Contents
- 1Biodata
- 2Power Progression
- 3Background / History
- 4Appearance
- 5Personality
- 6Abilities & Skills
- 6.1Martial Soul Theory
- 6.2Luo Sanpao
- 6.3Golden Sacred Dragon
- 6.4Training and Team Instruction
- 7Relationships
- 8Story Role / Major Arcs
- 8.1Sky Screen Punishment
- 8.2Tang San's Recruitment at Nuoding Academy
- 8.3Shrek Academy Instructor
- 8.4Conflict with Tang Chuan
- 8.5Reunion and Transfer to Lanba Academy
- 8.6Visit to Martial Soul City
- 8.7Later Reputation and Military Role
- 8.8Refusal of God Realm Ascension
- 8.9Rebuilding the Blue Lightning Tyrant Sect and Imprisonment
- 8.10Descendant Revelation and Future Shrek Legacy
- 8.11Renewed Disputes over His Methods
- 9Trivia
Biodata
| Feature | Value |
|---|---|
| Name | Yu Xiaogang (玉小刚) |
| Alias(es) | Grandmaster; “Clown Grandmaster” (derogatory); “Gangzi” (mocking nickname). 22 534 568 |
| Gender | Male |
| Affiliation | Nuoding Academy; Shrek Academy; later associated with Heaven Dou Royal Academy; later rebuilds the Blue Lightning Tyrant Sect in the original future |
| Occupation/Role | Martial soul theory teacher; mentor and trainer |
| Title(s) | Blue Lightning King; Chief Imperial Soul Master; commander of the Heaven Dou Soul Master Regiment in comparison footage of the original future. 379 380 |
| Martial Soul | Luo Sanpao; reduced to a pink Pig Beast after the Comparison Sky Screen extracts its Golden Sacred Dragon Martial Soul Origin. 7 25 |
| Innate Soul Power | Half a rank. 86 504 |
| Family | Yu Yuanzhen (father); Liu Erlong (first cousin and lover); Yu Tianheng and Yu Tianxin (nephews); Bei Bei (identified as his descendant in the Peerless Tang Sect era). 22 85 504 534 |
| Status | Alive; later imprisoned in Spirit City Prison in the original future |
| First Appearance | Chapter 4 |
Power Progression
| Stage / Realm / Level | Chapter | Notes |
|---|---|---|
| Level 29 Soul Grand Master | 25 | Unable to break through to level 30; attributes his stalled cultivation to the degraded mutation of Luo Sanpao. |
| Level 30 Soul Elder | 89 180 | In the original future, Tang San gives him the Nine-Grade Purple Ganoderma, allowing him to finally overcome the level-30 bottleneck. His breakthrough is also mentioned before the soul-ring hunt accompanying Dai Mubai. |
| Soul Ancestor | 267 | After consuming the Nine-Grade Purple Ganoderma and breaking through level 30, he later reaches Soul Ancestor; this strengthens the Golden Sacred Dragon fusion skill. |
Background / History
Yu Xiaogang is the son of Thunder Douluo Yu Yuanzhen. His martial soul failed to awaken into the powerful form expected of his lineage, instead becoming the degraded mutated Luo Sanpao; he was consequently regarded as a laughingstock. 22
He is Yu Yuanzhen's youngest son and possesses only half a rank of innate soul power. These limitations contribute to his poor standing within the Blue Lightning Tyrant Sect and his determination to establish himself through theoretical research rather than cultivation. 22 86
Unable to advance beyond level 29 for a long period, he turned toward martial soul theory. He proposed the Ten Core Competencies of Martial Soul and the Soul Ring Absorption Limit Theory, seeking recognition as a master of martial soul theory. His work is repeatedly criticized as common knowledge, self-contradictory statements, or incomplete and dangerous data. 22 134
More than twenty years before the main events, Yu Xiaogang met Flender and Liu Erlong while traveling to prove himself. The three swore brotherhood. Yu Xiaogang and Liu Erlong later developed feelings for one another, but he withdrew after learning they were cousins within three generations; he avoided her for roughly twenty years. 85
At Nuoding Academy, Yu Xiaogang encountered Tang San, identified his unusual potential, and pressed to become his teacher. Tang San ultimately knelt and accepted him as master, giving Yu Xiaogang the gifted disciple he believed could validate his theories. 21 22 Yu Xiaogang later became deeply invested in Tang San's rise, both out of their master-disciple bond and because Tang San's success could establish his reputation. 21 56
He also attempted to recruit Tang Chuan at Nuoding Academy but was questioned about his personal accomplishments and refused. This rejection becomes a lasting source of resentment, particularly after Tang Chuan's exceptional growth. 29 99
The Comparison Sky Screen's revelation of Tang San's past initially troubles Yu Xiaogang, who worries that an immoral disciple could damage the reputation he hopes Tang San will establish for him. He ultimately chooses to overlook Tang San's history, partly because he feels guilty over his own past actions. 4
