Yu Xiaogang

Biodata

Feature	Details
Name	Yu Xiaogang (玉小刚)
Alias(es)	Grandmaster; “Master”; former Wisdom Horn of the Golden Iron Triangle
Gender	Male
Affiliation	Shrek Academy; formerly the Blue Lightning Tyrant Dragon Clan
Occupation/Role	Martial soul theorist and teacher
Status	Alive; physically castrated by Tang San 38
First Appearance	Observes Tang San at Notting Academy 5

Background / History

Yu Xiaogang was the son of Yu Yuanzhen, leader of the Blue Lightning Tyrant Dragon Clan, and was once regarded as a favored son of heaven. His prospects collapsed after he awakened Luo Sanpao, a martial soul whose defining ability is releasing powerful flatulence; he was later expelled from his clan. He subsequently became known for martial soul theory and his Ten Core Competitiveness Principles. 8 59

At Notting Academy, Xiaogang noticed Tang San’s innate full soul power and Blue Silver Grass, viewing him as a gifted prospect who should have belonged to him rather than Shen Qingling. He approached Tang San claiming to be the continent’s foremost theoretical master and exposed Tang San’s twin martial souls in public. 5 8

He sought to direct Tang San’s Blue Silver Grass down a control route centered on toughness and toxicity. Tang San rejected this approach as harmful to the martial soul’s future evolution, defended Shen Qingling, and openly ridiculed Xiaogang’s low cultivation and Luo Sanpao. 8 9

Xiaogang persisted even after Tang San’s Blue Silver Grass showed abnormal evolution and a 720-year first soul ring—evidence that contradicted his stated limit of 423 years. He dismissed the ring as fraudulent rather than reconsidering his theory. 9

Appearance

Yu Xiaogang is a thin-framed man with a short crew cut, commonly seen carrying notes or booklets on martial soul theory. 7 30

• Short, flat crew-cut hair.
• Thin build.
• Often keeps a stern expression and furrowed brows. 30 82
• Carries written martial soul theory materials. 30 59

Personality

Xiaogang is intensely prideful about his theoretical standing and reacts badly when his claims are challenged. He repeatedly insists that his teachings are the correct path for Tang San despite Tang San’s visible progress under Shen Qingling and evidence that exceeds Xiaogang’s established limits. 8 9 31

His desire to prove his theories drives him to pursue exceptional students aggressively. He sees Tang San’s twin martial souls as a chance to gain recognition, later redirecting that ambition toward Oscar and Ma Hongjun after his failure to recruit Tang San. 36 43

Despite his resentment and repeated threats of revenge, Xiaogang retains a strong attachment to the Blue Lightning Tyrant Dragon Clan. After learning of its destruction and his father’s death, he abandons immediate revenge as impossible and focuses on protecting the surviving direct descendants, Yu Tianheng and Yu Tianxin. 59 60

Abilities & Skills

Martial Soul Theory

Yu Xiaogang promotes the Ten Core Competitiveness Principles of martial souls and considers himself an authority on martial soul cultivation. 8 31

• Advocates a toughness-and-toxicity control route for Blue Silver Grass. 8
• Claims a first soul ring cannot exceed 423 years and initially rejects Tang San’s 720-year ring as a trick. 9
• His conclusions are directly undermined by Tang San’s rapid growth, evolved Blue Silver King, and thousand-year second soul ring. 31

Luo Sanpao

Xiaogang’s martial soul is Luo Sanpao, depicted as a chubby dark-purple puppy phantom. 31

• Possesses two yellow soul rings. 31
• Uses Thunder Crash, described as a purple fart bomb attack. 31
• Luo Sanpao’s limitations are the source of Xiaogang’s personal resentment and sensitivity. 8 9

Soul Power

Yu Xiaogang is a Rank 29 Grand Soul Master, permanently stalled below the Soul Elder realm. 9

• He is unable to challenge Tang San after Tang San reveals a thousand-year second soul ring. 31
• Shen Qingling’s bloodline pressure leaves him unable to resist during the confrontation with Shrek’s recruitment party. 38

