Yu Xiaogang

Biodata

Power Progression

Appearance

Yu Xiaogang’s sky-screen counterpart is introduced as a young man wearing an old-fashioned gray robe, with a crew cut and a bushy beard 4.

• Original-timeline clothing: A black robe that he is described as wearing for an entire year without changing 1.
• Disguise: Uses a hooded coat while fleeing Spirit City and later wears a mask when rescuing Bibi Dong 4 11.
• Later injuries: His original-timeline self is castrated and develops urinary problems after treatment; his sky-screen counterpart eventually loses an arm and a leg 15 16 42.

Personality

Yu Xiaogang places his reputation as a theorist above contradictory evidence. He insists that his theories cannot be wrong, dismisses Qian Xunji’s extraordinary Soul Rings as illusions, and claims that raising Tang San into a Titled Douluo will vindicate him. When Xiao Wu introduces Soul Shock—a phenomenon he has never heard of—he immediately pretends that he already understands it 9 13.

His responses to the sky screen repeatedly shift according to whether its revelations benefit him. He rejects his counterpart’s flight from Spirit City as the conduct of a different person, then claims credit when that same counterpart returns to rescue Bibi Dong. Once the rescue’s exploitative motive becomes clear, he again insists that the two versions of himself are different 4 11.

The sky-screen timeline exposes his willingness to exploit Bibi Dong’s affection, knowledge, and bloodline. He initially reassures her while leaving her responsible for their household, then becomes openly abusive when their living conditions deteriorate. His desire to produce talented children ultimately takes precedence over her consent and well-being 17 19 41 42.

Despite repeatedly declaring that he will destroy Spirit Hall, his original-timeline self depends on Tang San to accomplish that revenge. Prolonged imprisonment and torture leave him increasingly unstable; after Bibi Dong becomes a god, he claims credit for her success and expects her to rescue him, forgetting that she ordered his punishment 15 16 19 37.

Abilities & Skills

Luo Sanpao

Luo Sanpao is Yu Xiaogang’s Martial Soul, depicted alongside him as a pig-like creature. Its demonstrated attack releases a powerful, foul-smelling cloud 11.

• Named attack: “Farts like thunder, Earth-Shattering Luo Sanpao!” 11.
• Demonstrated effect: Repels a wolf Soul Beast less than ten years old; the fumes also render Bibi Dong unconscious 11.
• Combat limitation: Yue Guan interrupts Yu Xiaogang’s attempted attack with a slap before he can complete it 15.

Martial Soul Theory

Yu Xiaogang presents the Ten Core Competencies of Martial Soul as the result of decades of work. Qian Xunji exposes its dependence on Spirit Hall’s library, and Yu Xiaogang acknowledges receiving material from Bibi Dong while denying responsibility for her unauthorized disclosure 3 4.

Teaching and Training

Yu Xiaogang’s principal student is Tang San, whose future achievements he expects to prove the value of his theories 9.

• Physical conditioning: Uses stone-carrying exercises. Ning Rongrong questions how much of the students’ improvement comes from this training rather than natural growth 3.
• Tang San’s development: Supports a poison-oriented approach to Blue Silver Grass; Tang San also personally favors poison 13.
• Twin Martial Souls: Claims that some of Bibi Dong’s early cultivation advice came from him, although this is stated during his later mental deterioration 37.

Equipment / Items

• Storage Soul Tool — Used by his sky-screen counterpart to take shelves of Spirit Hall books before fleeing Spirit City 4.
• Spirit Hall texts — The source of much of his theoretical knowledge; he continues reading the books during his secluded life with Bibi Dong 4 17 30.
• Hooded coat and mask — Used to conceal his identity outside Spirit City 4 11.

History

Original Timeline

Exposure at Shrek Academy

When the sky screen reveals the young Bibi Dong pleading for permission to marry him, Yu Xiaogang concludes that she never betrayed their love and blames Qian Xunji for their separation. Tang San praises his ability to win over Spirit Hall’s Holy Maiden, while the other Shrek members react with disbelief 1.

His standing deteriorates as the broadcast exposes both the source of his theories and his counterpart’s willingness to abandon Bibi Dong. Ning Rongrong openly challenges his reputation, while Tang San repeatedly defends him. Although Yu Xiaogang insists that receiving Spirit Hall’s secrets was Bibi Dong’s decision, his eagerness to distance himself from her introduces doubt even into Tang San’s loyalty 3 4.

After learning that the Ice and Fire Yin Yang Well contains herbs capable of evolving Martial Souls, he urges the Shrek group to reach it first so that his own Martial Soul can evolve. During their journey toward Sunset Forest, his repeated attacks on Qian Xunji and failed predictions further erode his authority 6 9 13.

Castration and Loss of Support

The sky-screen counterpart’s plan to exploit Bibi Dong for talented children provokes the original Pope Bibi Dong into ordering Yu Xiaogang’s castration. When Yue Guan arrives at the Shrek group’s inn, Yu Xiaogang remains hidden in the rubble even while Flender risks his life trying to protect him. Ma Hongjun reveals his location rather than allow Flender to die for him 11 15.

