Yu Xiao Gang

Biodata

Feature	Value
Name	Yu Xiao Gang (狱小肛)
Alias(es)	Gangzi; “Grandmaster”; Trash Gang
Gender	Male
Affiliation	Blue Lightning Tyrant Dragon Clan; Shrek Academy; formerly Spirit Hall
Occupation/Role	Soul Master theorist; teacher; mentor to Toad Tang San
Status	Deceased 395
First Appearance	Chapter 16

Power Progression

Stage / Realm / Level	Chapter	Notes
Level 29 Soul Grand Master	Ch. 18	Identified as only level 29 despite his age; this bottleneck becomes a central source of resentment and shame.
Level 30 Soul Elder	Ch. 241	Consumes the Mysterious Water Pill, breaks through, and releases dark energy that merges with Roaring Three Cannons.
Regressed to Level 29	Ch. 243	After integrating his Soul Rings, unexpectedly falls back to level 29 and remains unconscious for three weeks.

Background

Yu Xiao Gang was the son of Yu Yuanzhen and the young sect master of the Blue Lightning Tyrant Dragon Clan. His Innate Soul Power was only level 5, and his Roaring Three Cannons Martial Soul was considered defective; he remained stuck at level 29 for years. 18 273

Before his expulsion from Spirit Hall, he attempted to court Bibi Dong in hopes of using Spirit Hall’s resources to cure his Martial Soul defect. When confronted by Xu Xin, he immediately confessed his motives and pleaded for mercy. 17 He was subsequently injured and humiliated by Xu Xin, Bibi Dong, and Liu Erlong, then blamed the Clear Sky Sect for his misfortunes. 18 27

Following his expulsion, Yu Xiao Gang left the Blue Lightning Tyrant Dragon Clan and published The Ten Martial Souls’ Core Competitiveness, seeking fame through his theories. His work earned him recognition in Tianshui City, where he began being called “Grandmaster.” 42 61 62

Appearance

Yu Xiao Gang is later described as scruffy and increasingly disfigured after repeated injuries. His voice becomes notably high-pitched under stress, contributing to suspicions that he is a eunuch. 145 219

• Often carries a book containing his Martial Soul theories. 52 72
• Wears glasses. 72
• His face is severely damaged after Toad Tang San’s accidental Toad Pus Ray strike. 207 208
• Both legs are broken by Xue Luochuan. 219
• His lower body is later described as ruined, leaving him unable to walk normally. 290

Personality

Yu Xiao Gang is proud, insecure, and intensely preoccupied with recognition. He interprets setbacks as persecution by others and repeatedly attributes his stagnation to his Martial Soul, his father, or hostile factions rather than his own limitations. 42 272 274

He is also manipulative. He deceives Tang Xiao and Tang Hao to redirect their anger toward the Seven Treasure Glazed Tile Sect, retells his past selectively to win Xue Ya’s sympathy, and later uses his authority as “Grandmaster” to mislead the Shrek Seven Devils about high-level Soul Rings. 27 73 200

Despite his cowardice and self-interest, he is deeply attached to Toad Tang San. He mentors and comforts him, seeks Yu Yuanzhen’s help when Tang San is trapped in Shi Nian’s illusion, and is willing to swallow his pride for his disciple’s safety. 174 218 269

Abilities & Skills

Roaring Three Cannons Martial Soul

Yu Xiao Gang’s Martial Soul manifests as Roaring Three Cannons, which he initially believes to be worthless.

• He shares this Martial Soul with Xu Ruobing. 272
• Xu Ruobing demonstrates that Roaring Three Cannons can transform into a dragon, proving the Martial Soul itself has potential. 273
• Yu Xiao Gang’s inability to realize this potential causes him severe mental collapse and self-loathing. 274
• Dark energy merges into the Martial Soul during his brief breakthrough to level 30. 241

Martial Soul Theory

Yu Xiao Gang presents himself as a leading theorist and publishes The Ten Martial Souls’ Core Competitiveness. 42 62

• Shares theories on Soul Ring age limits with Toad Tang San. 174
• Studies and explains the Trinity Martial Soul Fusion Skill used with Flender and Xue Ya. 72
• Advises students on Soul Beast selection and suitable Soul Rings. 208 251
• His claims are not always reliable; he falsely argues that observed thousand-year second rings and ten-thousand-year fourth rings were fabricated by a support-type Soul Master. 200

