Yu Xiaogang

Biodata

Power Progression

Background and History

Childhood and Cultivation Setback

Yu Xiaogang is the youngest son of Yu Yuanzhen, master of the Blue Lightning Tyrant Dragon Clan. Initially doted on and highly regarded, he loses that standing after his Martial Soul Awakening produces an unusual beast resembling neither a pig nor a dog. His father continues supporting his cultivation, but even substantial resources cannot carry him beyond rank 29 3.

Unable to accept his cultivation limits, he reads the clan’s Martial Soul records and seeks recognition as a theorist. Tang Fan characterizes this pursuit as an attempt to escape humiliation through shortcuts rather than patient research 4.

Arrival in Spirit City and Arrest

Yu Xiaogang arrives in Spirit City as the sky screen appears. Although he does not understand the phenomenon, he publicly declares it a divine warning against Spirit Hall, deliberately using the disturbance to disparage the organization 1.

His position becomes dangerous when Tang Fan identifies him as the source of Bibi Dong’s future tragedy. At this point, neither Yu Xiaogang nor Bibi Dong knows the other. Qian Daoliu orders an investigation, while Yu Yuanzhen sends people to retrieve his son before he implicates the clan 3.

Yu Xiaogang attempts to flee, but Templar Knights arrest him at the city gate. Spirit City’s entry records make him easy to identify. He is brought to the Worship Hall, where the sky screen exposes his cultivation limitations and soul skills 3.

When his interest in Spirit Hall’s records is revealed, he argues that the organization should provide them because his research could benefit all Soul Masters. Golden Crocodile Douluo silences him with soul-power pressure, pinning him to the floor. Qian Daoliu considers him a threat but hesitates to kill Yu Yuanzhen’s son because of the clan’s possible response 4.

Further ridicule prompts clan elders to demand that his name be struck from the clan rolls; Yu Yuanzhen gives no recorded approval. Yu Xiaogang remains alive and unattended in the Worship Hall when next directly shown 19 20.

Appearance

• A picture of his younger self is displayed through Tang Fan’s phone and broadcast across the continent 4.
• Bibi Dong thinks he looks at least ten years older than herself. Tang Fan estimates that the pictured Yu Xiaogang was probably her age 4.

Personality

Yu Xiaogang is strongly motivated by the desire to disprove the judgment that he is worthless. His inability to advance drives him toward theoretical recognition, though Tang Fan presents his methods as impatient and opportunistic 4.

He is openly antagonistic toward Spirit Hall, criticizing it inside its own city before understanding the sky screen. When confronted over its archives, he insists that the potential public value of his research entitles him to access 1 4.

His defiance gives way to alarm when the broadcast places him under scrutiny. He tries to escape Spirit City and loudly protests his arrest, emphasizing that he has committed no offense 3.

Abilities and Skills

Luo Sanpao

Luo Sanpao manifests as an external beast rather than simply possessing Yu Xiaogang’s body. Its two documented soul skills use flatulence and are described as having limited destructive power 3.

• First Soul Skill — Fart Like Thunder, Earth-Shattering Luo Sanpao: One of his two offensive techniques; no detailed combat demonstration is provided 3.
• Second Soul Skill — Fart Like Smoke, Hypnotic Slumber Luo Sanpao: His second documented technique; its name identifies a sleep-inducing function 3.
• Underlying nature: Tang Fan explains that the Blue Lightning Tyrant Dragon underwent an atavistic mutation toward a Radiant Sacred Dragon. In this explanation, Yu Xiaogang cannot withstand the ancestral bloodline’s reversion, leaving Luo Sanpao in its diminished form 20.
• Unrealized potential: The narration suggests that a fully realized Radiant Sacred Dragon could have been a top-tier Martial Soul comparable to the Six-Winged Angel 20.

Trinity Martial Soul Fusion Skill: Golden Sacred Dragon

In the original story recounted by Tang Fan, Yu Xiaogang develops the Golden Sacred Dragon fusion skill with Flender and Liu Erlong 38.

• Borrows Flender’s and Liu Erlong’s strength to release Luo Sanpao’s true form 38.
• Serves as evidence for Tang Fan’s argument that Luo Sanpao’s limitations come from Yu Xiaogang rather than the Martial Soul’s nature 38.
• Has not been shown as an ability available to the detained Yu Xiaogang in the current timeline 20 38.

