Yu Xiaogang

Biodata

Feature	Information
Name	Yu Xiaogang (玉小刚)
Alias(es)	Master
Gender	Male
Affiliation	Shrek Academy; formerly the Blue Lightning Tyrant Dragon Clan
Occupation/Role	Soul Master theorist; teacher; Tang San's teacher
Status	Alive
First Appearance	Chapter 5

Power Progression

Stage / Realm / Level	Chapter	Notes
Great Soul Master	53	Though a Great Soul Master, he is stated to be unable to reliably defeat even a three- or four-hundred-year Soul Beast.
Soul Power Level 30	94	Absorbs a 1,760-year-old Blue Scale Snake Soul Ring and breaks through after years of stagnation.
Third Soul Ring / Third Soul Skill	94 95	Gains a control-type Third Soul Skill, “Farting as Growth, Blue Silver Entanglement Luo Sanpao,” which restrains targets through Luo Sanpao.
Approximately Soul Power Level 35	139	Absorbs a 100,000-year Head Soul Bone, improving his physique, spiritual power, and Soul Power.

Background / History

Yu Xiaogang was born into the Blue Lightning Tyrant Dragon Clan but left after being scorned for his weak talent. His father, Yu Yuanzhen, had tacitly allowed the clan's treatment of him and later deeply regretted it. Yu Xiaogang's long absence from the clan lasted until Yu Tianheng persuaded him to return. 124 137

At Notting College, he noticed Tang San and Ye Fan because both possessed Innate Full Soul Power. Believing Tang San's unusual Martial Soul required a second Martial Soul to support that talent, he took Tang San under his care and repeatedly attempted to recruit Ye Fan as well. 5 6 7

Yu Xiaogang guided Tang San's early cultivation and Soul Ring hunts, but his desire to prove his theories and gain recognition became increasingly apparent. He was proud of Tang San reaching level 20 in two and a half years and tried to use that achievement to convince Ye Fan to become his disciple. 8 9 17

After arriving at Shrek Academy, Yu Xiaogang was introduced as a teacher and was publicly praised for his Martial Soul research. He initially mistook Flander's praise of Ye Fan for praise of Tang San, unaware that Ye Fan's Twin Martial Souls were already common knowledge at the academy. 53 54

He returned to the Blue Lightning Tyrant Dragon Clan with Yu Tianheng and Tang San. Yu Yuanzhen apologized, provided him with 50,000 Gold Soul Coins, and expressed faith in his potential. Yu Xiaogang was nevertheless humiliated by younger clan members, then stole the clan's inherited Soul Bone and Gold Soul Coin cards before fleeing with Tang San. 136 137 138

Appearance

Yu Xiaogang is described as fair-skinned and handsome, with a characteristically stiff facial expression. 17 54

• Often rides or travels with his mutated dragon Martial Soul, Luo Sanpao. 9 138
• Sustained a severe injury during an early Soul Hunting Forest expedition and later woke missing a body part. 12
• Is identified by other students as a eunuch. 62
• Following his Third Soul Ring incident, a Blue Silver Grass-like growth emerged from his body and became the External Soul Bone Blue Silver Whip. 95 96

Personality

Yu Xiaogang is knowledgeable and patient when explaining Soul Master cultivation, Soul Beast selection, and Soul Bone properties. He is especially attentive to Tang San, arranging supplies, personally guiding his Soul Ring hunts, and worrying intensely when Tang San disappears. 8 9 56 97

He also craves validation. His confidence rises sharply after his breakthrough at level 30, and he openly seeks to establish Tang San's fame so that Tang San's accomplishments will vindicate his own teaching and theories. 91 94 125

His ambition is accompanied by opportunism and greed. He accepts material support from his clan, steals its inherited Soul Bone, orders excessively when Dai Mubai treats the group, and uses Tang San in his cultivation method despite Tang San's discomfort. 99 131 138

Abilities & Skills

Martial Soul: Luo Sanpao

Yu Xiaogang's Martial Soul is a mutated Blue Lightning Tyrant Dragon. Its Soul Rings must be connected to dragon-blooded Soul Beasts, such as snakes, flood dragons, lizards, or fish; he believes absorbing an unrelated ring would be fatal. 9 93

• Leads the group through the Soul Hunting Forest. 9
• Releases a powerful stinking gas that repels Netherworld Wolves. 9
• Is vulnerable to enemy control and countermeasures; its Hypnotic Fart was neutralized by Ye Fan's clover Martial Soul. 106

Second Soul Skill: Hypnotic Fart

A Luo Sanpao-based fart attack with a hypnotic effect. 106

• Used during the Reversal Team battle. 106
• Countered by Ye Fan's clover Martial Soul. 106

Third Soul Skill: “Farting as Growth, Blue Silver Entanglement Luo Sanpao”

A control-type skill obtained from the 1,760-year-old Blue Scale Snake Soul Ring. 94 95

• Produces an entangling effect that restrains Azure Wolves. 95
• Was intended to fulfill Yu Xiaogang's goal of becoming a Control System Soul Master. 91 94
• Triggered an unexpected transformation that produced the Blue Silver Whip. 95 96

