Yu Xiaogang

Biodata

Background / History

Clan upbringing and theoretical studies

Yu Xiaogang suffered ridicule within the Blue Lightning Tyrant Dragon Clan after awakening his Martial Soul and eventually left voluntarily. His cultivation later stalled at rank 29. Having abandoned further Soul Power training, he sought recognition through theory, intending to raise students whose achievements would establish his authority as Grandmaster 56.

He spent considerable time in Spirit Hall studying its books and developed a romantic relationship with Bibi Dong. He later abandoned her and fled alone. His subsequent relationship with Liu Erlong—his paternal cousin—is described as an attempt to console himself after leaving Bibi Dong. His attempted marriage to Liu Erlong did not succeed 30 31.

Teaching Tang San at Nuoding Academy

At Nuoding Academy, Yu Xiaogang identified Tang San and Lin Xiao as potential twin-Martial-Soul users because their seemingly weak Martial Souls did not explain their innate full Soul Power. He invited both boys to become his disciples, hoping eventually to produce Titled Douluos and vindicate his reputation 2.

Tang San accepted immediately. Lin Xiao instead questioned Yu Xiaogang’s cultivation rank, challenged the originality of his theories, and declined. Yu Xiaogang responded angrily, warning that Lin Xiao would regret the decision. He subsequently became especially attentive to Tang San, personally providing his daily necessities 2 3.

Over the next six years, Tang San reached rank 29 under his guidance and developed poison-bearing Blue Silver Grass. Yu Xiaogang then recommended that he attend Shrek Academy 16.

The staged attack and Lang Yi

Lin Xiao ordered Xuan Zi to arrange an attack on Yu Xiaogang. Xuan Zi recruited three prisoners—Scarface, Rose, and Lang Yi—promising freedom and payment for their participation. Scarface and Rose cornered Yu Xiaogang, while Lang Yi played the role of a weaker Soul Master attempting to rescue him 18 19.

Yu Xiaogang’s resistance failed. Scarface severely injured Luo Sanpao, causing backlash to its master, and the attackers subjected Yu Xiaogang to abuse and humiliation. Unaware that Lang Yi was their accomplice, Yu Xiaogang became deeply attached to his apparent rescuer and promised to help him become stronger. Xuan Zi recorded the incident for Lin Xiao 18 19.

Yu Xiaogang later brought Lang Yi to Shrek Academy for refuge. When Tang San insulted the newcomer, he sharply reprimanded his disciple and insisted that Lang Yi had saved his life 22.

Shrek’s relocation and reunion with Liu Erlong

After Dugu Yan injured Tang San in the Soul Fighting Arena, Yu Xiaogang offered to overlook the matter if she and Ye Lingling became his students. Their exceptional talent renewed his ambition to prove himself to the clan members who had mocked him 26.

During Shrek’s visit to Heaven Dou Royal Academy, he attempted to invoke his position as an honorary elder of Spirit Hall against Dugu Bo. Before he could do so, Dugu Bo kicked him into a cesspit 28.

The group subsequently sought shelter at Blue Tyrant Academy, where Yu Xiaogang reunited with Liu Erlong. Her jealousy of Lang Yi led to a confrontation. Yu Xiaogang physically shielded Lang Yi, pushed Liu Erlong away, and threatened emotional withdrawal until she apologized. Privately, he recognized that his affection for Lang Yi was becoming romantic 29 30.

Lang Yi later confessed his love. Although Yu Xiaogang initially cited their age difference and his unresolved relationship with Liu Erlong, he ultimately accepted. Xuan Zi secretly recorded the confession as another installment of Lin Xiao’s scheme 31.

Divine reward and the fourth-ring hunt

Tang San later offered Yu Xiaogang a pill received as a divine reward. Lang Yi suggested that it might finally allow him to surpass rank 29. Overwhelmed, Yu Xiaogang embraced Tang San and praised him as his pride, but the provided passages do not show him consuming the pill or breaking through 56.

He encouraged Tang San to reveal his divine backing to the team and use the opportunity to strengthen his leadership. Yu Xiaogang then publicly announced that his disciple had received a god’s inheritance 56 57.

During the subsequent soul-ring hunt, Yu Xiaogang mistook a disguised thousand-year Lone Bamboo for a 4,500-year Black Jade Spirit Bamboo and urged Tang San to absorb it. The resulting fourth skill was a costly pole-vaulting technique rather than the combat enhancement he had promised. Yu Xiaogang admitted responsibility for the misidentification 58 60 61.

Appearance

Yu Xiaogang is identified by a crew cut and a small beard; Xiao Wu uses both features when describing him 19.

• Frequently carries or reads a book 18 31.
• Often adopts a hands-behind-the-back posture when presenting himself as an expert 2 26 28.

