Yu Sui

Biodata

Feature	Information
Name	Yu Sui (虞岁)
Alias(es)	Nangong Sui; County Princess Nangong; Young Princess Qingyang; “Little Fish”
Gender	Female
Affiliation	Taiyi Academy; Ghost Dao School; Yin-Yang School
Occupation/Role	County Princess of Qingyang; disciple of Sage Chang Gen; cultivator of the Nine Schools Techniques
Status	Alive
First Appearance	7

Power Progression

Stage / Realm / Level	Chapter	Notes
Normal Practitioner	7 15	Publicly regarded as untalented, dull-witted, and possessing only ten-percent talent compatibility. Her inability to cultivate stemmed from the Primordial Soil absorbing the Five Elements Qi of her Light Cores.
First Realm	24	Successfully cultivated a primitive, fleeting Five Elements Light Core after Sage Chang Gen sealed the Primordial Soil’s power lineage.
Eighth Realm Five Elements Light Core	296	Advanced from the First Realm to the Eighth Realm; Zou Qian notes that she rose two realms in a single night.
Soul Light Core	376	Shattered and upgraded her Five Elements Light Core into a Soul Light Core, nearly dying in the process and triggering empathy in other World Destroyers.

Background / History

For over a decade, Yu Sui was known as a mediocre Qingyang County Princess and a Normal Practitioner. Her apparent lack of talent made others dismiss her as slow, timid, and incapable; her talent compatibility was measured at only ten percent. She deliberately maintained this harmless image while studying at the Imperial Academy, where she learned archery, horseback riding, and swordsmanship from her elder brothers. 7 8 15 99 126

Her inability to cultivate was caused by the half of the Primordial Soil inside her. The Primordial Soil competed with her for Five Elements Qi, preventing her from learning the Nine Schools Techniques. Because Nangong Ming could eventually return the Primordial Soil to Lady Su, Yu Sui considered gaining strength and knowledge before that happened essential to her survival. 23 110

At Taiyi Academy, Sage Chang Gen accepted her as a personal disciple of the Ghost Dao School. After Yu Sui sought his help, he revealed her Divine Mechanism, Heavenly Eye, and sealed the Primordial Soil’s power lineage with a Bagua diagram. This allowed her to cultivate her first Five Elements Light Core and begin formally learning Nine Schools Techniques. 18 23 24

Yu Sui later became involved in conflicts surrounding the Futuo Tower Fragments, Xuan Kui, Lan Poison, and the World Destroyers. She concealed much of her strength, cultivated techniques from multiple schools, and built alliances while investigating the forces connected to her family. 109 118 125 223

Personality

Yu Sui presents herself differently depending on her circumstances. To those who underestimate her, she appears gentle, obedient, timid, or naïve; this persona is rooted in the reputation she cultivated while unable to protect herself. Behind it, she is observant, calculating, and willing to manipulate opponents, conceal information, and use others’ assumptions against them. 44 180 306

She is intensely driven to cultivate. Having spent most of her life unable to use the Nine Schools Techniques, she finds security and satisfaction in learning new skills, repeatedly pushing herself through painful training, dangerous formations, and near-death situations. 42 70 217 296

Yu Sui is also protective of people she considers her own. She supports Li Jinshuang, asks Wan Qi to rescue Sheng Zui, rewards Black Beard’s loyalty, and seeks ways to protect Mei Liangyu even when doing so places her at risk. 22 109 318 377

Abilities & Skills

Divine Mechanism: Heavenly Eye

A top-ten Divine Mechanism that allows Yu Sui to perceive Five Elements Qi, runes, movements, and details hidden within her surroundings. It often activates instinctively under pressure. 23 53

• Perceives the flow of Five Elements Qi and rune structures within techniques and entities. 53
• Allowed her to identify and destroy the four Death Runes sustaining Li Jinshuang’s Sword Spirit. 53
• Helps her anticipate attacks and evade opponents during combat. 53
• Initially resonated most reliably with the Number Mountains and Communication Arrays; Yu Sui had to explore its wider applications herself. 27

Five Elements Light Cores

Yu Sui uses Five Elements Light Cores as the foundation of her cultivation and as tools for surveillance, combat, and technique materialization. 18 42 361

• Can place Light Cores covertly on people or objects. 18 211
• Her Control Soul-separated souls can independently generate Light Cores, expanding her options within Military Formations. 42
• Can use large quantities of Light Cores to materialize techniques, including Death Runes over a mountainside. 361
• Overuse exhausts her Qi and can leave her injured or unconscious. 42 214

Ghost Dao Techniques

As Sage Chang Gen’s disciple, Yu Sui studies Ghost Dao techniques including talismans, curses, soul techniques, and summoning. 20 109 125

• Wind Riding Technique — movement technique used for rapid repositioning and evasion. 20 53
• Bagua Life Technique — supports enhanced perception and the use of Bagua-based techniques. 48 53
• Control Soul — separated souls can independently generate Five Elements Light Cores. 42
• Death Rune — extracts or destroys the Five Elements Qi sustaining a materialized target. 53
• Soul Capture — used to control Tianhe Gang leader Qu Zhenghao during negotiations. 125
• Ghost Dao Summoning — summoned corrosive blood rain during her confrontation with Lady Su. 433