Tang San attempts to intercept Yue Guan’s attack with a hidden weapon but fails. Yue Guan castrates Yu Xiaogang and orders Flender to keep him alive. After treatment, Yu Xiaogang suffers urinary complications and vows to use Tang San’s future strength to destroy Bibi Dong and Spirit Hall 15 16.

Imprisonment Outside Spirit City

Yue Guan subsequently has Yu Xiaogang taken away, with neither Flender’s group nor Tang San intervening. He orders him hung from a tree outside Spirit City under continuous guard, with a healing-type Soul King assigned to prevent his death 17.

Yu Xiaogang is chained through the shoulder blades and subjected to public humiliation and repeated mutilation. His threats that his disciple will become a god and avenge him prompt Bibi Dong to order Tang San’s capture as well 19.

After a month suspended from the tree, his limbs have begun to deform. By the time Bibi Dong becomes the Rakshasa God, he has lost touch with the cause of his imprisonment and calls for “Dong’er” to rescue him, claiming that her divine achievement owes something to his advice 30 37.

Sky-Screen Timeline

Flight and Calculated Rescue

As Qian Xunji judges Bibi Dong, Yu Xiaogang packs Spirit Hall’s books into his Soul Tool and flees on horseback, blaming her for endangering him 4.

He later returns to save the crippled Bibi Dong from a wolf. Once she is unconscious, he reveals that he resents losing access to Spirit Hall’s theories but still values her bloodline. He intends to bring a gifted son back to the Blue Lightning Tyrant Dragon Sect and thereby prove that he is not worthless 11.

Life in the Valley

Yu Xiaogang takes Bibi Dong to a secluded valley, where she grows vegetables, gathers firewood, cooks, and washes their clothes while he reads. He plans to remain hidden until they have a child, expecting the child’s talent to secure the sect’s protection 17 19.

Fear of discovery keeps him from purchasing supplies even as they run out of rice. Bibi Dong eventually confronts him over their poverty, his refusal to work, and his inability to consummate their relationship. He finally leaves to buy rice but returns without other basic cooking supplies 30 41.

Abuse and Return to the Sect

Their relationship collapses into open hostility. Yu Xiaogang blames Bibi Dong for failing to conceive, strikes her when she challenges him, and declares that other men of his clan can father the children he wants. He prevents her suicide attempt and forces her into the sect’s reproductive scheme 41.

With Yu Yuanzhen’s cooperation, Bibi Dong is confined in an underground chamber and subjected to repeated sexual assault intended to produce talented descendants. Yu Xiaogang continues the plan after her mental collapse, arguing that enough children will eventually produce an heir with the Blue Lightning Tyrant Dragon Martial Soul 42.

Yu Yuanzhen later reports that Bibi Dong is pregnant. To settle Spirit Hall’s outstanding punishment, he personally severs one of Yu Xiaogang’s arms and one of his legs before Yue Guan and Gui Mei. Yu Xiaogang accepts the mutilation as worthwhile if the scheme remains concealed and produces children 42.

Relationships

• Bibi Dong — Former lover in the original timeline; she becomes his captor after the broadcasts expose his counterpart’s motives. In the sky-screen timeline, he exploits her affection and knowledge before becoming her abuser 1 4 11 19 41 42.
• Tang San — Disciple and principal hope for vindication and revenge. Tang San repeatedly defends him, rescues him after his collapse in a latrine, and tries to stop his castration, but later watches without intervening when Spirit Hall takes him away 3 11 14 15 17.
• Yu Yuanzhen — Father and sect master. In the sky-screen timeline, he seeks to protect the sect from Qian Xunji’s anger, collaborates in the scheme involving Bibi Dong, and personally carries out Yu Xiaogang’s limb amputations 11 14 42.
• Flender — Fellow member of the Golden Iron Triangle. Initially sympathetic, he grows disillusioned by Yu Xiaogang’s conduct; his attempt to shield him from Yue Guan nearly costs him his life 1 9 15.
• Liu Erlong — A woman Yu Xiaogang previously abandoned. Flender recognizes a parallel between that abandonment and the sky-screen flight from Bibi Dong 9 11.
• Ning Rongrong — One of his most outspoken critics at Shrek, questioning both his training and the originality of his theories 3 4.
• Yue Guan — Bibi Dong’s enforcer in the original timeline; castrates, imprisons, and tortures Yu Xiaogang while ensuring that he remains alive 15 17 19.
• Qian Xunji — Opponent whose sky-screen judgments expose Yu Xiaogang’s borrowed theories and concealed motives. Yu Xiaogang repeatedly denies his displayed abilities and condemns his treatment of Bibi Dong and the sect 3 4 9 13.

Notable Quotes

“There are no trash Martial Souls, only trash Soul Masters.” 3

“Just wait and see. Once I’ve trained Xiao San into a Titled Douluo, my theories will naturally be proven.” 9

“The sky screen is the sky screen, and reality is reality.” 11