Yu Xiaogang

Biodata

Background / History

Search for a Cure

Yu Xiaogang was the young master of the Blue Lightning Tyrant Dragon Clan, but his Martial Soul mutation prevented his Soul Power from breaking through to rank thirty. Seeking a solution, he traveled to Spirit City and enrolled in Spirit Hall Academy to use its central library. His access was restricted to the first three floors, while the higher floors were reserved for Spirit Hall’s upper ranks 8.

After learning about the holy maiden, Bibi Dong, he engineered repeated encounters and staged rescue scenarios to win her affection. She subsequently took him to the fourth and fifth floors. He found no cure there and eventually left Spirit City after Qian Xunji moved against him. He portrayed himself as a tragic lover, leaving Bibi Dong believing that she had harmed his prospects 8.

The Blue Lightning Tyrant Dragon Clan knew about and supported his approach to Bibi Dong. Yu Yuanzhen later acknowledged that the clan had hoped gaining influence over her would eventually give it leverage over Spirit Hall 40.

Golden Iron Triangle

After leaving Spirit City, Yu Xiaogang met Flender and Liu Erlong and formed the Golden Iron Triangle. He became known as the group’s “corner of wisdom,” a reputation that brought prestige to his clan 11 24.

According to Chu Xuan’s later account, Yu Xiaogang recognized Liu Erlong as his younger paternal cousin upon seeing her Martial Soul. He concealed their relationship so that he could study her Mutated Martial Soul, courted her, and went through wedding rites with her. Yu Luomian arrived on their wedding night and stopped them. The clan subsequently suppressed discussion of the scandal, leaving the wider Soul Master World unaware of why the Golden Iron Triangle had disbanded 24.

Life in Nuoding City

Yu Xiaogang remained away from his clan for years and lived in Nuoding City for decades. At Nuoding Academy, he held a teaching position and received food and lodging through his longstanding friendship with the academy head 11 23 25.

He trained Tang San for six years, regarding the exceptionally talented disciple as his opportunity to establish his own reputation. As Tang San approached graduation and an expected move to Shrek Academy, Yu Xiaogang remained reluctant to abandon that investment, even after Spirit Hall’s announcements threatened to expose him 20 23 26.

Exposure and Imprisonment

Collapse of His Scholarly Reputation

Chu Xuan exposed Yu Xiaogang’s manipulation of Bibi Dong before Spirit Hall’s leadership. When she demanded proof, he used the Wheel of Time to display Yu Xiaogang’s past. The projection showed his efforts to obtain restricted library access, his calculated courtship, and his private mockery of Bibi Dong. It confirmed that his professed affection had been a means of researching his mutation 8 9.

Bibi Dong ordered Spirit Hall to publish the source materials behind the Ten Core Competencies of Martial Soul, supported by Yu Xiaogang’s preserved borrowing records. The announcement established that he had compiled library material rather than produced the original research he claimed. Yu Yuanzhen condemned him for disgracing the clan, while Bibi Dong also ordered attacks on the clan’s businesses 10 11.

When the news reached Nuoding City, Yu Xiaogang noticed increasingly hostile looks in public. He considered leaving town but stayed because of Tang San, convincing himself that Bibi Dong would not personally pursue him 20.

Arrest at Nuoding Academy

Bibi Dong encountered Yu Xiaogang at Nuoding Academy’s gates, had him restrained, and repeatedly slapped him before onlookers. He pleaded that their past was a misunderstanding. When Chu Xuan began discussing Liu Erlong, Yu Xiaogang interrupted him and was kicked in the face, suffering a broken nose and losing several teeth 24.

After Chu Xuan publicly recounted the Liu Erlong scandal, Bibi Dong ordered Yu Xiaogang taken to Spirit Hall for interrogation. Nuoding Academy’s head then dismissed him and permanently barred him from returning 24 25.

Interrogation and Threats Against His Clan

Bibi Dong accused Yu Xiaogang of stealing and distributing confidential library material, deceiving women, and harboring Tang Hao’s son. He initially denied wrongdoing and argued that she herself had granted him library access. When she identified Tang San’s father and Twin Martial Souls, he tried to deter her by invoking Tang Hao’s strength 26.

