Yu Xiaogang

Biodata

Feature	Details
Name	Yu Xiaogang (玉小刚)
Alias(es)	Master; Grandmaster; Tang San's godmother
Gender	Male
Affiliation	Shrek Academy; formerly the Blue Lightning Tyrant Dragon Clan; formerly an Honorary Elder of Spirit Hall
Occupation/Role	Martial soul theorist; Shrek Academy instructor; Tang San's adoptive godparent
First Appearance	Chapter 24

Power Progression

Stage / Realm / Level	Chapter	Notes
Rank 29 Soul Power / Grand Soul Master	25, 128, 180	His soul power had remained below level 30 for years, a limitation he hopes to overcome through Luo Sanpao's bloodline evolution.
Luo Sanpao gains dragon-blood traits	26	Completing the Green Light System's first mission grants Golden Sacred Dragon bloodline purity; Luo Sanpao becomes fatter and develops several golden scales.
Golden Sacred Dragon bloodline: 9.82%	74	His accumulated bloodline purity is recorded before a mission to declare love for Bibi Dong.
Fat Pig martial soul	74, 94	Failing the mission reduces his bloodline purity by 10%, devolving Luo Sanpao into a fat pig and changing it into a possession-type martial soul.
Pig Tail External Soul Bone	126	Obtains an external soul bone that increases the power of gas-related abilities tenfold.
Enhanced Farting Like Thunder	128	Uses the Fat Pig possession, Pig Tail External Soul Bone, and a strengthening drug to create a noxious blast powerful enough to halt charging demonic apes.

Background

Yu Xiaogang is introduced at Shrek Academy as Flander's longtime friend and a stern instructor celebrated for the Ten Core Competitiveness Theories of Martial Souls. He imposes harsh endurance training on the students, including repeated weighted runs between the academy and Suotuo City. 24 25

His stalled rank 29 cultivation and Luo Sanpao's failed mutation are central sources of humiliation. Lin Jiang binds him to the Green Light System, which promises to increase Luo Sanpao's Golden Sacred Dragon bloodline purity in exchange for completing missions. 25 26

The system's novice mission forces Yu Xiaogang to witness footage of Bibi Dong's past suffering at Qian Xunji's hands. The revelation leaves him emotionally shattered, but the resulting dragon-blood manifestation in Luo Sanpao convinces him that continued missions could evolve it into a true Golden Sacred Dragon. 26 27

Appearance

Yu Xiaogang is a thinning-haired, stern-faced middle-aged man whose rigid, imposing manner contrasts with his physically weak cultivation. 24 25

• Sparse hair and a stiff, unsmiling expression. 24 27
• Frequently appears disheveled or bruised after confrontations with stronger figures. 93 187
• His Fat Pig martial soul possession gives him a pig snout, bloated body, stubby fingers, and a curled tail. 94
• The Pig Tail External Soul Bone further emphasizes his porcine transformation. 126

Personality

Yu Xiaogang presents himself as a dignified, strict theory master, but he is deeply insecure over his failed martial soul mutation and inability to reach level 30. The prospect of restoring the Golden Sacred Dragon bloodline repeatedly overrides his caution, dignity, and relationships. 25 26 69

He is fiercely attached to Tang San, accepting him as a godson and repeatedly intervening on his behalf despite the risks. He pleads with Yu Yuanzhen to spare Tang San and later attempts to obtain Spirit Hall's method for cultivating twin martial souls for him. 27 105 175

His ambition makes him reckless and self-deceiving. He insults Spirit Douluo Zhi Lin for a system reward, attempts to steal Oscar's soul bone, and drinks tainted tea at Spirit Hall because he believes doing so will advance his martial soul. 69 125 181

Abilities & Skills

Martial Soul: Luo Sanpao / Fat Pig

Luo Sanpao was originally a failed mutation with a trace of Golden Sacred Dragon blood. After the system-induced devolution, it becomes a Fat Pig possession-type martial soul. 26 74 94

• Golden scales briefly appeared on Luo Sanpao after its bloodline purity increased. 26
• Yu Xiaogang believes continued bloodline growth could evolve it into a Golden Sacred Dragon. 27
• Its devolution prevents the Golden Iron Triangle from using their martial soul fusion skill. 94
• Possession grants Yu Xiaogang a pig-like physical transformation rather than the detached Luo Sanpao form. 94 128

Farting Like Thunder

His first soul skill releases a powerful burst of gas; its incantation changes after Luo Sanpao becomes the Fat Pig martial soul. 128

• With the Pig Tail External Soul Bone, its gas-related power is amplified tenfold. 126
• He combines the skill with a potent strengthening drug to produce a thunderous, noxious shockwave. 128
• The enhanced blast interrupts a seventy-thousand-year demonic ape king's troop during its charge. 128

Martial Soul Theory

Yu Xiaogang is regarded at Shrek as an authority on martial soul theory and is credited with the Ten Core Competitiveness Theories of Martial Souls. 24