Later footage of the Peerless Tang Sect era identifies Bei Bei as Yu Xiaogang's descendant. The revelation provokes speculation that Yu Xiaogang and Liu Erlong had children despite their close blood relationship; the provided account does not establish the intervening genealogy. 534
Appearance
Yu Xiaogang is a thin, middle-aged man with a rigid, melancholy bearing and an unkempt scholarly appearance. 20
- Usually wears a black scholar's robe. 20 24
- Has a short crew cut and a face covered in stubble. 20
- Commonly stands with his hands behind his back. 20 68
- His expression is frequently described as stiff or rigid. 20 21
- By Tang San's farewell visit before ascending to the God Realm, his hair has turned gray and his face has visibly aged, though he remains fairly vigorous. 501
- His commemorative statue at the future Shrek Academy depicts him as middle-aged, alongside statues honoring Flender, Liu Erlong, and the original Shrek Seven Devils. 548
Personality
Yu Xiaogang craves recognition as a legitimate master of martial soul theory. He sees training a future powerhouse—especially a future god—as the clearest way to prove his worth, and his desire for this validation strongly shapes his decisions. 21 56 99
He presents himself as composed, humble, and insightful, but privately displays pride, jealousy, resentment, and insecurity. He is especially envious of his Black World counterpart for successfully accepting Tang San, and of Tang Chuan for achieving greatness without accepting him as master. 21 23 40
After Tang San suffers an overwhelming voting defeat, Yu Xiaogang consoles him with statements such as “truth is always in the hands of the few” and “the strong always walk alone.” Rather than encouraging him to reconsider the criticism, he presents their unpopularity as evidence that they are misunderstood. 41
Yu Xiaogang's pursuit of validation can outweigh his concern for caution or impartial instruction. He brings Tang San alone into the Soul Hunting Forest partly to ensure that no one challenges his Martial Soul Mimicry Theory or prevents Tang San from following the animal-type soul-ring path he selected. 25 26
Despite his self-interest, Yu Xiaogang shows concern for Tang San's welfare: he provides food and bedding, guides him through early soul-master knowledge, improves Shrek Academy's meals, and seeks information to protect Tang San from the risks associated with Twin Martial Souls. 24 25 67 136 Tang San's long-standing loyalty causes Yu Xiaogang to overlook the occasions when Tang San nearly attacked him. 21 22
He is highly sensitive to public scrutiny of his theories and accomplishments. When Tang Chuan's military strategies and broader abilities are proven superior to his own claims, Yu Xiaogang is left humiliated, unable to refute the evidence, and deeply despondent. 390 402 403
In the original future, Yu Xiaogang's concern for reputation also governs his response to Tang San's offer to bring him and Liu Erlong to the God Realm. Although he desires ascension, he publicly refuses because accepting a place that Ma Hongjun had requested for Bai Chenxiang would damage his image; Tang San subsequently leaves without them. 501
After Qian Renxue has him captured, Yu Xiaogang proves powerless in the face of overwhelming force. His public humiliation and terrified collapse in Spirit City Prison leave his long-guarded dignity and reputation effectively destroyed. 505 506
His devotion to the Blue Lightning Tyrant Sect nevertheless persists despite his earlier ostracism. His efforts to restore the sect earn Yu Yuanzhen's approval, as his father recognizes his loyalty and sense of belonging despite his poor cultivation talent. 504
Later, Yu Xiaogang increasingly blames outside circumstances for his failures. He attributes his inability to improve Luo Sanpao to Spirit Hall's failure to make Soul Master knowledge freely available, rejects Tang Chuan's assessment that the martial soul had undeveloped potential, and continues to invoke Tang San's godhood as proof of his teaching ability. 561 568 578
His attitude toward Tang San also becomes openly resentful. He regrets supporting him in the vote that cost Luo Sanpao its Golden Sacred Dragon essence and believes that his disciple deliberately abandoned and humiliated him. 561
Abilities & Skills
Martial Soul Theory
Yu Xiaogang is known for his martial soul theories, particularly the Ten Core Competencies of Martial Soul and the Soul Ring Absorption Limit Theory.
