against the sect and later Blood Venerable 185 421.
• Boss Lin / Fatty Lin — Longtime friend and commercial partner. Helps sell Yi Xuan's inventions and navigate business dealings in the capital 5 27 34 130.
• Old Supreme Elder — Mentor and protector who offers his secret Puppet Master inheritance. Yi Xuan promises to reconstruct his destroyed palace 80 149 185.
• Li Jingming — Grenade-business partner; their cooperation supports expanded manufacturing 22.
• Cui Yan — Sect master and senior brother. Appoints Yi Xuan Sect Protector and later credits him with protecting the sect 62 281 314.
• Zhuo Ning — Martial Dao guide and political collaborator. Helps modernize the Xia Kingdom and becomes Common Sovereign of the Human Clan with Yi Xuan's backing 79 201 390.
• Lü Huang — Manipulates him into confronting Blood Venerable. Yi Xuan spares him under Soul Control and employs him afterward 187 188 223.
• Venerable Yuan — Rescuer and major collaborator in the Heavenly Dog crisis and later exploration of the Immortal Court's ruins 311 380 441.
• Hai Qingshi — Enemy turned reluctant collaborator. Their feud includes the death of Hai Qingshi's father, but he later supplies Yi Xuan with the Spirit Root Transfer Secret Technique 380 403.
• Blood Venerable — Enemy whose Divine Sense fragment invades Yi Xuan's mind. Yi Xuan absorbs the fragment and eventually kills the original 184 188 421.
• Peng Tianlin — Battlefield ally who follows Yi Xuan's instructions during the confrontation with twenty-five Demon Race Supreme Powerhouses; later seeks revenge for the Great Sage of Longevity 565 609.
• Sovereign — Removes the Book of Technology from Yi Xuan and later witnesses his creation of universe-containing spheres 613 623.

Notable Quotes

“Since you want ordinary people to gain respect, you have to give them the ability to threaten cultivators.” 38

“If a day comes when you hear rumors about me in the capital, come find me. By then, I might be able to do it!” 38

“Technology? Cultivation? I have nothing now! But what of it? Once you understand their essence, these things are yours for the taking!” 623

Trivia

• Yun Shulan initially mistakes “Rootless Person” for a euphemism for a eunuch, forcing Yi Xuan to explain that it means someone without a Spirit Root 38.
• When recognized through his famous puppets, he introduces himself as Shi Zhenghao and silently apologizes to his senior brother 285.
• His supposed “Second Primordial Spirit” is a cover story: he allows Zhuo Ning and Liang Shi to misunderstand the Evil Corpse's Pangu body to conceal the Twin Corpses 201.
• No. 01 finds a correlation between strong technological aptitude and poor Spirit Roots. Yi Xuan suspects a connection to his own condition, but the evidence remains inconclusive 403.