Martial Soul Fusion Skill

Yu Xiaogang and Tang San possess a Martial Soul Fusion Skill and planned to display it at the Soto Grand Soul Arena for recognition. 77

• Their announcement persuaded the arena to admit them despite their prior disruption. 77
• They were assigned to the Main Soul Arena Zone for a final double Soul Battle. 77

Soul Master Theory

Yu Xiaogang is known for researching Martial Souls and teaching cultivation theory. Flander introduces him as the theorist who determined the competitiveness of the top ten Martial Souls. 8 54

• Advises Tang San on selecting suitable Soul Beasts and Soul Rings. 8 9
• Identifies the Blue Scale Snake and seeks a control-oriented, dragon-blooded Soul Ring. 93
• Explains Soul Bone functions and their capacity to grow alongside their owner. 97

Equipment / Weapons / Items

• Storage Soul Tool Belt — Initially displayed to impress Ye Fan; Yu Xiaogang later gave it to Tang San. 8 9
• Pope Order — Received from Tang Hao when Tang Hao entrusted Tang San to him. 17
• Black Card — Given by Yu Yuanzhen; held 50,000 Gold Soul Coins. 137
• Blue Silver Whip — External Soul Bone created through his Third Soul Ring transformation; can break a large tree with one lash. 96
  • Its use causes Yu Xiaogang intense pain because his defense is insufficient. 97
  • It was eventually removed and destroyed by Tang San to end Yu Xiaogang's suffering. 98 99
• 100,000-Year Head Soul Bone — Absorbed after fleeing the clan; enhances his physique, spiritual power, and Soul Power. 139

Relationships

• Tang San — Disciple and central focus of Yu Xiaogang's teaching ambitions. Yu Xiaogang guides Tang San's early Soul Ring acquisition, while Tang San remains devoted to him during crises. 7 9 96
• Ye Fan — A talented student Yu Xiaogang repeatedly tries to recruit; their relationship is marked by Yu Xiaogang's pride, rivalry, and attempts to prove his teaching superiority. 6 17 162
• Flander — Longtime friend and fellow member of the Golden Iron Triangle. Flander brings Yu Xiaogang into Shrek Academy but later clashes with him over his ambitions. 52 54 126
• Zhao Wuji — Fellow Shrek teacher and occasional rival; Yu Xiaogang challenges him after claiming invincibility. 54
• Yu Tianheng — Nephew who fondly remembers Yu Xiaogang as the uncle who played with him in childhood and persuades him to return home. 124 125
• Yu Yuanzhen — Father and Blue Lightning Tyrant Dragon Clan leader. He apologizes for the past and supports Yu Xiaogang, but Yu Xiaogang later steals from him. 137 138
• Liu Erlong — Former girlfriend and cousin. Yu Xiaogang says he no longer loves her, while Liu Erlong remains determined to win him back. 149
• Tang Hao — Entrusts Tang San to Yu Xiaogang before departing and gives him a Pope Order. 17

Story Role / Major Arcs

Notting College and Tang San's Apprenticeship

Yu Xiaogang takes responsibility for Tang San after discovering his Innate Full Soul Power. He also tries to enlist Ye Fan, but Ye Fan refuses to formally become his disciple. 5 6 7

Early Soul Hunting Forest Expeditions

He accompanies Tang San and Ye Fan to the Soul Hunting Forest, teaches them cultivation theory, and relies on Luo Sanpao's noxious gas to protect the group from Netherworld Wolves. He is later poisoned and severely injured, surviving Tang San's emergency treatment. 8 9 12

Shrek Academy

Yu Xiaogang joins Shrek Academy to find Tang San and serve as a teacher. His arrival exposes his mistaken belief that Ye Fan was his disciple, and he grows increasingly concerned when Tang San fails the academy assessment and disappears. 52 53 54 56

Third Soul Ring and Blue Silver Whip

Seeking to become a Control System Soul Master, Yu Xiaogang enters the Star Dou Great Forest for his Third Soul Ring. He absorbs the Blue Scale Snake's ring, reaches level 30, manifests the Blue Silver Whip, and then suffers severe pain from the External Soul Bone until Tang San removes it. 91 94 95 96 97 98 99

Return to the Blue Lightning Tyrant Dragon Clan

Encouraged by Yu Tianheng, Yu Xiaogang returns home and reconciles with Yu Yuanzhen. After being bullied by younger disciples, he steals the clan's inherited Soul Bone and escapes with Tang San. 122 124 136 137 138

Blue Tyrant Academy Reunion

Yu Xiaogang reunites with Flander and Liu Erlong at Blue Tyrant Academy. His unresolved past with Liu Erlong resurfaces, complicated by his claim that he no longer loves her and by the later revelation of his eunuch status. 148 149 181

Trivia

• Yu Xiaogang considers becoming a Titled Douluo his ultimate goal and believes his “invincible theory” will enable him to reach it. 97
• He hopes to become a Titled Douluo within twenty years, a claim the others silently regard as unrealistic. 180
• Tang San calls him “wife” after plot modifications alter their relationship framing. 17
• His Blue Silver Whip is said to rank External Soul Bones second on the Soul Master's Dream List. 96