- Uses theoretical knowledge to identify Tang San's Twin Martial Souls and Innate Full Soul Power. 21 22
- Bases this deduction on his claimed study of 647 Blue Silver Grass martial-soul possessors and his first core competency regarding innate soul power and martial soul quality. 21
- Advocates a Martial Soul Mimicry Theory and guided Tang San toward animal-type soul rings for Blue Silver Grass. 56 90
- His theories are challenged for flawed premises, contradictions, and omissions, including his lack of knowledge about Soul Shock. 22 89 90
- His stated absorption limits are contradicted when Tang San successfully absorbs a two-thousand-year third soul ring beyond the listed limit. 67
- His initial assessment of Tang San's Blue Silver Grass is further challenged by the principle that Twin Martial Souls must be of similar quality, implying that Tang San's first martial soul could not have been ordinary Blue Silver Grass. 135
- His Seven-in-One Fusion Skill is accused of being copied from Shi Nian's research, and later comparison footage reveals that he did not actually teach the skill to the Shrek team as claimed. 135 136 142 143
- Ning Fengzhi acknowledges that some material included in the Ten Core Competencies is useful, such as the accumulation of soul power while a cultivator remains at a soul-ring bottleneck, but attributes that research to Martial Soul Hall. 44
- His deduction of Tang San's Twin Martial Souls is later revisited in footage watched by Tang Ya and Bei Bei: although the conclusion was correct, its reasoning is exposed as flawed, further undermining his reputation. 545
- Tang Ya later criticizes the inherited Blue Silver Grass cultivation direction associated with Yu Xiaogang and Tang San after learning how Tang Chuan's meditation method and life-type plant soul rings improve cultivation and martial soul origin. Yu Xiaogang refuses to accept that his guidance was inferior. 578
Luo Sanpao
Yu Xiaogang's martial soul is Luo Sanpao, a degraded mutated martial soul derived from the Blue Lightning Tyrant Dragon line. 25
- Possesses a physical body and consumes food, including the white radishes Yu Xiaogang prepares for it. 25
- Yu Xiaogang considers it the primary reason his cultivation stagnated below level 30. 25
- Its Golden Sacred Dragon Martial Soul Origin is stripped by the Sky Screen as punishment for Yu Xiaogang's dishonest vote. 7
- Following the punishment, Luo Sanpao's form degenerates into a pink Pig Beast martial soul. 7
- The martial soul is later involved in the three-person Golden Sacred Dragon fusion skill in footage of the original future. 86 267
- Tang Chuan proposes that its physical body, independent intelligence, and Golden Sacred Dragon bloodline may offer unusual development opportunities: feeding it spiritual herbs or light-attribute dragon flesh and blood, or teaching it to cultivate independently. These are proposed possibilities rather than advancements Yu Xiaogang is shown achieving. 86
- Yu Xiaogang envies Tang Chuan's Thunder Roaring Hell Vine external soul bone, believing that a similar lightning-attributed treasure might have allowed Luo Sanpao to evolve into a Blue Lightning Tyrant Dragon. 48
- When its potential is discussed again, Yu Xiaogang insists that years of research produced no workable improvement beyond feeding it additional white radishes to strengthen its soul skills. 568
Golden Sacred Dragon
Yu Xiaogang can join Flender and Liu Erlong in a three-person Martial Soul Fusion Skill that transforms their martial souls into the Golden Sacred Dragon. 86
- Requires the combined martial souls of Yu Xiaogang, Flender, and Liu Erlong. 86
- The fusion produces a massive golden-scaled dragon with formidable destructive power. 86
- After Yu Xiaogang reaches Soul Ancestor, its attack is substantially strengthened. 267
- Its “Golden Great Fart” attack is powerful enough to inflict widespread damage during the assault on Shrek Academy. 267
