Xiao Yu

Biodata

Feature	Details
Name	Xiao Yu (萧宇)
Alias(es)	Mo Shang
Species/Race	Human
Gender	Male
Age	18 96
Affiliation	Xiao Clan; disciple of Medicine Elder; Jia Nan Academy; Pan's Gate
Occupation/Role	Alchemist; cultivator; Xiao Yan's senior brother and system-designated supporting character
Status	Alive
First Appearance	Chapter 1 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Sixth Stage Dou Power	1	Tested as above average among the Xiao Clan disciples shortly after transmigrating.
Sixth Stage Dou Qi	3	His constitution upgrade raised his Dou Qi; he also received the Pure Yang Blazing Fire Body and Sun Devouring Technique.
Seventh Stage Dou Qi	4	Recorded by the system after obtaining the Sun Devouring Technique.
Eighth Stage Dou Qi	5	Advanced by completing the mission to publicly support Xiao Yan during Nalan Yanran's repudiation.
One-Star Dou Zhe	10	His strength is recognized during the Xiao Clan's coming-of-age ceremony.
Six-Star Dou Zhe	13	Rose from one star after soul tempering and absorbing the incomplete Bone Chilling Flame.
Seven-Star Dou Zhe	18	Advanced after absorbing system-provided Dou Qi.
Eight-Star Dou Practitioner	29	Recovered and strengthened following the mission involving Yun Yun and the Amethyst Spirit Crystal.
Nine-Star Dou Practitioner → Two-Star Dou Master	30	Claimed mission rewards and crossed two stages in a single day.
Four-Star Dou Shi	54	System panel records him as a third-tier alchemist alongside this cultivation level.
Temporary Five-Star Da Dou Shi	61	Used a Da Dou Shi Combat Power Card; stopped at the highest level his body could endure.
Five-Star Dou Shi	62	Permanent cultivation advanced after unifying Desert City's mercenary groups.
Peak Nine-Star Dou Shi	80	Reached the brink of the next major realm after a system reward.
Grand Dou Master	83	Broke through through medicinal-herb consumption and system assistance.
Four-Star Da Dou Shi	93	Stabilized the realm after refining and consuming two Purple Heart Barrier-Breaking Pills.
Five-Star Da Dou Shi	101	Reached this level after claiming a system reward and absorbing its Dou Qi.
Eight-Star Da Dou Shi	121	System reward increased his Dou Qi value and elevated him to eight stars.
One-Star Dou Ling	136	Received the Nine Revolutions Sun Devouring Technique and a Spirit Puppet upon advancing.

Background / History

Xiao Yu was a modern man and devoted reader of Battle Through the Heavens before transmigrating to the Dou Qi Continent. Knowing Xiao Yan's future importance, he chose to attach himself to Xiao Yan rather than pursue a protagonist's role of his own. 1

Upon arrival, he awakened the God-Level Supporting Character System. Its ultimate mission requires him to help Xiao Yan unify the Dou Qi Continent within ten years; failure means his intelligence will be extracted. He initially built trust with Xiao Yan by encouraging him after the latter's humiliating cultivation test. 1

During Nalan Yanran's repudiation of Xiao Yan, Xiao Yu rejected the Qi-Gathering Powder offered as compensation and defended both Xiao Yan's dignity and the Xiao Clan's future. He subsequently joined Xiao Yan in accepting Medicine Elder as their master, becoming Xiao Yan's senior brother. 5

After leaving Wutan City, Xiao Yu absorbed the incomplete Bone Chilling Flame and gained a portion of Medicine Elder's alchemical experience and combat knowledge through soul tempering. In Green Mountain Town, he saved Little Medical Fairy from a Rock Serpent, explored a hidden cave with her, and helped her escape the Wolf Head Mercenary Group. 13 14 17

Xiao Yu later aided Yun Yun—then using the identity Yun Zhi—in acquiring the Purple Crystal Winged Lion King's Amethyst Spirit Crystal. The mission rewarded him with the Earth-rank spear technique Cloud Crane Shadow. 20 29

Rather than remain constantly at Xiao Yan's side, Xiao Yu chose an independent path to gather opportunities and grow stronger. Even so, he continued aiding Xiao Yan from afar, including arranging for the Green Lotus Core Flame map to reach him and ordering Han Jue to protect the Xiao Clan. 47 64 93

After being captured by Eagle Protector, Xiao Yu was taken to the Black-Corner Region and forced into contact with the Soul Hall. He concealed his identity, infiltrated the Black Skeleton Tomb with the Shadowless Mask, and eventually escaped to Jia Nan Academy. 88 90 110

At Jia Nan Academy, Xiao Yu defeated Bai Shan, performed prominently in the Inner Academy Selection Tournament, and led the freshmen during the Fire Energy Hunting Competition. After defeating Luo Hou and advancing to Dou Ling, he helped organize protection for new students while leaving Pan's Gate leadership to Xiao Yan. 106 133 137 139

