Yu Duan

Biodata

Feature	Value
Name	Yu Duan (于端)
Alias(es)	Yongheng; Star Sword King; Founder Yongheng; Hengjie
Gender	Male
Affiliation	Beiming Sacred Land; Virtual Universe Company; human race; Eastern Extreme Domain
Occupation/Role	Cultivator; sword wielder; commander and founder
Status	Active; Ultimate Realm cultivator
First Appearance	Chapter 11

Power Progression

Stage / Realm / Level	Chapter	Notes
Fifth-level domain	19	Broke through after an epiphany; previously at the peak of the third-level domain.
First level, Light and Time Sword Technique	28	Mastered the basics of Light Splitting Stab in less than two months.
Threshold of the Time Origin Law	29	Revealed his initial grasp of the higher law through Shadow Bearing Cut.
Second level, Light and Time Sword	30	Used it to defeat Pengnuolai and place 67th in the ranking tournament.
Third level, Light and Time Sword	33	Reached this level after 15 years at Beiming Sacred Land; lost to Yalunsi in the final ranking duel.
Force exertion: 59×	34	Improved from 43× after Qinghuan King demonstrated perfect power mobilization.
Ninth level, Myriad Universe Heavenly Bridge	75	Cleared the ninth level following Chaos Tablet comprehension.
Universe Level Black Warrior	91	Fused ten Xueluo Crystals; his gene level rose to ten times that of an ordinary lifeform.
Number one Universe Level member, Primal Secret Realm	96	Retained first place through qualification battles and completed all 108 essences of the Law of Time.
Universe Venerable-level willpower	98	Advanced his will through the Book of Causality.
King Level authority	121	Entered the Outer Battlefield with King Level authorization after gaining recognition from the Law of Time.
Peak martial-art power	126	Fully grasped the 17th level of the Stasis Chapter and judged his self-created sword moves to have reached the peak level.
Universe Master	179	Newly promoted; entered the Universe Boat to cultivate at the Black Pattern Stone Pillar region.
Tier 7 combat power	199	Repaired the River of Life, revealing it as a Supreme Treasure.
Mid-tier Eternal True God insights	257	Advanced during seclusion in Sanyuan City while cultivating the Indestructible Golden Body and Myriad Worlds.
Strongest Chaos Realm expert on the Origin Continent	266	Defeated Great Sage Yunqiong and gained Feng Xi as his teacher.
God King realm	271	Broke through and tested his strength against Empress Fengdu's clone.
Ultimate Realm	273	Broke through using the Samsara Fruit; willpower reached the Ultimate Realm threshold.
Second Level God King Realm insight, Great Dao of Causality	279	Fused the Fu and Huo branches and gained the ability to draw upon the Causality Origin Great Dao.

Background / History

Yu Duan joined the Beiming Sacred Land after World Master Yan Lun recognized his potential and invested 3,000,000 Universe Coins in him. Yu Duan attempted to share the money with Kun Zhu and Shen Jian, but both refused and urged him to support their clan instead. 11

At the Sacred Land, Yu Duan trained relentlessly in both reality and the Virtual Universe. His rapid advancement in light and time laws caught Qinghuan King's attention; Qinghuan King ultimately accepted him as a disciple and arranged for World Master Ku Mixiu to instruct him in the Light and Time Sword Technique. 25 27

He later entered the Primal Secret Realm, distinguished himself on the Myriad Universe Heavenly Bridge, and gained the attention of numerous major figures. His cultivation included a 108-year transformation in the Dragon Blood Pool, the fusion of ten Xueluo Crystals, and the acquisition of immense wealth through the sale of a Beiyao Erosion Crystal. 62 87 91 92

Yu Duan became a major combatant in the Outer Battlefield, where his soul mastery allowed him to enslave King Level opponents and form a powerful legion. His reputation as Star Sword King spread after he demonstrated invincible King Level soul-master capabilities. 137 139

After becoming a Universe Master, he cultivated in the Universe Boat, repaired the River of Life, and began claiming resources and territory for the human race. He later mastered the Universe Boat itself and entered the Origin Continent, where he rose from Eternal True God to Chaos Realm and accepted Feng Xi as his teacher. 179 199 204 252 266

Personality

Yu Duan is disciplined, patient, and unusually comfortable with prolonged, painful cultivation. He takes pleasure in visible daily improvement and repeatedly pushes himself through extreme training rather than becoming impatient with slow progress. 14 19 31