• Uses theoretical knowledge to assess soul beasts and warn Tang San against attempting to absorb a ten-thousand-year fourth soul ring. 127
• His confidence in his theories collapses after the Green Light System demonstrates that soul ring ages and bloodlines can be directly altered. 26 27
• His practical combat strength remains limited by rank 29 soul power. 26 180

Green Light System

Lin Jiang secretly binds Yu Xiaogang to the Green Light System, which issues missions in exchange for martial soul and bloodline rewards. 25

• Rewards include Golden Sacred Dragon bloodline purity increases and a Soul Ring Age Card. 25 27
• Failure can reduce bloodline purity or expose memories Yu Xiaogang most wishes to hide. 42 74
• The system's rewards drive Yu Xiaogang to endure humiliation and act against his own judgment. 69 74 181

Equipment / Items

• Pig Tail External Soul Bone — Enhances gas-related abilities tenfold. 126
• Soul Ring Age Card — Earned after accepting Tang San as his godson; can increase the age of one designated soul ring by ten years. 27
• Honorary Elder Token — Former Spirit Hall credential; Bibi Dong orders it confiscated after rejecting him. 182 183

Relationships

• Tang San — Adoptive godson. Yu Xiaogang accepts Tang San's public request to become his godmother and repeatedly attempts to protect or aid him. 27 105 175
• Lin Jiang — Secretly binds Yu Xiaogang to the Green Light System and benefits from the rewards generated by Yu Xiaogang's completed missions. 25 42 69
• Bibi Dong — Former lover. Yu Xiaogang remains fixated on their past, but Bibi Dong rejects him, confiscates his token, and expels him from Spirit Hall. 26 181 182
• Liu Erlong — Former lover. Their reunion collapses when a system mission compels Yu Xiaogang to invoke Bibi Dong; Liu Erlong attacks him in fury. 74
• Flander — Old friend and fellow Shrek teacher. Flander introduces him as Shrek's Master but later scolds him for offending Zhi Lin and is shocked by his Fat Pig transformation. 24 69 94
• Yu Yuanzhen — Father and Blue Lightning Tyrant Dragon Clan leader. Yu Yuanzhen disowns Yu Xiaogang and removes him from the clan register after he pleads for Tang San. 105
• Oscar — Yu Xiaogang attempts to steal Oscar's soul bone while he sleeps, causing Oscar to mistake him for an attacker. 125

Story Role / Major Arcs

Shrek Academy and System Binding

Yu Xiaogang joins Shrek's staff, directs punishing training, and is selected by Lin Jiang as the second subsystem target. His first Green Light System mission exposes Bibi Dong's past trauma while awakening Luo Sanpao's dragon-blood potential. 24 25 26

Tang San's Godmother

Tang San accepts a system task to recognize Yu Xiaogang as his godmother, while Yu Xiaogang accepts Tang San as his godson for a Soul Ring Age Card. Their unusual adoptive bond becomes a major motivation for Yu Xiaogang's later decisions. 27

Heaven Dou Academy Incident

Obsessed with a five-percent bloodline reward, Yu Xiaogang interrupts Zhi Lin's test of Tang San and insults the Spirit Douluo's Azure Vine martial soul. The incident damages Shrek's standing at Heaven Dou Imperial Academy. 69 70

Liu Erlong Reunion and Martial Soul Devolution

During his reunion with Liu Erlong, Yu Xiaogang cannot complete a mission requiring him to publicly declare love for Bibi Dong. The failure strips away bloodline purity, devolves Luo Sanpao into a Fat Pig, and destroys the Golden Iron Triangle's fusion capability. 74 94

Defense of Tang San

Yu Xiaogang intervenes when Yu Yuanzhen punishes Tang San and Ma Hongjun, identifies Tang San as his adopted son, and kneels to plead for mercy. Yu Yuanzhen responds by publicly disowning him. 104 105

Spirit Hall Rejection

Seeking the secret to cultivating twin martial souls for Tang San, Yu Xiaogang travels to Pope Palace to meet Bibi Dong. He complies with another system mission by drinking tainted tea, fails to regain Bibi Dong's interest, loses his Honorary Elder Token, and is thrown out of Spirit Hall. 180 181 182 183

Separation from Tang San

Yu Xiaogang returns from Spirit Hall defeated and unable to provide Tang San with the promised cultivation method. Tang Hao mocks his failure and takes Tang San away for training, leaving Yu Xiaogang isolated and ashamed. 187 188

Trivia

• Yu Xiaogang's Golden Sacred Dragon bloodline purity is recorded as 9.82% before its catastrophic loss during the Liu Erlong reunion. 74
• He briefly attempts to pass off his Fat Pig possession as a beneficial martial soul evolution. 94
• His enhanced Farting Like Thunder is one of the few occasions where his altered martial soul materially changes a battle's outcome. 128