- The use of this attack enrages Di Tian, Zi Ji, and Scarlet King, who order that Yu Xiaogang be killed if he enters the Star Dou Great Forest. 267
- Despite its power, the fusion is effortlessly shattered by Golden Crocodile Douluo's Golden Crocodile King Avatar when Yu Xiaogang, Flender, and Liu Erlong attempt to resist Yu Xiaogang's capture. 505
Training and Team Instruction
Yu Xiaogang assumes responsibility for training the Shrek students and emphasizes physical conditioning, teamwork, sparring, and nutrition. 67 68
- Replaces Shrek's poor meals with meat soup, steamed buns, and eggs to improve the students' nutrition. 67 68
- Conducts baseline sparring assessments and critiques the students' weaknesses. 68
- Uses weighted running to develop endurance and cooperation among the Shrek Seven Devils. 68
- Develops a Seven-in-One Fusion Skill for the Shrek team, though it is accused of being copied from Shi Nian's research. 135 136 142
- His recurring training methods are criticized as mediocre, inefficient, and inferior to more specialized approaches. 68 172
- In the original future, he is tasked with training more than four thousand soul masters sent by the Heaven Dou Imperial Family and belatedly employs Zhao Wuji's gravity soul skill to assist the program. 172
- When challenged to personally endure the gravity training, he appears prepared to participate but lets Tang San assume the burden in his place. 172
- In the White World's original future, he uses Heaven Dou Royal Academy's superior cultivation facilities to devise new study plans and training tasks after Shrek's temporary merger with the academy. 105
Relationships
- Tang San — Disciple; Yu Xiaogang sees Tang San as both a cherished student and the means to prove his standing as a master of martial soul theory. Tang San publicly remains loyal even as doubts emerge about Yu Xiaogang's knowledge. 21 22 56 90 However, later comparison footage reveals that Tang San regards Yu Xiaogang as having used him as a test subject for martial soul theories and only maintains the appearance of filial respect before ascending to the God Realm. 501 506 Yu Xiaogang initially accepts Liu Erlong's explanation that Tang San merely misunderstood him and wishes to explain himself, but later regrets his support for Tang San and believes his abandonment was deliberate. 502 561 In the Peerless Tang Sect era, Tang San mockingly calls him “Gangzi” and treats Bei Bei's service to the Tang Sect as repayment for Yu Xiaogang's alleged mistreatment of him. 534
- Tang Chuan — Rejected Yu Xiaogang's offer of apprenticeship at Nuoding Academy. Yu Xiaogang resents him and later tries to use Ma Hongjun to prove Tang Chuan made a mistake. 29 99 100 He angrily rejects Tang Chuan's view that Luo Sanpao possessed significant undeveloped potential, arguing that Tang Chuan has never experienced his circumstances and might have fared no better. 568
- Bibi Dong — Former close connection and admirer. Yu Xiaogang invokes their past friendship while persuading Tang Hao that she will not harm Tang San; Bibi Dong remains fiercely protective of him. 8 56 134 When he later seeks the secret to safely cultivating Twin Martial Souls, she refuses to provide it, and their reunion exposes the volatility of their unresolved feelings. 136 137
- Liu Erlong — Former sworn sibling and lover. Their relationship is complicated by their close blood relation, leading Yu Xiaogang to separate from her for decades. 85 She remains devoted to him after his eventual capture and public disgrace, but is unable to prevent Golden Crocodile Douluo from taking him away. 505 506 She is delighted by the revelation that Bei Bei descends from him, despite the scandal others infer from it, and continues defending his research and teaching against later criticism. 534 561 568 578
- Flender — Sworn brother and longtime supporter. Flender believes in Yu Xiaogang and assists his work at Shrek Academy. 26 68 He and Liu Erlong attempt to resist Yu Xiaogang's arrest through the Golden Sacred Dragon fusion skill, but are decisively defeated. 505 He also defends Yu Xiaogang when later footage questions his failure to develop Luo Sanpao. 568