Despite his talent and rapid rise, he is consistently respectful toward teachers and seniors. Qinghuan King specifically valued his humility, steady character, and refusal to become arrogant or complacent. 25

He is also pragmatic with wealth and resources, seeking his teachers' advice before spending major rewards. In conflict, he can be ruthlessly efficient: his Outer Battlefield hunting became infamous for its slaughter-oriented style, and he readily uses soul enslavement against powerful enemies. 92 127 137

Appearance

Following his Dragon Blood Pool transformation, Yu Duan possesses a perfectly proportioned evolved body and can alter his size through an innate secret technique. 87

• Usually appears in white-and-gold battle armor during formal combat settings. 29
• Has a Third Pupil in the center of his brow, used for annihilation and soul-based techniques. 87 247
• His true divine body reached a height of 120 million kilometers during Origin Continent cultivation. 257

Abilities & Skills

Book of Causality

The Book of Causality removes cultivation bottlenecks by allowing Yu Duan to advance-borrow future insight, which he must later repay through sustained study or practice. 14 28

• Allows pre-advancement in law comprehension and secret-technique mastery.
• Requires repayment costs tailored to the borrowed insight, such as years of meditation or millions of full-power technique executions. 28
• Was used to elevate his willpower to the Universe Venerable level. 98
• Its repeated future-comprehension advances created causal corridors extending into Yu Duan's past and future. 278

Light and Time Sword Technique

Yu Duan's foundational combat art is the nine-level Light and Time Sword Technique, combining light and time laws through the Light and Time Sword. 19

• Light Splitting Stab — first-level technique mastered in under two months. 28
• Shadow Bearing Cut — a technique through which he first displayed Time Origin Law fluctuations. 29
• Reached the eighth form, Sword Shadow Intercepting Cosmic Light, after comprehending 90 Time Law essences. 96
• Later created Juejue, his second sword technique, based on the resolve of a mayfly shaking a tree. 127

Time Origin Law

Yu Duan developed extraordinary mastery over the Law of Time, eventually comprehending all 108 documented essences. 96

• Mastered the three supreme time changes: Pause, Acceleration, and Deceleration, through the Eternal Cycle secret technique. 103 144
• His Stasis Chapter attainment enabled peak-level self-created sword moves. 126
• His understanding of time later granted King Level authority and recognition from the Law of Time. 121

Illusion and Soul Mastery

Yu Duan possesses powerful illusion techniques and the ability to enslave enemies through soul control. 98 137

• Learned Spirit of the Primordial from Youhou Master to amplify illusion techniques. 98
• Can suppress opponents with soul illusions; even Tier 3 Universe Masters without high-level soul treasures would be unable to resist fully. 180
• Enslaved the Scaled Giant and the limit King Level Bug Race soul master Yuanling King. 137
• Used the Third Pupil to inspect Master Yulan's soul and verify his identity as an outsider. 247

Third Pupil

Awakened after the Dragon Blood Pool transformation, the Third Pupil is an innate talent secret technique. 87

• Fires an annihilation beam. 87
• Channels powerful soul energy for direct soul examination and attacks. 247
• Works alongside Yu Duan's illusion and soul-control methods.

Infinite Eye

The Infinite Eye is a treasure Yu Duan claimed after mastering the Universe Boat. 252

• Energy Vision — reveals the flow and circulation of energy, including causality, time, divine power, souls, and True God Hearts. 252
• Can observe the internal energy routes of the Universe Boat. 252
• Allows direct observation of manifestations of the Boundless Origin Great Dao, though doing so initially caused immense strain. 252

Great Dao of Causality

Yu Duan possesses exceptional affinity with the Great Dao of Causality, allowing unusually natural comprehension. 278

• Entered the threshold of Causal Ember Fire, a curse technique. 278
• Learned Heavenly Cycle Burden, a divine-calculation inheritance used to predict and manipulate causal possibilities. 278
• Can foresee at least one second into the future in God King Ultimate Realm-level battles. 278
• Merged the Fu and Huo branches, attaining Second Level God King Realm insight. 279