Martial Soul Theory and Teaching

Yu Xiaogang’s theoretical work draws on records gathered from existing collections. In Tang Fan’s account of the original story, Bibi Dong provides access to much of the material he later consolidates 4 19.

• Ten Core Theories of Martial Souls: His compilation becomes the basis for calling himself a master of Martial Soul Theory 19.
• Teaching: Becomes Tang San’s teacher and later trains the Shrek Seven Devils in the original story 5 33.
• Educational experience: Tang Fan notes that he spends years at Nuoding Academy without participating in teaching, then infers that his later training methods combine Spirit Hall practices with personal conjecture 33.

Strategy

• In the original story, proposes intercepting enemy grain supplies and receives praise as an exceptional strategist. Tang Fan dismisses the plan as elementary 19.
• Ning Fengzhi’s original-story endorsement—“Whoever gains the Grandmaster gains the world”—is exposed on the sky screen. The present Ning Fengzhi speculates that the praise may have reflected Yu Xiaogang’s connection to Tang San rather than his individual ability 19 20.

Original-Story Role Revealed by the Sky Screen

The following events belong to the Douluo Continent story discussed by Tang Fan, not to Yu Xiaogang’s established experiences in the current timeline 3 5.

Bibi Dong and Spirit Hall

Bibi Dong falls in love with Yu Xiaogang and uses her authority as saintess to give him access to Spirit Hall’s collected Martial Soul records. She also reveals secrets concerning the Six-Winged Angel and its soul-bone set. Tang Fan suspects that Yu Xiaogang initially approaches her to obtain the records, while explicitly acknowledging that the book does not state this motive outright 4.

Bibi Dong brings him on Spirit Hall’s disastrous expedition against Sea God Island. Both survive an operation in which fewer than one hundred of two thousand dispatched Soul Masters return, with two Titled Douluo also lost 4.

When Qian Xunji orders their separation, Bibi Dong declares that she would leave Spirit Hall to remain with Yu Xiaogang. The present Bibi Dong rejects this behavior and repeatedly distinguishes herself from her counterpart 5.

Tang Fan later offers a speculative explanation in which the Rakshasa God influences Bibi Dong and Qian Xunji to cultivate hatred and tragedy. This is presented as a conspiracy theory, not a confirmed explanation of the romance 10.

Flender and Liu Erlong

After Qian Xunji drives him out of Spirit City, Yu Xiaogang meets Flender and Liu Erlong. They become close friends and develop their three-person Martial Soul fusion skill 38.

Liu Erlong falls in love with him, and they prepare to marry. On their wedding night, Yu Luomian arrives and reveals that Liu Erlong is his illegitimate daughter, making her Yu Xiaogang’s cousin. The supplied account stops at this revelation 38.

Tang San and the Sea God Inheritance

Yu Xiaogang becomes Tang San’s teacher. His knowledge of Sea God Island later gives Tang San the opportunity to travel there and obtain the Sea God Inheritance 5.

Relationships

• Yu Yuanzhen — Father and clan master. Finances his cultivation and attempts to have him brought home after the broadcast makes him a liability 3.
• Yu Luomian — Paternal uncle and Liu Erlong’s father; reveals the cousins’ relationship on their wedding night in the original story 38.
• Bibi Dong — Original-story lover and source of privileged research material. In the current timeline, she has never met him and reacts to the revelations with disgust and hostility 3 4 19.
• Flender — Original-story close friend and partner in the Golden Sacred Dragon fusion skill 38.
• Liu Erlong — Cousin, original-story romantic partner, and fusion-skill partner 38.
• Tang San — Student in the original story; benefits from Yu Xiaogang’s knowledge of Sea God Island 5.
• Qian Xunji — Challenges his designs on Spirit Hall’s archives in the current timeline; expels him from Spirit City in the original story 4 38.
• Qian Daoliu — Orders his investigation and considers killing him, but weighs the consequences of antagonizing his father’s clan 3 4.
• Tang Fan — Publicly exposes his background and original-story actions through the sky screen; frequently criticizes his research, strategy, and relationship with Bibi Dong 3 4 19 20.

Notable Quotes

“This is undoubtedly a warning sent down by the gods. Spirit Hall has lost the hearts of the people and truly needs to reflect on itself.” 1

“My research into Martial Soul Theory could benefit the entire Soul Master World. Shouldn't Spirit Hall provide some Martial Soul records?” 4

“There are no trash Martial Souls, only trash Soul Masters.”
— His best-known saying in the original story, quoted by Tang Fan 19