Bibi Dong refused to kill him immediately. Instead, she promised to destroy the people and clan he valued while making him watch. Yu Xiaogang threatened that the Upper Three Sects might unite against Spirit Hall, but the warning failed to change her plans 27.

Dungeon and Torture

Yu Xiaogang and Tang San were transported to Spirit City and imprisoned at Spirit Hall’s headquarters. Their cells faced one another. Yu Xiaogang understood that Bibi Dong intended to keep him alive until he had witnessed the Blue Lightning Tyrant Dragon Clan’s destruction 32 33.

During a dungeon visit, Chu Xuan responded to Yu Xiaogang’s hostile questioning by having him taken to a punishment chamber. He also threatened to let Liu Erlong visit after learning the truth. On Chu Xuan’s orders, jailers tortured Yu Xiaogang with an iron brush while being instructed not to kill him 33 34.

He was eventually returned to his cell covered in blood, barely conscious and unable to speak. A healing-type Soul Master was expected to treat him so that he would not die from his injuries 36.

Appearance

• Earlier presentation: Cultivated a high-spirited scholarly image, combining boasts of wisdom with a melancholy manner that attracted Bibi Dong 24.
• Life in hiding: Spirit Hall’s investigation described him as resembling a lonely old man 23.
• After imprisonment: Lost several teeth, suffered a broken nose, and was later left blood-covered and barely recognizable after torture 24 25 36.

Personality

Yu Xiaogang places great importance on recognition and scholarly prestige. He views Tang San’s future achievements as a means of proving himself, and the exposure of his borrowed research devastates him because it destroys the reputation he hoped to secure 20 23 27.

His pursuit of a cure is marked by calculated manipulation: he exploits Bibi Dong’s feelings for library access and, in Chu Xuan’s account, conceals his kinship with Liu Erlong to facilitate research. Under direct threat, his proud scholarly manner gives way to denial, pleading, and attempts to invoke stronger protectors. Even in prison, he persists in the mistaken belief that Chu Xuan is Bibi Dong’s son 9 24 26 33.

Abilities & Skills

Soul Master Cultivation

• Remains a rank twenty-nine Soul Grandmaster, with his Martial Soul mutation blocking advancement to rank thirty 8 24.
• Is powerless to resist Bibi Dong’s Titled Douluo pressure or escape Spirit Hall’s guarded dungeon 25 29.

Martial Soul Research and Instruction

• Compiled the Ten Core Competencies of Martial Soul using Spirit Hall’s central library materials; preserved borrowing records later exposed those sources 8 11.
• Served as the Golden Iron Triangle’s intellectual member and instructed Tang San for six years 11 26.
• Has no practical experience cultivating Twin Martial Souls and recognizes Bibi Dong as the experienced cultivator whose guidance he needs 23.

Relationships

• Bibi Dong — Former romantic partner whom he deliberately courted for restricted library access. After seeing proof of his deception, she becomes his captor and seeks prolonged revenge 8 9 27.
• Tang San — Disciple of six years and Yu Xiaogang’s hoped-for proof of his teaching ability. They are imprisoned in opposite cells 26 33.
• Liu Erlong — Younger paternal cousin and former romantic partner. Chu Xuan exposes his alleged use of their relationship to research her mutation 24.
• Flender — Fellow member of the Golden Iron Triangle, formed after Yu Xiaogang left Spirit City 24.
• Yu Yuanzhen — Father, who condemns Yu Xiaogang for disgracing the clan but later admits that the clan supported his approach to Bibi Dong 11 40.
• Yu Luomian — Paternal uncle and Liu Erlong’s father; interrupted their wedding and later proposed publicly expelling Yu Xiaogang from the clan 9 24 40.
• Chu Xuan — Exposes his past, helps bring about his arrest, and orders his torture. Yu Xiaogang fears and hates him while incorrectly identifying him as Bibi Dong’s son 9 24 33 34.
• Nuoding Academy head — Longtime friend who supported his residence at the academy, then dismissed and permanently banned him after his exposure 25.