Personality

Xiao Yu is calculating and pragmatic, frequently evaluating situations through his knowledge of future events, his system missions, and the strength of those around him. He prefers preparing contingencies, gathering intelligence, and avoiding unnecessary risks over direct confrontation. 20 90 110

Despite his opportunism, he is consistently protective of people he considers his own. He publicly defended Xiao Yan when the Xiao Clan wished to accept humiliating compensation, protected Little Medical Fairy during their escape from Green Mountain Town, and deployed Han Jue to safeguard the Xiao Clan. 5 17 93

He has a relaxed, occasionally irreverent manner, especially when speaking to the system or refusing responsibilities he considers troublesome. His decision to make Xiao Yan lead Pan's Gate stems partly from his belief that Xiao Yan, as the protagonist, is better suited to the role. 30 139

Abilities & Skills

God-Level Supporting Character System

Xiao Yu's primary source of accelerated growth is the system, which issues missions connected to supporting Xiao Yan and rewards completion with experience, Dou Qi, techniques, items, and special functions. 1 5

• Unlocks modules including the Event Shop, Character Favorability Module, and summoning module. 3 18 30
• Tracks others' favorability toward Xiao Yu, allowing him to assess trust and hostility. 18 20
• Uses Source Coins for shop purchases and summons, though Xiao Yu considers their prices excessive. 30 63
• Has displayed anomalies and cryptic warnings, leading Xiao Yu to doubt the truth of its stated punishments. 101
• Its final mission imposes a ten-year limit to help Xiao Yan unify the continent. 1

Pure Yang Blazing Fire Body & Heavenly Flames

Xiao Yu possesses the Pure Yang Blazing Fire Body, a constitution suited to fire-attributed cultivation and Heavenly Flames. 3

• Has used the incomplete Bone Chilling Flame, Purple Flame, and Green Lotus Core Flame. 13 80
• Can withstand the Green Lotus Core Flame without injury due to his physique. 80
• Uses flame-infused spear attacks that heavily suppress frost-attributed opponents. 134
• Wields Chaos Flame, a flame born alongside his physique and controlled through soul power. 136
• Sustaining Bone Chilling Flame consumes Dou Qi quickly; at lower realms, he used its frightening appearance to intimidate enemies rather than prolong combat. 17

Alchemy

Xiao Yu received alchemist talent from an early system mission and later gained part of Medicine Elder's accumulated alchemical experience through soul tempering. 3 13

• Certified as a third-tier alchemist by the time he reached four-star Dou Shi. 54
• Refined two Purple Heart Barrier-Breaking Pills and used them to advance to four-star Da Dou Shi. 93
• Reached fifth-tier alchemist status through system rewards. 121 136
• His flame control is strengthened by repeated Heavenly Flame fusion and soul tempering. 50

Cultivation Techniques

• Sun Devouring Technique — A high Xuan-tier fire-attributed cultivation method obtained from his beginner gift pack. 3
• Nine Revolutions Sun Devouring Technique — A high Earth-rank technique that substantially improves Dou Qi circulation speed and storage capacity. 136

Combat Techniques

• Cloud Crane Shadow — Low Earth-rank spear technique earned for helping Yun Yun obtain the Amethyst Spirit Crystal; reached Great Mastery. 29 62 136
• Void Blade — A technique Xiao Yu trained to pair with the Void-Breaking Blade. 103 136
• Shadow Prison — An Earth-tier intermediate utility technique that boosts his speed within a formed domain and can create a prison to restrain opponents. 125
• Golden Eyes — Lets him inspect opponents' cultivation levels, as demonstrated against the White Fiend Team. 121 133
• Startling Dragon Step — A Xuan-tier movement technique used for abrupt directional changes and evasive movement. 13 17
• Raging Flame Palm, Absorbing Palm, and Eight Extremes Collapse — Earlier combat techniques mastered through training, system rewards, and inherited experience. 13 136

Soul Imprint Technique

The Great Dou Shi Soul Imprint Technique allows Xiao Yu to enslave a Da Dou Shi-level expert, a capability beyond ordinary realm limitations. 55

• Used to establish control over Han Jue and unify Desert City's major mercenary groups. 55 58
• At four-star Dou Shi, he could imprint only one Da Dou Shi-level target. 55
• Attempting additional imprints risks failure and damage to his own soul. 55

Spirit Puppet / Mo Shang

After becoming a Dou Ling, Xiao Yu received a Spirit Puppet usable only by himself. He used it to create the identity of Mo Shang, a separate entity carrying his soul aura. 136

• Transferred Eagle Protector's Soul Hall mark from himself to Mo Shang. 136
• Equipped Mo Shang with supplies and allowed him to wield Chaos Flame. 136
• Delayed dividing his soul origin further, judging soul-related actions too dangerous to undertake carelessly. 137

