Yu Xiaogang

Biodata

Feature	Value
Name	Yu Xiaogang (玉小刚)
Alias(es)	Master; Third Young Master
Gender	Male
Affiliation	Notting Junior Soul Master Academy; Shrek Academy; Blue Lightning Tyrant Dragon Clan (formerly); Golden Iron Triangle; Three Thousand Dragon Riders
Occupation/Role	Soul Master theorist; mentor and instructor
First Appearance	Chapter 4

Background / History

Yu Xiaogang was born into the Blue Lightning Tyrant Dragon Clan, one of the Upper Three Sects. His martial soul underwent a malignant mutation into Luo Sanpao, leaving him with Innate Soul Power below rank one and a lifelong limit below rank thirty. He was subsequently expelled from the clan. 5

At Notting Junior Soul Master Academy, Yu intervened when an academy guard threatened Old Jack and rejected Su Xiao and Tang San’s enrollment credentials. He brought the boys into the academy, correctly deduced that Tang San possessed Twin Martial Souls, and accepted both children as his disciples after they formally knelt before him. 4 5

Yu personally led Su Xiao and Tang San into the Soul Hunting Forest for their first soul rings. He taught them foundational knowledge of Soul Beasts, soul rings, and soul skills, while helping Tang San secure the Mandala Snake soul ring. 7 8

He later joined Flender and Liu Erlong at Blue Tyrant Academy, which was renamed Shrek Academy. As part of the former Golden Iron Triangle, Yu carried deep emotional pain over his separation from Liu Erlong; after years apart, he finally confessed that he loved her and resolved never to leave her again. 47 71

After the Spirit City crisis, Yu returned to the Blue Lightning Tyrant Dragon Clan with Liu Erlong to support Su Xiao’s future. He and Liu Erlong were prepared to sever their ties with the clan if necessary for Su Xiao’s sake. 105

During the war against Spirit Hall, Yu Xiaogang and Liu Erlong commanded the Three Thousand Dragon Riders, an elite Heaven Dou unit formed from Blue Lightning Tyrant Dragon Clan disciples for Su Xiao. 178

Appearance

Yu Xiaogang is a weathered middle-aged man who commonly wears a gray robe. 4

• Slightly weathered face. 4
• Usually carries a stern, reserved demeanor. 4 35
• His martial soul, Luo Sanpao, is a round and chubby creature with a simple-minded, outwardly cute appearance. 5

Personality

Yu Xiaogang is stern, analytical, and deeply devoted to the growth of his students. He evaluates their weaknesses directly rather than indulging their confidence; after Su Xiao’s victory in the Spirit Arena, he warned him that relying on overwhelming Soul Power would become a liability against equal opponents. 24

Despite his restraint, he treats Su Xiao and Tang San as sons. He reacts fiercely when they are endangered, worries about Spirit Hall targeting them, and takes pride in their eventual ascent to the Titled Douluo realm. 49 98 179

His training can be uncompromising. He required the Shrek students to build a restaurant, cook a feast, and confront their respective shortcomings, allowing anyone unwilling to comply to leave. 35 However, he also emphasizes compassion, teaching that powerful soul masters must respect life rather than abandon their humanity. 42

Abilities & Skills

Soul Master Theory

Yu Xiaogang is regarded as the foremost theorist in the Soul Master world. Though his own cultivation is limited, his knowledge of martial souls, soul rings, cultivation paths, and combat development makes him an exceptional instructor. 29 179

• Correctly identified Tang San’s Twin Martial Souls from the incompatibility between Blue Silver Grass and Innate Full Soul Power. 4 5
• Planned soul-ring choices around each disciple’s martial soul and potential. 7 8
• Distinguished between the extreme and balanced cultivation schools, stressing that suitability matters more than an absolute “best” path. 57
• Recognized Su Xiao’s potential to cultivate the spiritual attack technique Rule the World. 35
• Set tactical restrictions for Spirit Arena matches, including masks, aliases, and limits on hidden weapons. 38

Luo Sanpao

Yu Xiaogang’s mutated Beast Martial Soul is Luo Sanpao, the result of a malignant mutation from the Blue Lightning Tyrant Dragon Clan’s inherited martial soul. 5

• Possesses two hundred-year soul rings. 7
• Luo Sanpao can act independently enough to scout and engage targets. 8
• Despite its harmless appearance, it can be used effectively against groups of Soul Beasts. 7

Heaven-Shaking Earth-Splitting Luo Sanpao

Yu Xiaogang’s First Soul Skill empowers Luo Sanpao to release a thunderous rearward blast that can incapacitate surrounding opponents. 7

• Defeated a group of plant Soul Beasts in the Soul Hunting Forest. 7
• Best suited to area disruption rather than precise single-target combat. 7

Golden Iron Triangle Martial Soul Fusion

Together with Flender and Liu Erlong, Yu Xiaogang can form the Golden Iron Triangle’s martial soul fusion technique, summoning the Golden Sacred Dragon. 47 49

• The trio assumed a triangular formation to confront Dugu Bo. 49
• Yu attempted to invoke the Golden Sacred Dragon’s ultimate secret technique, Sacred Dragon True Form, before Su Xiao interrupted the battle. 49

Teaching Methods

• Individualized training — Yu assigns training based on each student’s shortcomings, such as Su Xiao’s spiritual-power control exercise using a water vat. 34 35
• Practical combat — He requires Spirit Arena participation for combat experience, medals, funds, and coordinated team development. 38
• Soul Power control — He tested the students’ control by having them break an unbreakable bowl through Soul Power. 34
• Self-created soul skills — He encouraged every student to comprehend skills beyond their existing soul rings. 35
• Moral instruction — He used dangerous training against the Ferocious God Team to ensure his students understood both the cruelty of the world and the value of life. 42

Relationships

• Su Xiao — Direct disciple; Yu accepted him alongside Tang San and regards him with paternal pride and concern. 5 92 179
• Tang San — Direct disciple; Yu recognized his Twin Martial Souls, guided his early cultivation, and treats him like a son. 4 5 179
• Liu Erlong — Golden Iron Triangle partner and wife; their prolonged separation ended when Yu openly confessed his love and chose to remain with her. 47 71 105
• Flender — Fellow member of the Golden Iron Triangle and longtime associate; they cooperated in Shrek Academy’s instruction and management. 24 47
• Yu Yuanzhen — Blue Lightning Tyrant Dragon Clan leader who received Yu upon his return to the clan with Liu Erlong and Su Xiao. 105
• Meng Shu and Chao Tianxiang — Requested that Yu accept their granddaughter Meng Yiran as a disciple; Yu declined, stating that his teaching was limited to theory and soul-ring selection. 34
• Meng Yiran — Shrek student whom Yu trained after declining to take her as a personal disciple. 34 35

Notable Quotes

“There are no useless Martial Souls, only Soul Masters willing to be useless!” 5

“This world is cruel, but I hope you can become soul masters with a sense of justice, who respect life—whether your own or that of others.” 42