Yu Xiaogang

Biodata

Feature	Information
Name	Yu Xiaogang (玉小刚)
Alias(es)	Grandmaster
Species/Race	Human
Gender	Male
Affiliation	Blue Lightning Tyrant Dragon Clan (former); Shrek Academy (former)
Occupation/Role	Soul Master theorist; Tang San's teacher
Status	Alive; released from Spirit Hall captivity and publicly disgraced 375 380
First Appearance	Chapter 84 84

Background / History

Yu Xiaogang was the youngest son of Yu Yuanzhen, Sect Master of the Blue Lightning Tyrant Dragon Clan, and once held the position of Young Sect Master. His Martial Soul mutated upon awakening, leaving him with only half a level of innate soul power. He eventually fell to level 29 and was expelled from the clan after the matter involving Liu Erlong came to light. 105

Unable to become a powerful Soul Master, Xiaogang turned toward Martial Soul theory. He copied knowledge from the Blue Lightning Tyrant Dragon Clan before seeking information from Spirit Hall, where he acquired research that later formed much of his published theory, including the proposed age limits for absorbing Soul Rings. 133 263 307

He became Tang San's teacher at Shrek Academy and focused almost exclusively on cultivating Tang San into the disciple who would prove his own worth. His favoritism and double standards toward Tang San eventually led Flander to remove him from teaching Dai Mubai, Oscar, and Ma Hongjun. 91 92 121

When Shrek joined Heaven Dou Royal Academy, Xiaogang received accommodation but no staff position because his level-29 strength did not meet the academy's requirements. He nevertheless remained to support Tang San's cultivation and tournament preparation. 125

Spirit Hall later captured him. Bibi Dong confronted him with Tang Hao's death and threatened to destroy the theoretical work Xiaogang valued above all else. In the Pope's Hall, she revealed to Tang San that Xiaogang's theories had been taken from Spirit Hall research; Xiaogang admitted that his desire to prove he was not worthless had led him to place his hopes on Tang San. 263 307

Bibi Dong eventually released him rather than killing him. By then, his reputation had collapsed: commoners knew him as a plagiarist who had misled his disciple, and he chose to leave in search of a secluded life under another name. 375 380

Appearance

Following his imprisonment in Spirit Hall, Xiaogang is described as disheveled, with messy hair and dust covering his body. 262

• A level-29 Great Soul Master despite his advanced age. 125
• Later described as crippled and disgraced after Spirit Hall's actions. 375

Personality

Xiaogang is intensely proud of his theoretical knowledge and obsessed with disproving the judgment that he is a failure. His central ambition is not to destroy the Blue Lightning Tyrant Dragon Clan, but to raise a disciple capable of surpassing its geniuses and forcing the clan to acknowledge his worth. 105 121

He is devoted to Tang San's growth, willing to endure personal humiliation and sacrifice opportunities for Tang San's access to Heaven Dou Royal Academy's resources. However, this devotion is inseparable from his need to use Tang San as proof of his own theories and value. 125 220 307

His teaching is marked by bias. He defended Tang San after losses, arranged training that favored him, and reacted angrily when others questioned his methods. 91 92 He also dismisses Tang San's Blue Silver Grass as inherently inferior while prioritizing the Clear Sky Hammer as Tang San's true path to power. 167

Abilities & Skills

Martial Soul Theory

Xiaogang has broad knowledge of Martial Souls, Soul Rings, Soul Beasts, and cultivation principles.

• Compiled and circulated theoretical material that made previously restricted Soul Master knowledge more accessible to commoners. 263 380
• Claimed authorship of Soul Ring absorption-age limits, though this knowledge was later revealed to have originated from Spirit Hall and Blue Lightning Tyrant Dragon Clan research. 133 263 307
• His work also contains personal guesses and inaccurate conclusions, particularly where his own low strength left him without practical experience. 263 380
• Understands the Blue Lightning Tyrant Dragon Clan's Dragon Transformation Secret Technique and its role in enhancing a user's physique. 131

Instruction and Cultivation Planning

Xiaogang serves as Tang San's primary mentor for much of the story.

• Reviews Tang San's Soul Rings and warns him when he believes a Soul Ring is too old or too weak for its intended stage. 85
• Encourages Tang San to cultivate relentlessly and frames Yu Tiankong as the rival Tang San must surpass. 104 121 168
• Planned for Tang San to develop the Clear Sky Hammer with nine Soul Rings exceeding fifty thousand years, along with the Great Sumeru Hammer and Ring Detonation techniques. 167
• Helped Tang San obtain the thousand-year Soft Bone Rabbit head Soul Bone from Flander. 109 121
• His insistence that Tang San delay adding rings to his second Martial Soul reflects awareness of the danger of premature absorption, although Tang San later disregards this advice. 220 229

Soul Master Cultivation

Xiaogang remains a level-29 Great Soul Master and cannot break through to level 30. His low cultivation prevents him from holding a teaching post at Heaven Dou Royal Academy. 125

• His Martial Soul is mutated, but its exact form is not documented in the available material. 105
• His innate soul power was only half a level. 105
• His lack of combat strength undermines public confidence in his theoretical authority. 125 263

Relationships

• Tang San — Teacher and disciple. Xiaogang makes Tang San the vehicle for proving his theories and reclaiming his self-worth; Tang San remains loyal even after learning the truth about Xiaogang's stolen research. 121 125 307
• Yu Yuanzhen — Father and Sect Master of the Blue Lightning Tyrant Dragon Clan. Xiaogang was once his heir but was later expelled from the clan. 105
• Yu Tiankong (Kong) — Successor of the clan Xiaogang once expected to lead. Xiaogang sees Kong's extraordinary rise as both a personal wound and the benchmark Tang San must defeat. 85 104 121
• Bibi Dong — Former Spirit Hall connection who later imprisons, exposes, and releases him. Her revelations strip away both his reputation and the legitimacy of his theoretical work. 262 263 307 375
• Liu Erlong — Former member of the Golden Triangle. Revelations concerning Xiaogang's motives and his awareness of her connection to Yu Luomian destroy their longstanding relationship. 133 166
• Flander — Longtime friend and former Golden Triangle companion. Their relationship fractures after Xiaogang's favoritism toward Tang San; Flander later gives him the Soft Bone Rabbit head Soul Bone under pressure involving Tang Hao's favor. 92 121
• Dai Mubai, Oscar, and Ma Hongjun — Shrek students formerly under Xiaogang's instruction. Flander removes them from Xiaogang's supervision due to his biased treatment. 91 92

Notable Quotes

“My theories are invincible!” 263

“I just wanted to prove that I wasn't a waste too much. That's why I placed my hope on you.” 307