- Ma Hongjun — Disciple in the White World's original future; Yu Xiaogang mentors him, strengthens his Evil Fire, and attempts to push him into challenging Tang Chuan. 99 101
- Tang Hao — Yu Xiaogang persuades him to leave Tang San at Shrek Academy, arguing that changing Tang San's path could prevent his future godhood. 56
- Yu Yuanzhen — Father and the Thunder Douluo of the Blue Lightning Tyrant Sect. Yu Xiaogang's degraded martial soul and low innate soul power made him a source of ridicule within his father's sect. 22 Yu Yuanzhen later takes pride in his efforts to rebuild the sect, but reacts with fury and shame when Bei Bei's ancestry raises the possibility that Yu Xiaogang had children with Liu Erlong. 504 534
- Qian Renxue — Qian Renxue holds Yu Xiaogang responsible for the collapse of her parents' relationship and the misery of her childhood, due to his past connection with Bibi Dong. After learning the circumstances surrounding Bibi Dong and Qian Xunji, she orders Golden Crocodile Douluo to seize Yu Xiaogang and subjects him to a cruel prison punishment. 504 505
- Golden Crocodile Douluo — As Qian Renxue's enforcer, Golden Crocodile Douluo destroys Yu Xiaogang's Golden Sacred Dragon fusion, knocks him unconscious, and transports him to Spirit City Prison. 505
- Fenos — Dean of Nuoding Academy and Yu Xiaogang's acquaintance. Yu Xiaogang avoids involving him in Tang San's first soul-ring hunt to prevent interference with his theories. During the second hunt, Fenos openly recommends a plant-type soul ring instead of Yu Xiaogang's preferred venomous animal-type ring. 24 26 44
- Yu Tianheng and Yu Tianxin — Nephews who accompany him and the surviving clansmen back to Blue Tyrant Mountain to rebuild the Blue Lightning Tyrant Sect. 504
- Bei Bei — Identified by the God Realm–era Tang San as Yu Xiaogang's descendant. Bei Bei later becomes disillusioned with the historical glorification of Yu Xiaogang after watching the comparison expose the flawed reasoning behind his diagnosis of Tang San's Twin Martial Souls. 534 545
- Tang Ya — A later inheritor of the Tang Sect's Blue Silver Grass cultivation tradition who publicly condemns Yu Xiaogang's guidance after learning of Tang Chuan's superior methods. Yu Xiaogang responds with anger and privately blames her shortcomings on herself rather than his cultivation approach. 578
Story Role / Major Arcs
Sky Screen Punishment
After the Comparison Sky Screen exposes Tang San's former life, Yu Xiaogang is disturbed by the possible effect Tang San's conduct may have on his own reputation. He nevertheless decides to ignore the matter because of his own guilt and need to preserve their master-disciple relationship. 4
Yu Xiaogang is subsequently punished for voting against his conscience. Luo Sanpao's Golden Sacred Dragon Martial Soul Origin is extracted before his eyes, leaving the martial soul reduced to a Pig Beast form and causing Yu Xiaogang to collapse unconscious in agony. 7
Much later, he regrets voting for Tang San because of the loss of this essence. His regret is compounded by the revelation that the disciple whose future he supported would eventually abandon and humiliate him. 561
Tang San's Recruitment at Nuoding Academy
Yu Xiaogang intervenes when Tang San threatens the Nuoding Academy gatekeeper and nearly targets Yu Xiaogang himself with a Sleeve Arrow. He inspects Tang San's martial soul certificate, recognizes his potential, and persuades him to enter a master-disciple relationship. 20 21 22
He accompanies Tang San to the Soul Hunting Forest for his first soul ring, teaching him about soul beasts and soul rings while using the trip to advance his theoretical approach. 24 25
Yu Xiaogang intentionally avoids bringing Nuoding Academy's dean, Fenos, on the hunt because outside opposition could interfere with his plan to have Tang San validate the Martial Soul Mimicry Theory by absorbing an animal-type soul ring. 25 26
