Yu Xiaogang

Biodata

Background / History

Yu Xiaogang is the son of the Blue Lightning Tyrant Dragon Clan’s head, whom he identifies as a level-95 Power Attack System Titled Douluo. His Martial Soul mutated into Luo Sanpao, leaving him unable to advance beyond level 29. The clan’s contempt for him became a central motive behind his desire to establish himself as an unrivaled theorist 4 22.

He presented the Ten Core Competencies of Martial Soul as the product of decades of research. However, his supposed discoveries were drawn from Spirit Hall records accessed through personal connections with its upper ranks. Su Chen publicly exposed this appropriation, and the Destiny Plunder System confirmed the academic theft 4 10.

Before recruiting Tang San, Yu Xiaogang already had connections with both Nuoding Academy and Shrek Academy. Flender, Shrek’s dean in Suotuo City, was his friend and sworn brother; Yu Xiaogang also claimed an old acquaintance with Spirit Hall’s pope, Bibi Dong 4 22 25.

He avoided Liu Erlong for twenty years, having vowed to nurture the finest disciple and prove his theories unrivaled before openly appearing before the world again. After the destruction of his reputation and the deterioration of Shrek’s circumstances, he reluctantly agreed to seek assistance at her Blue Tyrant Academy in Heaven Dou City 58.

Following Xue Xing’s seizure of the throne, Yu Xiaogang joined the new regime. Through the military authority of his second uncle, Yu Luomian, he obtained a legion commander’s post and sought to replace his ruined scholarly reputation with renown as a military strategist 96.

Appearance

• Initial appearance: A middle-aged man in a black robe, with a stiff, expressionless face and a low, hoarse voice. He frequently stands with his hands clasped behind his back 3 4.
• Clothing: Later wears gray robes and an old cloth robe washed almost white 9 12.
• Physique: Gaunt, with dark-purple welts across his torso after suffering Martial Soul backlash 22.
• Lasting disability: Uses a specially made wheelchair after Tang Hao crushes both knees 22 25.
• Later condition: Increasingly withered and pale, often coughing or bleeding following repeated injuries 25 38.
• Complete lower-body paralysis: After the Star Dou Great Forest clash, both legs’ bones are described as completely pulverized and his meridians severed inch by inch. He loses all sensation in his lower body and is transported lying on straw-padded boards 58.
• North Wind Canyon injuries: Suffers a raw, bloody facial scrape when his armored command carriage overturns and throws him onto oil-covered gravel 97.

Personality

Yu Xiaogang cultivates the image of a detached, authoritative scholar, but his ambitions are rooted in resentment over his weak Martial Soul and stagnant cultivation. He wants a successful disciple to prove his worth to the continent and to the clan that despises him. Before meeting the prospective students, he plans to rescue them from the academy gatekeeper so their gratitude will make them easier to recruit as subjects for his theories 3 4.

His pride makes criticism intensely personal. Su Chen’s exposure of Luo Sanpao and the level-29 bottleneck provokes rage, while later challenges to his theories deepen his fixation on revenge. Even after witnessing results that contradict his teachings, he insists that Su Chen’s cultivation must eventually destroy him 4 18 30.

Self-preservation overrides his responsibilities as a teacher. He abandons Tang San during a lethal Soul Beast attack, then recasts his flight as a self-sacrificing attempt to obtain help. He also portrays Tang San’s inferior First Soul Ring as a theoretical success rather than acknowledge the damage to his disciple’s development 14 18 20.

His dependence on others eventually forces him to compromise his pride. When Flender confronts him over the suffering of their companions and the need for Liu Erlong’s resources, Yu Xiaogang agrees to approach Blue Tyrant Academy, but asks that no one recognize him at first 58.

As a legion commander, he retains his habitual lecturing manner while justifying forced submission to Xue Xing as obedience to the prevailing political tide. He holds exhausted academy students as bait for a lethal ambush, privately anticipating that burning fleeing Soul Masters to death will establish him as a military genius 96.

His composure again collapses when directly threatened. After Su Chen overturns his command vehicle, he cries out for Liu Erlong and Flender to save him and becomes too terrified to cooperate in manifesting the complete Golden Sacred Dragon 97.

Abilities & Skills

Luo Sanpao

Luo Sanpao manifests as a separate, four-legged creature resembling a fat pig or pig-dog 13 25.