Equipment / Weapons / Items

• Light and Time Sword — top-tier Force God Weapon with a nine-level sword-technique inheritance. 19
• Tamyue Boots — Tier 5 force boots given by Qinghuan King to address Yu Duan's movement weakness. 32
• Liujing — top-tier auxiliary metallic lifeform; cultivated to Universe Level 1. 30 31
• Moyun Vine — evolved to the Immortal level and became Yu Duan's battle armor. 96
• River of Life — repaired Supreme Treasure that raised Yu Duan to seventh-tier combat power. 199
• Eight Venerable Pagoda — special treasure containing Beast God Path secret patterns. 204
• Wan Jie Sword — sword-type Origin Embryo selected from the World of Jin. 247
• Wan Jie Armor — armor-type Origin Embryo selected from the World of Jin. 247
• One Hundred Thousand Heavens — ranged-attack Origin Embryo selected from the World of Jin. 247
• Infinite Eye — treasure enabling Energy Vision and direct observation of the Boundless Origin Great Dao. 252
• Xuanyin Tianyan Wheel — God Emperor-level calculation and array treasure containing the Heavenly Cycle Burden inheritance. 278

Relationships

• Qinghuan King — first major teacher; recognized Yu Duan's potential, funded his development, and guided his light-and-time cultivation. 25 30 34
• Darkness Master — later teacher; monitored Yu Duan's progress and guided his development of peak martial arts. 126 158
• Feng Xi — personal teacher in the Eastern Extreme Domain; accepted Yu Duan as her second personal disciple and supplied Ultimate Realm resources and inheritances. 266 268
• Empress Fengdu — senior sister under Feng Xi; provides resources, guidance, and combat assessment. 268 271
• Yan Lun — World Master who recruited Yu Duan into Beiming Sacred Land and gave him an initial financial investment. 11
• Ku Mixiu — World Master instructor and bodyguard specializing in the Light and Time Sword Technique. 27 28
• An Yao — friend and friendly rival; gave Yu Duan the Light and Time Sword. 19 27
• Yalunsi — rival turned friend; defeated Yu Duan in the Sacred Land final and later recommended the Xueluo World mission. 33 96
• Kedi — fellow genius and recurring competitor; traveled with Yu Duan in Chaos City but fell behind him in law comprehension. 75 96
• Mohe — Sector Beast King subordinate and disciple; Yu Duan provides resources for his growth and intends to fight Diyuan alongside him. 269 280
• Luo Feng — Yu Duan's disciple; consults Yu Duan before acting against Great Sage Tianhe. 223 280
• Tianran — intelligent assistant and spaceship AI; assists with training, purchases, navigation, and administration. 19 92
• Tu Yu — guard commander and brotherly subordinate; oversees Yu Duan's residence and recognizes his advancement. 77 98

Story Role / Major Arcs

Beiming Sacred Land Arc

Yu Duan joins the Beiming Sacred Land, receives Yan Lun's support, and rises rapidly through the Star Level rankings. Qinghuan King becomes his teacher, while Ku Mixiu refines his swordsmanship and exposes the weakness in his movement techniques. 11 25 27 28

Primal Secret Realm Arc

After entering the Primal Secret Realm, Yu Duan clears successive levels of the Myriad Universe Heavenly Bridge, studies the Chaos Tablet, and becomes the number one Universe Level member of the realm. 62 75 96

Xueluo World Arc

Yu Duan endures the Dragon Blood Pool transformation, obtains the Third Pupil, infiltrates Xueluo World, and fuses ten Xueluo Crystals to become a Universe Level Black Warrior. 87 88 91

Outer Battlefield Arc

Armed with King Level authority, Yu Duan enters the Third Outer Battlefield. He develops Juejue, hunts high-level Immortals, enslaves King Level soul masters, and becomes known as Star Sword King. 121 127 137 139

Universe Ocean Arc

As a Universe Master, Yu Duan cultivates under extreme willpower pressure in the Black Pattern Stone Pillar region, repairs the River of Life, and claims a cultivation territory for human Universe Masters. 179 199 204

Origin Continent Arc

Yu Duan masters the Universe Boat and enters the Origin Continent. He advances through the Eternal True God and Chaos Realm stages, defeats Great Sage Yunqiong, becomes Feng Xi's disciple, and later reaches the God King and Ultimate Realm levels. 252 257 266 271 273

Trivia

• Yu Duan calls his intensive cultivation routine “grinding.” 19
• Tianran once wondered whether he genuinely enjoyed being tortured by his training regimen. 19
• Qinghuan King valued Yu Duan's character, willpower, and comprehension more than innate law talent. 25
• Yu Duan jokingly considered calling Qinghuan King the “King of Connections” because of his extensive network of powerful associates. 91