When Tang San reaches level 20 more than two years later, Fenos accompanies Yu Xiaogang, Tang San, and Xiao Wu on the second soul-ring hunt. Yu Xiaogang again advocates a venomous animal-type soul beast, citing the apparent success of Tang San's Datura Snake ring and claiming that Blue Silver Grass will not reject other kinds of rings. Fenos objects that animal-type rings can cause severe rejection in plant-type martial souls and recommends a plant-type soul beast instead. 44
Shrek Academy Instructor
At Shrek Academy, Yu Xiaogang takes responsibility for the students' instruction. He improves their meals, evaluates their combat ability, and imposes a weighted-running regimen intended to foster teamwork. 67 68
He later helps lead the students' soul-ring hunts, supports Tang San's increasingly risky choices, and trains the Shrek team in a Seven-in-One Fusion Skill. 89 135 136
His apparent contribution to the Seven-in-One Fusion Skill is heavily disputed after the research is linked to Shi Nian and later footage shows that he never actually teaches the technique to the Shrek team. Rather than explain himself, Yu Xiaogang insists that Tang San's future success will prove his worth. 134 143 157
In the White World, he also proposes following the comparison footage by merging Shrek into Heaven Dou Royal Academy, citing its better cultivation environment, tournament access, and provision for the teachers' retirement. Flender reluctantly agrees to seek Qin Ming's assistance. 98
Conflict with Tang Chuan
Yu Xiaogang's rejection by Tang Chuan remains unresolved. When Tang Chuan appears at Heaven Dou Royal Academy, Yu Xiaogang recognizes him and plots to have Ma Hongjun defeat him, hoping to vindicate his own earlier recruitment attempt. 99 100
The plan fails when Tang Chuan defeats Ma Hongjun in one move, further exposing Yu Xiaogang's resentment and overconfidence. 101
Subsequent comparison footage shows Yu Xiaogang bloodied and screaming after Tang Chuan's victory over him and Flender. Liu Erlong and Bibi Dong react with fury and a desire to avenge him. 103
Yu Xiaogang's original-future White World counterpart later considers seeking refuge with Tang Chuan's Qingdi Sect to avenge the Blue Lightning Tyrant Sect. The Black World's Yu Xiaogang vehemently condemns that choice, invoking Tang Chuan's rejection of him and contrasting Tang Chuan unfavorably with Tang San. 283
Reunion and Transfer to Lanba Academy
In footage of the Black World's original future, Yu Xiaogang reunites with Liu Erlong after Shrek's unsuccessful attempt to join Heaven Dou Royal Academy. Liu Erlong welcomes the teachers and students into Lanba Academy and declares that she will not let Yu Xiaogang evade her again. 84
Yu Xiaogang explains their history and close blood relationship to Tang San, whose encouragement helps bring the pair together. The broadcast of their relationship causes widespread scandal and gives rival factions an opportunity to attack the Blue Lightning Tyrant Sect's reputation. 85
In the White World's original future, Shrek initially succeeds in merging with Heaven Dou Royal Academy, and Yu Xiaogang begins using its facilities for instruction. After Flender discovers Liu Erlong at Lanba Academy, however, he decides to move Shrek there despite Qin Ming's commitment to Tang Chuan should Shrek leave. Yu Xiaogang initially resists the reunion but eventually accepts Flender's persuasion, and the transfer proceeds. 105 106 107
Visit to Martial Soul City
Before the Continental Advanced Soul Master Academy Elite Tournament, Yu Xiaogang travels to Martial Soul City to ask Bibi Dong for the method of preventing a Twin Martial Soul possessor from suffering a fatal backlash while attaching rings to the second martial soul. 136
Bibi Dong refuses to give him the secret, suspecting his intentions. When she reveals that she has targeted Tang San, Yu Xiaogang furiously threatens Martial Soul Hall and declares that Tang San is like a son to him. 136 137