• Distinguishing features: Oversized ears, a stubby tail, and a round body that expands before attacking 13 14.
• Tracking: Sniffs the undergrowth while Yu Xiaogang searches for Soul Beasts 13.
• Soul Skill — Earth-Shattering Luo Sanpao: Releases a thunderous blast of foul yellow gas carrying a shock wave; its later use is described as poisonous 14 25.
• Backlash: Forcible destruction of Luo Sanpao causes Yu Xiaogang severe internal injuries and blood loss 14 25.
• Combat limitations: The three-thousand-year Dark-Armored Bloodhorn Dragon destroys Luo Sanpao, while Su Chen later incinerates its gas attack and shatters it with rebounding force 14 25.
• Not permanently destroyed: Despite being dispersed in the Soul Hunting Forest, Luo Sanpao is summoned again six years later 14 25.
• Earlier defeat: The four-hundred-year Mandala Snake also breaks through its gas shock wave and disperses Luo Sanpao with a tail strike 13.

Martial Soul Theory

Yu Xiaogang’s teachings address awakening, Soul Ring combinations, Martial Soul Mimicry, and absorption limits. His most convincing demonstrated deduction is identifying Tang San’s Twin Martial Souls from an awakening certificate showing Blue Silver Grass and Innate Full Soul Power 4 9.

Soul Beast Knowledge

• Habitat knowledge: Knows that Mandala Snakes favor cold, damp areas and conceal themselves beneath rotting leaves 13.
• Identification failure: Mistakes a three-thousand-year Dark-Armored Bloodhorn Dragon for a roughly five-hundred-year mutated Thick-Armored Crocodile, leading to a disastrous attack 14.
• Soul Bone recognition: Immediately recognizes the external Soul Bone dropped by a two-thousand-year Man Faced Demon Spider and understands its potential to grow alongside its owner 43.
• Ancient records: Claims knowledge of a mutated beast capable of reshaping meridians and devouring life force near the boundary of the Star Dou Great Forest’s outskirts and core 38.

Team Instruction

• Trains a Shrek Team tactical formation and expects Tang San’s battlefield control and hidden weapons to complement Dai Mubai and Ma Hongjun’s assaults 34.
• Issues a full-team deathmatch challenge against the Dragon God Team to restore his reputation 34.
• His formation fails to secure victory; seeing Tang San lose the use of both arms during the match causes him to vomit blood and faint 36.

Martial Soul Fusion

• Golden Sacred Dragon: Can cooperate with Liu Erlong and Flender to manifest the complete Golden Sacred Dragon. At North Wind Canyon, his terror prevents the necessary cooperation, so the complete fusion does not form 97.
• Fallback by his companions: Liu Erlong and Flender instead burn their Soul Saint origins to perform Two-Horned Soul Fusion, Crimson Dragon Rends the Heavens, producing a crimson fire dragon with incomplete wings to intercept Su Chen 97.

Military Command

• Command authority: Obtains a legion commander’s position through Yu Luomian’s control of the Imperial City’s military forces 96.
• North Wind Canyon deployment: Commands three thousand cavalry and conceals eight hundred elite archers and crossbowmen on the cliffs, supported by rolling logs, stones, and more than three hundred barrels of fierce fire oil 96.
• Bait-and-rescue ambush: Keeps Shui Bing’er and the other six Skywater Academy girls alive to attract fleeing academy Soul Masters or Seven Treasure Glazed Tile Sect personnel. His planned killing zone exploits the canyon’s gourd-shaped terrain 96.
• Operational failure: Su Chen detects the concealed forces before entering the trap and turns the prepared fire oil against Yu Xiaogang’s own troops, transforming the formation into a fire pit 96 97.

Power Progression

Equipment / Items

• Six-emblem token — Produces it when approaching the Soul Hunting Forest checkpoint 12.
• Short blade — Uses it to sever the dying Deadwood Vine’s root and obtain Tang San’s First Soul Ring 18.
• Wheelchair — Uses specially made wooden and iron wheelchairs after his legs are crippled 25 35.
• Medicinal ointment — Applies it to injuries caused by Luo Sanpao’s destruction 22.
• Command Parchment — Gives this document to Tang San shortly after accepting him as a disciple 7.
• Realgar powder — Scatters it against the Mandala Snake, but the enraged beast ignores its irritation 13.
• Armored command carriage — Carries his specially made wheelchair while he directs the North Wind Canyon operation; overturned by the gale from Su Chen’s dragon wing 96 97.
• Blood contract of surrender — Holds a contract stamped with Xue Xing’s imperial seal and demands that the Skywater Academy girls sign it in blood to accept appointments under the new regime 96.