Personality

Yu Xiaogang’s central ambition is public vindication. Unable to progress beyond rank 29, he treats the success of gifted disciples as a means of proving his theories and answering the clan members who belittled him. He is especially eager to recruit exceptional talents, promising continent-leading strength even when he knows little about their particular Martial Souls 2 26 56.

He is defensive about his cultivation and status. When Lin Xiao asks his rank, he insists that only his theories matter; when threatened physically, he invokes the Blue Lightning Tyrant Dragon Clan and his connections to Spirit Hall 2 18 19.

His affection for Tang San is nevertheless substantial. He comforts his disciple after the acquisition of a poor third ring, and Tang San experiences his care as the paternal affection missing from his relationship with Tang Hao 22 56. His attachment to Lang Yi likewise becomes intensely protective, despite originating in a fabricated rescue 30 31.

He can manipulate others emotionally and prioritize his reputation. He deliberately performs wounded disappointment to secure Liu Erlong’s apology, and later asks her to handle Ma Hongjun’s dangerous condition partly because a student’s death would damage his own standing 30 63.

Abilities & Skills

Luo Sanpao

Luo Sanpao is a pig-like Martial Soul accompanied by two yellow Soul Rings. Its demonstrated attacks release enormous blasts of flatulence 18.

• Limited output: Luo Sanpao can produce only three blasts before exhausting its available strength 18.
• Area obstruction: Two consecutive skills briefly prevent Scarface and Rose from advancing through a narrow alley 18.
• Countermeasures: The attackers overcome the gas by wearing masks 18.
• Backlash: Severe damage to Luo Sanpao injures Yu Xiaogang as well 19.
• Combat limitations: He cannot scale the alley wall during the attack and is later described as lacking combat experience 18 28.

Martial Soul Theory

Yu Xiaogang possesses extensive book-derived knowledge, including material studied in Spirit Hall. His expertise is useful for familiar Martial Souls, though the narration also describes much of his material as copied or compiled from existing sources 30 58.

• Twin-Martial-Soul deduction: Uses the relationship between innate Soul Power and Martial Soul quality to explain why Tang San and Lin Xiao may possess powerful second Martial Souls 2.
• Research claims: Cites an investigation of 674 Blue Silver Grass Martial Souls; only sixteen possessed Soul Power, none with innate Soul Power above rank one 2.
• Development planning: Recommends control-oriented, poison-bearing Blue Silver Grass for Tang San 2.
• Delayed second-Martial-Soul cultivation: Advises Tang San to cultivate only Blue Silver Grass until becoming a Titled Douluo, reserving his second Martial Soul for rings at least ten thousand years old 61.
• Identification failures: Mistakes the disguised Lone Bamboo for Black Jade Spirit Bamboo, directly contributing to Tang San’s unsuitable fourth skill 60 61.

Team and Soul-Ring Planning

Martial Soul Fusion

• Yu Xiaogang and Liu Erlong possess a Martial Soul Fusion Technique. The provided passages do not identify its name or demonstrate its effects 30.

Relationships

• Tang San — Disciple and intended proof of his theories. Their bond becomes strongly paternal; Tang San later gives him a divine pill in the hope of overcoming his cultivation bottleneck 2 56.
• Lang Yi — Romantic partner and supposed lifesaver. Initially a paid participant in Lin Xiao’s scheme, Lang Yi later confesses his love, which Yu Xiaogang accepts 18 19 31.
• Liu Erlong — Paternal cousin and former romantic interest. She remains devoted to him after their reunion, while his affections increasingly shift toward Lang Yi 30 31.
• Bibi Dong — Former lover. Yu Xiaogang recalls winning her affection through his intelligence before abandoning her and fleeing alone 31.
• Flender — Fellow member of the Golden Iron Triangle and Shrek colleague. He leads the displaced Shrek group to Liu Erlong’s academy despite anticipating an uncomfortable reunion for Yu Xiaogang 29 30.
• Yu Tianheng — Nephew who addresses him as Second Uncle and considers leaving Heaven Dou Royal Academy to study at Shrek after meeting him 26.
• Lin Xiao — Rejected prospective disciple and covert adversary. Lin Xiao challenges his authority and later orchestrates the attacks and recordings targeting him 2 18 19 31.
• Xuan Zi — Organizer and recorder of Lin Xiao’s schemes against him 18 19 30 31.
• Dugu Bo — Hostile powerhouse who humiliates him during Shrek’s visit to Heaven Dou Royal Academy 28.

Notable Quotes

“My rank doesn’t matter. What matters is my theories!” 2

“There are no trash martial souls, only trash Soul Masters.” 22

“Xiao San, your teacher truly hasn’t taught you in vain! You’ll always be your teacher’s pride. Your teacher loves you!” 56