Equipment / Weapons / Items

• Thousand Flame Spear — Xiao Yu's principal spear; used with Heavenly Flames and Cloud Crane Shadow. 8 132
• Void-Breaking Blade — Black crescent-shaped weapon inscribed with enhancement formations. 101
• Shadowless Mask — Conceals his origins and changes his appearance; essential to his Black Skeleton Tomb infiltration. 47 90
• Purple Cloud Wings — Flying combat technique conquered with soul power under Yun Zhi's guidance. 26
• Green Lotus Core Flame Map — System-provided map later sent to Xiao Yan through Han Jue's men. 64
• Medicine Elder's storage ring — Contains alchemical cauldrons, ingredients, and healing pills. 12

Relationships

• Xiao Yan — Junior brother, closest ally, and the person Xiao Yu is compelled to support through his system's final mission. Xiao Yu defended him during the repudiation, delivered the Green Lotus Core Flame map to him, and arranged protection for Xiao Zhan. 5 64 110
• Medicine Elder — Master. Xiao Yu regards him as family, gained alchemical experience through his soul tempering, and actively seeks to prevent the Soul Hall tragedy he knows may await him. 11 13
• Little Medical Fairy (Xiao Yi Xian) — Trusted companion. Xiao Yu saved her from the Rock Serpent, explored the hidden cave with her, and helped her escape the Wolf Head Mercenary Group. 14 17 18
• Yun Yun / Yun Zhi — Ally and romantic interest. Xiao Yu aided her pursuit of the Amethyst Spirit Crystal and later openly admitted that he liked her Yun Zhi identity. 29 78
• Han Jue — Subordinate bound by the Soul Imprint Technique. Han Jue leads the Iron Cavalry Mercenary Group and acts on Xiao Yu's orders to protect the Xiao Clan. 58 93
• Medusa / Sha Sha — Powerful, uneasy ally. Xiao Yu supplied her with Companion Amethyst Source, while Medusa later protected him at Jia Nan Academy. 83 96
• Xun'er — Fellow Xiao Clan member and Xiao Yan's beloved. Her recorded favorability toward Xiao Yu is “slight favorability,” while he treats her as part of his inner circle. 20 110
• Yue Yao — Academy acquaintance linked to the system mission “Moon's Sorrow.” She assisted Xiao Yu during the selection tournament and later entrusted him with her Fire Energy. 116 129
• Eagle Protector — Soul Hall figure who captured Xiao Yu, sought the secrets of his soul and flames, and placed a mark in his mind. 88 110

Story Role / Major Arcs

Xiao Clan and Medicine Elder Arc

• Encourages the discouraged Xiao Yan after his third-stage Dou Power test. 1
• Speaks against accepting Nalan Yanran's Qi-Gathering Powder and publicly supports Xiao Yan. 5
• Becomes Medicine Elder's disciple alongside Xiao Yan. 5

Green Mountain Town Arc

• Leaves Wutan City to seek independent growth and prevent future tragedies involving Medicine Elder and Xiao Yan. 11
• Absorbs the incomplete Bone Chilling Flame and enters Green Mountain Town. 13
• Saves Little Medical Fairy, explores the hidden cave, and escapes the Wolf Head Mercenary Group with her. 14 17

Magic Beast Mountain Range Arc

• Is hunted by the Wolf Head Mercenary Group after targeting Hao Meng. 18 20
• Meets Yun Yun in disguise, assists her against the Purple Crystal Winged Lion King, and earns Cloud Crane Shadow. 20 29
• Begins acting more independently from Xiao Yan while still arranging opportunities for him from afar. 47 64

Desert City Arc

• Uses the Soul Imprint Technique to take control of Han Jue. 55 58
• Unifies Desert City's mercenary groups and gains wealth, manpower, and a trusted agent for future plans. 55 62

Soul Hall and Black-Corner Region Arc

• Is captured by Eagle Protector, who covets his soul power and mysterious flames. 88
• Infiltrates the Black Skeleton Tomb under the Shadowless Mask and uses Protector Ying's absence to escape. 90
• Warns Xiao Yan and Medicine Elder that Xiao Zhan's disappearance may be connected to the Soul Hall. 110

Jia Nan Academy Arc

• Enters Jia Nan Academy as an eighteen-year-old five-star Da Dou Shi. 96 98
• Defeats Bai Shan and becomes widely known among the Outer Academy students. 105 106
• Leads the freshmen against the Black and White Fiend Teams during the Fire Energy Hunting Competition. 132 133
• Advances to Dou Ling, establishes the Mo Shang identity, and supports the formation of Pan's Gate under Xiao Yan's leadership. 136 139

Notable Quotes

“If our clan's glory must be bought with the dignity of its disciples, then in my opinion, even if a Dou King or Dou Emperor emerged from our clan, this family would never last long.” 5

“Thirty years east of the river, thirty years west of the river—never belittle a young man because he is poor.” 5

Trivia

• Xiao Yu nicknames his system “Century Egg.” 29
• He initially views himself as a supporting character rather than a protagonist, despite possessing a powerful system. 1
• His system records Xiao Yan's favorability at 85 and Medicine Elder's at 83, both categorized as trust or reliance. 20 29
• He deliberately refuses Pan's Gate leadership because he considers managing a faction troublesome and believes Xiao Yan should occupy the central role. 139