Trinity Martial Soul Fusion Skill

Yu Xiao Gang, Flender, and Xue Ya possess a three-person Martial Soul Fusion Skill discovered through ancient records and studied by Yu Xiao Gang. 72

• The trio claims the fusion can contend with a Soul Sage. 72
• Its power is weaker than the original counterpart because Xue Ya’s Blue Dragon Martial Soul has limited potential. 72

Relationships

• Yu Yuanzhen — Father and Blue Lightning Tyrant Dragon Clan Sect Master. Their relationship is strained, though Yu Yuanzhen repeatedly provides support, including attempting to help Yu Xiao Gang break through level 30 and saving Toad Tang San from Shi Nian’s illusion. 42 104 269
• Toad Tang San — Disciple. Yu Xiao Gang mentors, manipulates, and consoles him; Tang San later rescues Yu Xiao Gang from imprisonment despite feeling disgusted by him. 174 218 290
• Xue Ya — Former lover and later revealed half-sister. She initially admires and protects Yu Xiao Gang, but their planned marriage collapses after their shared parentage is exposed. 73 103 104
• Flender — Sworn brother and ally. Flender follows Yu Xiao Gang through his conflicts, but their relationship becomes tense amid Xue Ya and Yu Xiao Gang’s bitterness. 72 75 221
• Bibi Dong — Former object of Yu Xiao Gang’s ambitions. He sought to use her connection to Spirit Hall to solve his Martial Soul defect. 17
• Xu Xin — Major adversary who exposes, humiliates, and repeatedly undermines Yu Xiao Gang. 17 18 277 289
• Xue Beng — Arranges Yu Xiao Gang’s kidnapping and abuse through Brother Long. 235 236
• Dai Mubai — Later associated with Yu Xiao Gang in a scandal publicly exposed across the continent. 339 341

Story Role / Major Arcs

Conflict with Xu Xin and Spirit Hall

Yu Xiao Gang plots to remove obstacles to pursuing Bibi Dong, but is exposed by Xu Xin and punished instead. His injury, humiliation, and belief that the Clear Sky Sect was responsible fuel a long-running desire for revenge. 16 17 18 27

Rise of the “Grandmaster”

After Spirit Hall expels him, Yu Xiao Gang publishes his theories and gains recognition. He embraces the “Grandmaster” title, becomes a teacher at Nuoding Academy, and later joins Shrek’s teaching staff. 42 61 145

Relationship with Xue Ya

Yu Xiao Gang forms a trio with Flender and Xue Ya, who admires his knowledge and supports him emotionally. Their romance ends when Yu Yuanzhen reveals that Xue Ya is his illegitimate daughter, making her Yu Xiao Gang’s half-sister; Yu Xiao Gang flees rather than face the situation. 72 73 103 104

Mentor of Toad Tang San

Yu Xiao Gang becomes Toad Tang San’s teacher, teaches him Soul Ring theory, and sees Tang San’s Twin Martial Souls as his route to legendary fame. He imagines himself becoming renowned for “raising a God” should Tang San obtain the Vast Sea Cosmic Shroud. 174 233 250

Mysterious Water Pill and Regression

Desperate to overcome level 29, Yu Xiao Gang pressures Tang San to acquire a Mysterious Water Pill. The pill briefly advances him to level 30, but he soon regresses to level 29 after integrating Soul Rings. 224 237 241 243

Public Humiliation and Exposure

Yu Xiao Gang is repeatedly assaulted, disfigured, and exposed as a eunuch. At the Soul Fighting Arena, his identity is publicly confirmed through Roaring Three Cannons, and Yu Yuanzhen disowns him before the gathered crowd. 219 289 290

Final Reputation Collapse

Toad Tang San later arranges for Yu Xiao Gang’s affair involving Xue Beng and Dai Mubai to be exposed anonymously. The scandal spreads through Heaven Dou City and across the continent, devastating Yu Xiao Gang and further disgracing the Blue Lightning Tyrant Dragon Clan. 339 341

Trivia

• Yu Xiao Gang refuses to trust pills for much of the story because of a painful earlier experience, yet later becomes desperate enough to pursue the Mysterious Water Pill. 74 224
• He mistakes Xu Xin’s Ninja Soldiers for agents of the Clear Sky Sect. 53 276
• He repeatedly insists on protecting his dignity, but conceals the kidnapping and abuse arranged by Xue Beng because he fears losing face. 236