Equipment / Items

• Martial soul theory booklets and handwritten notes. 30 59

Relationships

• Tang San — Intended disciple and primary target of Xiaogang’s recruitment efforts. Tang San rejects his teachings, defeats him, and later castrates him after repeated harassment. 8 31 38
• Shen Qingling — Rival mentor whom Xiaogang repeatedly dismisses as unqualified; Shen Qingling protects Tang San and allows Tang San to handle Xiaogang himself. 8 31 38
• Flender — Old friend and former Golden Iron Triangle companion. Flender helps Xiaogang attempt to recruit Tang San, supports him after his injury, and later helps relocate the surviving Yu brothers. 36 42 59 60
• Zhao Wuji — Accompanies Xiaogang and Flender during the attempt to seize Tang San for Shrek; is severely injured by Shen Qingling. 37 38
• Yu Yuanzhen — Father and Blue Lightning Tyrant Dragon Clan patriarch. Xiaogang is estranged from him, but is devastated upon learning of his death. 59 62
• Yu Tianheng and Yu Tianxin — Nephews and surviving direct descendants of the Blue Lightning Tyrant Dragon Clan. Xiaogang brings them to Shrek Academy and urges them to preserve the clan’s bloodline. 59 60
• Oscar and Ma Hongjun — Xiaogang’s new Shrek disciples after Tang San’s rejection. He resolves to train them and prove his theories through their achievements. 43
• Liu Erlong — Her fate is one of Xiaogang’s remaining hopes after his castration; he is unable to intervene when Shen Qingling cripples her cultivation and has her taken away. 42 91

Story Role / Major Arcs

Attempt to Recruit Tang San

Xiaogang identifies Tang San as a twin martial soul genius and tries to replace Shen Qingling as his teacher. His proposed cultivation route, insults toward Blue Silver Grass, and disparagement of Shen Qingling turn Tang San firmly against him. 8 9

Escalation at Notting Academy

After Tang San returns with an evolved Blue Silver King and Rank 27 soul power, Xiaogang again pressures him to become his disciple. Tang San reveals a thousand-year second soul ring, easily overwhelms Luo Sanpao, and leaves Xiaogang humiliated. 30 31

Shrek Recruitment Attempt and Castration

Xiaogang recruits Flender and Zhao Wuji to intercept Tang San in Heaven Dou City and bring him to Shrek Academy. The attempt fails when Shen Qingling defeats Flender and Zhao Wuji; Tang San then castrates Xiaogang in retaliation for his repeated interference. 36 38

Shrek Teacher

Following his recovery, Xiaogang regains his resolve after Flender encourages him to train new gifted disciples. He takes Oscar and Ma Hongjun as students, hoping their success will validate his theories and restore his reputation. 42 43

Fall of the Blue Lightning Tyrant Dragon Clan

Xiaogang learns that his father and seven core elders have died and that the Blue Lightning Tyrant Dragon Clan has been forced to disband. Overcome by grief and rage, he initially demands revenge, but accepts that he is powerless against Shen Qingling. 59 61 62

He instead travels to Thunderclap Academy with Flender, retrieves Yu Tianheng and Yu Tianxin, and brings them to Shrek Academy as the remaining hope of the clan’s direct bloodline. 60

Liu Erlong’s Downfall

Xiaogang and Flender witness Shen Qingling destroy Liu Erlong’s cultivation and have her taken away as punishment. Xiaogang is horrified but remains silent, too fearful of Shen Qingling’s power to intervene. 91

Notable Quotes

“I am the continent's foremost theoretical master, and the first person to propose the Ten Core Competitiveness Principles of martial souls.” 8

“I want revenge!” 59

Trivia

• Xiaogang’s 720-year first-soul-ring limit is contradicted by Tang San’s first soul ring. 9
• He considers Tang San’s growth under Shen Qingling to be a waste of talent, even after Tang San reaches Rank 27 in only one year. 31 47
• His attempt to prove himself through Tang San instead becomes the cause of his lasting physical injury and humiliation. 36 38