Relationships

• Tang San — Disciple and intended proof of his theories. Tang San initially reveres him after the Twin Martial Soul deduction, but secretly resolves to kill him following his abandonment and the Deadwood Vine ring. Outward cooperation continues because Tang San still needs assistance 4 18. After Tang Hao takes Tang San to Slaughter City, Yu Xiaogang worries over his unknown fate but continues imagining that his disciple will eventually avenge him against Su Chen and Spirit Hall 58.
• Su Chen — Rejected prospective disciple and principal adversary. Su Chen exposes his cultivation limitations and plagiarism, contradicts his absorption rules, and repeatedly defeats him and his students 4 10 16 25 36. Their conflict later extends to North Wind Canyon, where Su Chen detects and reverses his military ambush 96 97.
• Tang Hao — Tang San’s father and the Clear Sky Douluo. Cripples Yu Xiaogang for abandoning and damaging Tang San, but spares him to shield his son from outside scrutiny 22.
• Flender — Friend and sworn brother. Accepts responsibility for the injured Tang San because of his connection with Yu Xiaogang and the disciple’s Twin Martial Souls 22 25 31. Later rebukes Yu Xiaogang for putting his pride above their companions’ survival and persuades him to seek Liu Erlong’s help. Stands guard beside him at North Wind Canyon and attempts to defend him after his command carriage overturns 58 96 97.
• Bibi Dong — An old acquaintance whom Yu Xiaogang invokes while pleading for his life before Tang Hao 22.
• Yu Luomian — Blue Lightning Tyrant Dragon Clan second-in-command. Rescues him from the collision of Titled Douluo auras and carries him away unconscious 45. Subsequently abandons him outside Suotuo City in disgust at the shame he has brought upon the clan. Later identified as his second uncle, whose military authority enables his appointment as legion commander 58 96.
• Unnamed father — Head of the Blue Lightning Tyrant Dragon Clan and a level-95 Titled Douluo; Yu Xiaogang invokes his standing as another reason Tang Hao should spare him 22.
• Luo Sanpao — Mutated Martial Soul that has accompanied him for half his life; its repeated destruction inflicts severe backlash on him 14 25.
• Liu Erlong — Founder of Blue Tyrant Academy, whom he has avoided for twenty years. Flender urges him to rely on her resources and willingness to help when their group becomes destitute 58. She later guards him at North Wind Canyon and joins Flender in a desperate fusion attack to protect him 96 97.
• Yu Tianheng — Addresses Yu Xiaogang as uncle and serves alongside him at North Wind Canyon, offering to lead troops against Skywater Academy’s defensive ice shield 96.
• Xue Xing — Usurping emperor whom Yu Xiaogang serves as a legion commander. Yu Xiaogang promotes his academy-reorganization policy and uses an imperial-sealed blood contract to demand the Skywater students’ allegiance 96.
• Shui Bing’er and the Skywater Academy team — Targets of his forced-recruitment operation and bait for his canyon ambush. Shui Bing’er and Shui Yue’er reject his demand for submission and denounce the usurping regime and the Blue Lightning Tyrant Dragon Clan’s complicity 96.

Story Role / Major Arcs

Nuoding Academy: Recruitment and Exposure

• Watches the academy entrance, intending to intervene against the gatekeeper and gain the gratitude of promising commoner students. Su Chen resolves the confrontation before he can act 3.
• Attempts to recruit Su Chen after discovering his innate level-20 Soul Power. Su Chen instead publicly exposes Luo Sanpao and his level-29 bottleneck 4.
• Rebuilds his confidence by correctly identifying Tang San’s Twin Martial Souls and accepting him as a disciple 4.
• Confronts Su Chen after Tang San reports being attacked. The dispute becomes a public exposure of his theories and plagiarism; Su Chen’s dragon voice damages his heart meridian, and he faints 9 10.

Soul Hunting Forest: Abandonment and the Deadwood Vine

• Takes Tang San into the forest overnight, intending to obtain a Mandala Snake ring and vindicate his Mimicry Theory 12.
• Misidentifies the Dark-Armored Bloodhorn Dragon, loses Luo Sanpao to its counterattack, and flees while ordering his injured disciple to hold it off 14.
• Returns after the outer garrison refuses to enter the forest’s core. He discovers Su Chen with two purple rings and the intended Mandala Snake already dead 17.
• Persuades the gravely injured Tang San to absorb a ten-year Deadwood Vine ring. The breakthrough stabilizes Tang San’s injuries but leaves his Blue Silver Grass withered, cementing his concealed hatred of his teacher 18.