Later Reputation and Military Role
Comparison footage shows Yu Xiaogang later becoming commander-in-chief of the Heaven Dou Empire's soul masters, excluding the Tang Family Army; he is also named the Blue Lightning King, Chief Imperial Soul Master, and commander of the Heaven Dou Soul Master Regiment. 380
He provides Tang San with information about Sea God Island and supports Tang San's later plans for further cultivation there. 269
His reputation is undermined by revelations concerning copied research, flawed training, and his inability to match Tang Chuan's military strategy. When Tang Chuan's campaigns are revealed as deliberate, low-casualty victories, Yu Xiaogang reacts with humiliation and despair. 380 401 402
During the final stages of the war at Jialing Pass, Bibi Dong asks to see Yu Xiaogang again and maintains that her destruction of the Blue Lightning Tyrant Sect was revenge for the way his family had ostracized and humiliated him. 460
Refusal of God Realm Ascension
Before Tang San ascends to the God Realm with Xiao Wu in the original future, he visits Yu Xiaogang and Liu Erlong to bid them farewell. Tang San states that he can bring two people with him and initially offers the places to his teacher and Liu Erlong. 501
Yu Xiaogang desires the opportunity but refuses publicly, reasoning that taking a place requested by Ma Hongjun for Bai Chenxiang would harm his lifelong reputation. Tang San ultimately departs with Xiao Wu, leaving Yu Xiaogang to conceal his disappointment behind a display of magnanimity. 501
The footage then exposes Tang San's contempt for his teacher and his belief that the snake- and spider-type rings Yu Xiaogang selected were inappropriate for both Blue Silver Grass and the Blue Silver Emperor. Liu Erlong comforts the devastated Yu Xiaogang by arguing that he could not have known the martial soul's true nature. Yu Xiaogang accepts this defense and declares that he must find Tang San to clear up the supposed misunderstanding. 501 502
Rebuilding the Blue Lightning Tyrant Sect and Imprisonment
After the war, Yu Xiaogang rebuilds the Blue Lightning Tyrant Sect on Blue Tyrant Mountain with Flender and Liu Erlong. 504 505
He is also accompanied by his nephews Yu Tianheng and Yu Tianxin and the sect's few surviving members. After he raises the banner and announces the reconstruction, former affiliated forces and soul masters return, allowing the sect to recover some of its former appearance. Yu Yuanzhen, watching the comparison, expresses satisfaction that his son preserved the clan's name despite its near destruction. 504
Qian Renxue, having learned of Yu Xiaogang's history with Bibi Dong and its role in her family's destruction, sends Golden Crocodile Douluo to capture him. Yu Xiaogang, Flender, and Liu Erlong attempt to resist with the Golden Sacred Dragon, but Golden Crocodile Douluo's Martial Soul Avatar shatters the fusion in a single exchange. 505
Yu Xiaogang is knocked unconscious and taken to Spirit City, where Qian Renxue orders his imprisonment. She has him placed in a cell with violent inmates under instructions to give him a “proper welcome,” and the ensuing torture reduces him to terrified screams. 505 506
The Comparison Sky Screen's broadcast of this fate causes Yu Xiaogang profound humiliation in both worlds; Liu Erlong is his principal source of comfort, while Tang San privately takes satisfaction in the downfall of the teacher he believes deceived and used him. 506
The emotional consequences persist during later broadcasts. While Flender and the other White World teachers admire Shrek Academy's future greatness, Yu Xiaogang remains depressed by the contrast with his own imprisonment and torture. 548
Descendant Revelation and Future Shrek Legacy
During footage of the Peerless Tang Sect era, Tang San observes Huo Yuhao through a Void Mirror and reveals his plan to guide the era's “Child of Destiny” into the Tang Sect and Shrek Academy. He identifies Bei Bei as Yu Xiaogang's descendant and considers him obligated to restore the Tang Sect as repayment for Yu Xiaogang's past treatment of him. 534
