Yu Xiaogang

Biodata

Feature	Information
Name	Yu Xiaogang (玉小刚)
Alias(es)	Master; Elder Yu
Gender	Male
Affiliation	Shrek Academy; Spirit Hall (elder)
Occupation/Role	Soul master teacher; Tang San's teacher
Status	Alive
First Appearance	3

Background / History

Yu Xiaogang recognizes Tang San's exceptional potential, particularly his Twin Martial Souls and Innate Full Soul Power, and accepts him as a disciple. He brings Tang San to register at the academy and introduces his theories on Twin Martial Souls. His standing among fellow teachers is poor: they openly ridicule his martial-soul theories and call his supposed “invincibility” merely theoretical. 3 4

Despite this reputation, he becomes a central instructor for Shrek’s students. He analyzes opponents, oversees training, and urges the group not to fall too far behind Zhang Tianyu’s strength. The students acknowledge that his guidance improves their cultivation faster than training alone. 82 86 181

At Heaven Dou City, Yu Xiaogang reunites with Liu Erlong after twenty years apart. His unusually cold behavior and later jealous outbursts expose resentment over his weak mutated Martial Soul and past expulsion from his clan, deeply damaging their relationship. 95 97

His former connection with Bibi Dong also collapses after he visits Spirit City seeking knowledge about Twin Martial Souls. Under the effects of external tricking items, he makes statements that Bibi Dong interprets as proof of manipulation, hypocrisy, and concealed motives. She refuses to share her method of overcoming the Twin Martial Souls problem and declares their past affection finished. 169 172

Personality

Yu Xiaogang is typically composed, stern, and analytical. During tactical discussions, he maintains a calm, confident manner and focuses on training plans, enemy intelligence, and the growth of his students. 82 86

His composure is repeatedly undermined by humiliation, unexplained behavioral changes, and physical misfortune. These incidents leave him suspicious, self-doubting, and increasingly conscious of his own weakness. He secretly investigates Zhang Tianyu, Tang San, and especially Xiao Wu, but lacks proof and recognizes that he is too weak to confront Xiao Wu directly. 141 202 203

He retains concern for his students even after being mistreated and embarrassed. Following his recovery from Wang Bing’s abuse, he refuses to pursue vengeance and instead asks the students to focus on their matches. 231

Abilities & Skills

Martial Soul Theory and Teaching

Yu Xiaogang is known for his unconventional martial-soul theories and for instructing young soul masters.

• Identifies Tang San’s Twin Martial Souls and takes him as a disciple. 3 4
• Provides analysis of opponents and training direction for Shrek’s students. 82 86
• His theories are publicly dismissed by other teachers as ridiculous or impractical. 3
• Bibi Dong accuses him of seeking her Twin Martial Souls knowledge to present it as his own theory. 170

Tactical Analysis

Yu Xiaogang can assess team strength and formulate training priorities.

• Reviews Imperial Fighting Team information with Shrek before their battle. 82
• Warns students that their gap with Zhang Tianyu requires continued special training. 86
• Weighs whether Zhang Tianyu should compete in the Qualifying Tournament, fearing the team could become overly reliant on him. 254

Elder Token

Yu Xiaogang possesses an Elder Token associated with Spirit Hall.

• Tang San considers Yu Xiaogang uniquely capable of mobilizing Spirit Hall personnel because of the token. 79
• After his falling-out with Bibi Dong, Spirit Hall branch halls outwardly agree to help him but deliberately fail to act. 186

Relationships

• Tang San — Disciple. Yu Xiaogang recognizes Tang San’s talent early and trains him; their bond endures repeated misunderstandings, accusations, and reconciliations. Tang San later rescues him from Wang Bing’s abuse. 3 262 225
• Zhang Tianyu — Student and apparent ally. Zhang Tianyu repeatedly presents himself as concerned for Yu Xiaogang’s welfare, while secretly arranging many of the incidents that damage Yu Xiaogang’s reputation and safety. 141 203 313
• Flender — Longtime associate and fellow Shrek teacher. Flender defends and monitors Yu Xiaogang during his abnormal behavior, but their relationship becomes strained by Yu Xiaogang’s actions. 69 146 175
• Liu Erlong — Former lover who waited twenty years for him. Their reunion deteriorates after Yu Xiaogang’s jealous outbursts and altered behavior. 95 97 116
• Bibi Dong — Formerly close acquaintance. Their relationship is severed after Yu Xiaogang’s visit to Spirit City and Bibi Dong’s rejection of his request for Twin Martial Souls knowledge. 170 172
• Zhao Wuji — Shrek colleague. Zhao Wuji witnesses several of Yu Xiaogang’s public behavioral incidents and explains the apparent confession to Flender to him after the effect ends. 198 251
• Wang Bing — Caregiver hired for Yu Xiaogang by Tang San. Wang Bing maintains a professional façade while secretly abusing Yu Xiaogang during his period of extreme sloth and paralysis. 222 225

Story Role / Major Arcs

Tang San’s Apprenticeship

Yu Xiaogang accepts Tang San as his disciple after recognizing his extraordinary potential. He also helps complete Tang San and Zhang Tianyu’s registration process. 3 4

Shrek Instructor

He serves as a teacher and strategist for Shrek Academy, directing special training and analyzing the Imperial Fighting Team before Shrek’s confrontation with them. 82 86

Liu Erlong Reunion

Upon arriving at Blue Tyrant Academy, Yu Xiaogang reunites with Liu Erlong, who has waited for him for twenty years. His hostile, jealous behavior turns the reunion into a rupture. 95 97

Spirit City Fallout

Yu Xiaogang visits Bibi Dong to seek information on Twin Martial Souls. His altered statements and attempts to explain himself instead convince Bibi Dong that he has exposed his true thoughts, ending their remaining bond. 169 172

Public Humiliation and Isolation

A succession of tricking-item effects causes Yu Xiaogang to behave strangely in public, including apparent confessions, altered speech, repeated interruptions, and other humiliating incidents. These events lead others to suspect that he is being controlled or targeted. 198 251 288 292

Sloth and Wang Bing’s Abuse

Affected by extreme sloth, Yu Xiaogang becomes unable to move or speak properly. Tang San hires Wang Bing as a caregiver, unaware that Wang Bing is abusing him. Tang San eventually interrupts an attempted stabbing and later helps clean and care for Yu Xiaogang after the abuse is discovered. 220 225 228

Spirit Hall Residence

After the tournament, Yu Xiaogang remains in Spirit City at Zhang Tianyu’s suggestion. Though he initially wishes to avoid Bibi Dong, he accepts the arrangement and spends his days resting, observing Zhang Tianyu’s cultivation, and offering guidance. 300 304

Trivia

• Yu Xiaogang is repeatedly described as the weakest member of Shrek’s senior staff, making him an easy target for those acting against the academy. 71
• He becomes so accustomed to bizarre misfortunes that, by Chapter 332, a lack of abnormal incidents makes him uneasy. 332
• He considers weakness “the greatest original sin” after realizing he cannot safely confront Xiao Wu over his suspicions. 202