Public Disgrace and Tang Hao’s Punishment

• Returns to Nuoding Academy and defends Tang San’s condition as “Origin-Matched Mimicry” and “Withered Stillness Mutation.” The white ring and crumbling grass instead make both teacher and disciple objects of ridicule 20 22.
• Begins writing to Flender, framing the outcome as an unknown adverse mutation caused by external stimuli 22.
• Is attacked by Tang Hao, who crushes his knees and forbids him from treating Tang San as a theoretical test subject again 22.

Six Years Later: Shrek and the Deathmatch

• Joins Tang San in a two-sided ambush against Su Chen. The attack fails, Luo Sanpao is shattered again, and he urges Tang San to seek Flender’s protection in Suotuo City 25.
• Arrives at Shrek with the injured Tang San and witnesses further humiliation during Su Chen’s confrontation with Zhao Wuji 30 31.
• Challenges the Dragon God Team to a deathmatch. Shrek’s defeat and Tang San’s ruined arms cause him to lose consciousness in his wheelchair 34 35 36.

Star Dou Great Forest: Final Documented Rescue

• Proposes following Su Chen into the forest to seize an opportunity that could restore Tang San’s meridians, relying on Flender and Zhao Wuji’s strength 38 39.
• Recognizes the Man Faced Demon Spider’s external Soul Bone as a potentially transformative treasure 43.
• Suffers ruptured eardrums and shattered ribs beneath the clash between Tang Hao and Yue Guan. Yu Luomian intervenes and escapes with him unconscious 45.
• The aftermath leaves his lower body completely paralyzed, with pulverized leg bones and extensively severed meridians. Yu Luomian abandons him outside Suotuo City rather than continue caring for him 58.

Journey to Heaven Dou City: Swallowing His Pride

• Travels with Shrek’s battered remnants in a shabby donkey cart, lying on dry grass over wooden boards. Their remaining money has been spent on medicine to keep Zhao Wuji alive, preventing them from obtaining faster transport 58.
• Continues cursing Su Chen and Spirit Hall and hopes Tang San will eventually destroy them, despite knowing that Tang Hao has taken his disciple to Slaughter City 58.
• Reacts with disbelief when Flender reports that Su Chen has crushed Yu Tianheng’s arm and won over Dugu Yan and Ye Lingling 58.
• Reluctantly agrees to seek Liu Erlong’s help at Blue Tyrant Academy after Flender angrily confronts him over the cost of his pride. Requests that his identity initially remain concealed on reaching Heaven Dou City 58.

Xue Xing’s Regime and the North Wind Canyon Ambush

• Joins Xue Xing’s usurping regime and obtains a legion command through Yu Luomian. Plans to establish a new reputation as a military genius by destroying fugitives from Heaven Dou City 96.
• Besieges Shui Bing’er and six other Skywater Academy girls with three thousand cavalry while concealing eight hundred archers and crossbowmen, rolling logs, stones, and more than three hundred barrels of fierce fire oil on the canyon cliffs 96.
• Demands that the girls sign an imperial-sealed blood contract and accept incorporation into the regime’s garrison forces. Secretly keeps them alive as bait for rescuers, particularly fleeing academy personnel or members of the Seven Treasure Glazed Tile Sect 96.
• Su Chen sees through the deployment and approaches from the southern entrance with Qian Renxue, Xiao Wu, Zhu Zhuqing, Ning Rongrong, Dugu Yan, and Ye Lingling 96.
• Su Chen turns the prepared fire oil against the soldiers, transforming Yu Xiaogang’s ambush into an inferno that engulfs his cavalry formation 97.
• After striking Yu Tianheng, the gale from Su Chen’s dragon wing overturns Yu Xiaogang’s armored command carriage. He is thrown to the ground, scrapes his face bloody, and cries out for Liu Erlong and Flender to save him 97.
• His terror prevents the complete Golden Sacred Dragon fusion. Liu Erlong and Flender instead burn their Soul Saint origins to form an incomplete-winged crimson fire dragon and attempt to intercept Su Chen 97.

Notable Quotes

“There are only useless Soul Masters in this world!” 9

“Little San... h-hold it off! I'll find a Spirit Hall patrol and bring them back to save you!” 14

“In the name of the Shrek Team, I challenge the Dragon God Team to a full-team deathmatch! Tonight, in the Central Main Soul Fighting Arena! Be there!” 34

“Go... let's go to Blue Tyrant Academy... when we reach Heaven Dou City... don't let anyone recognize me at first...” 58

“Help! Erlong, Flender, save me!!” 97

---