The lineage revelation shocks Yu Xiaogang and Yu Yuanzhen, while Liu Erlong is delighted. Qian Renxue and Yu Yuanzhen infer that Yu Xiaogang may have had children with Liu Erlong, provoking renewed condemnation over their close kinship. This reaction is based on the implication of Bei Bei's ancestry rather than a disclosed family tree. 534
Despite the earlier scandals, the future Shrek Academy commemorates Yu Xiaogang with a statue alongside Flender, Liu Erlong, and the Shrek Seven Devils. However, Bei Bei's subsequent viewing of the comparison exposes the flawed logic behind Yu Xiaogang's Twin Martial Soul deduction and makes him question Shrek's inherited praise of its founders. 545 548
Renewed Disputes over His Methods
As later comparisons revisit martial soul development, Yu Xiaogang blames Spirit Hall's lack of freely available knowledge for his failure to improve Luo Sanpao. Liu Erlong agrees with him, but Dai Mubai and the other younger Shrek members privately regard this as another excuse. 561
Tang Wutian later recalls Tang Chuan's assessment that Luo Sanpao had substantial potential and that Yu Xiaogang's inability to develop it was the true problem. Yu Xiaogang angrily insists that he exhausted every method during years of research and accuses Tang Chuan of judging circumstances he never experienced. Liu Erlong and Flender defend him, while Xuan Zi and other members of the future Shrek Academy reconsider their admiration. 568
The dispute broadens when Shui Yue'er explains the superior progress of the White World's Tang Ya through Tang Chuan's Blue Silver Grass Meditation Method, life-type plant soul rings, and early soul-power compression. The Peerless Tang Sect's Tang Ya concludes that her potential was restricted by inherited methods rather than inherently deficient and publicly condemns Tang San and Yu Xiaogang's guidance. Yu Xiaogang rejects her criticism, again asserting that Tang San's eventual dual godhood proves his cultivation path was correct. 578
Tang Chuan subsequently gives Tang Ya his meditation method and insights into the Extreme Life Flow, providing her with an alternative to the cultivation tradition she has rejected. 579
Trivia
- Yu Xiaogang initially describes himself to Tang San as a guest at Nuoding Academy who “sponged off the food and drink.” 21
- He insists that “Grandmaster” and “teacher” are different forms of address, while strongly desiring Tang San to become his formal disciple. 21
- The Sky Screen punishes him for voting against his conscience by stripping Luo Sanpao's Golden Sacred Dragon Martial Soul Origin; the pain causes him to lose consciousness. 7
- His claim that there are “no useless martial souls, only useless soul masters” is repeatedly contrasted with his belief that Luo Sanpao ruined his own future. 25
- Di Tian's faction issues a death order against him should he enter the Star Dou Great Forest, following the Golden Sacred Dragon's use of the “Golden Great Fart.” 267
- Yu Xiaogang believes that Tang San's eventual godhood proves the correctness of his teachings, despite repeated evidence that Tang San's later achievements depend substantially on opportunities and guidance unrelated to Yu Xiaogang. 134 446
- His greatest fear during Tang San's ascension is not being denied the God Realm, but appearing dishonorable by taking Bai Chenxiang's place; his refusal ultimately leaves him behind on the continent. 501
- When Tang Ya criticizes his legacy, the others sarcastically observe that he is already dead in her future era. He misunderstands the remark and protests that he is still alive; the exchange does not depict his present death. 578
- Flender complains that his future Shrek statue looks old while Yu Xiaogang's and Liu Erlong's appear middle-aged, prompting Ma Hongjun to tease him about distinguishing himself from the romantic pair. 548