Yin-Yang School Techniques

Yu Sui possesses the Five Elements Generation constitution and the Nine Provinces Star Sea, making her unusually suited to Yin-Yang School cultivation. 190 217

• Reverse Star / Reverse Extreme — used to counter and defeat the Golden Long Snake and Tang Yuan. 425
• Black Tortoise Star Array — learned under Wu Huaiwei and Zou Qian’s guidance. 217
• Xustar Star General: Frost White Python — a manifestation from the Black Tortoise Star Array. 217
• Water Element Myriad Realms — attained through training with Zou Qian and the influence of Yin Qi. 296 352
• Her Nine Provinces Star Sea achieved the alignment of Three Thousand Stars within one hour. 198

Military School Swordsmanship and Sword Spirit

Yu Sui trained in swordsmanship from childhood and later studied Military School swordsmanship with Li Jinshuang. Her Sword Spirit emerged under lethal pressure. 99 142 194

• Her Sword Spirit initially manifested as a black skeletal entity, reflecting deeply hidden fierce and ruthless Qi. 194
• Mei Liangyu forced its emergence by using killing intent and driving Yu Sui into danger. 194
• Yu Sui later named the Sword Spirit Yanyan and used it to retrieve Futuo Tower Fragments from Gongsun Qi. 376
• She keeps the Sword Spirit concealed because its existence could draw dangerous suspicion. 165 238

Strange Fire and World Destroyer Traits

Yu Sui possesses Strange Fire and is one of the World Destroyers. Its power is dangerous, difficult to control, and tied to near-death states and death empathy. 32 117 202

• Triggering the Fire Spirit Orb through near-death can activate death empathy. 122 202
• Strange Fire can strengthen her Nine Schools Techniques. 430
• Its use has caused severe exhaustion, injury, insomnia, and near-death experiences. 32 48 202
• Yu Sui struggles to suppress her destructive impulses rather than eliminate them. 377

Equipment / Items

• Listening Wind Ruler — communication tool used for intelligence gathering, encrypted contact, and locating people. 22 391
• Di Su Tiancheng — received from Black Beard in a black box. 16
• Extreme Sea Cold Jade — helps her sleep after exhausting cultivation. 195
• Futuo Tower Fragments — sought for their Tianzi Text and their connection to the Non-War Covenant. 91 94
• Fire Spirit Orb — connected to the Strange Fire and death-empathy activation. 122 202

Relationships

• Sage Chang Gen — Ghost Dao master. He revealed Yu Sui’s Heavenly Eye, sealed the Primordial Soil’s power lineage, and teaches her Ghost Dao techniques. 23 38 109
• Mei Liangyu — senior martial brother, teacher, confidant, and eventual love interest. He trains Yu Sui, protects her secrets, and openly prioritizes her wishes. 66 118 190 231 415
• Li Jinshuang — roommate, swordsmanship teacher, and trusted ally. Yu Sui defended her from slander and helped suppress her Sword Spirit. 22 53 302
• Xue Mushi — ally and frequent combat partner. Their techniques complement each other, particularly against Li Jinshuang’s Sword Spirit and other threats. 53 317 318
• Wei Ren — initially an enemy who betrayed her; later an uneasy ally. Yu Sui crippled his cultivation to the First Realm, and he subsequently sought to regain her trust. 32 104
• Sheng Zui — elder brother who is protective of Yu Sui and hostile toward Gu Gan. 28 185 318
• Su Feng — second elder brother, with whom Yu Sui spent the most time in Qingyang; he taught her swordsmanship. 194
• Han Bing — eldest elder brother. He taught her horseback riding and was later revealed to have aided Qingkui’s Lan Poison operations. 8 223
• Gu Gan — childhood acquaintance and protector. Yu Sui considers their relationship one of mutual use rather than romance. 91 185
• Lady Su — mother and holder of the other half of the Primordial Soil. Their relationship is hostile and burdened by the Primordial Soil, past memories, and Lady Su’s attempts on Yu Sui’s life. 23 433
• Wu Huaiwei — Yin-Yang School dean and Yu Sui’s second master. She recognizes Yu Sui’s Five Elements Generation constitution and directs her Yin-Yang cultivation. 190 217 352
• Zou Qian — harsh Yin-Yang School instructor who teaches Yu Sui the Black Tortoise Star Array and Water Element techniques. 217 296
• Black Beard — Nangong family representative in Taiyi and a loyal intelligence source for Yu Sui. 18 109 125
• Gongsun Qi — fellow World Destroyer and Mei Liangyu’s relative. Their relationship is tense but pragmatic; he aids Yu Sui while remaining wary of her Nangong lineage. 376 377 391

Story Role / Major Arcs

Taiyi Academy Enrollment

Yu Sui arrives at Taiyi Academy after years as a Normal Practitioner, becomes Sage Chang Gen’s disciple, and begins cultivating after the Primordial Soil is sealed. 12 18 23 24

Military Formation Training

She repeatedly challenges Military Formations to improve her combat ability, develops her use of separated souls and Light Cores, and learns to apply Heavenly Eye under battle conditions. 42 53

Futuo Tower and Xuan Kui Investigation

Yu Sui pursues Futuo Tower Fragments while uncovering Xuan Kui’s involvement in Lan Poison operations, including the roles of academy disciples, Saints, and members of her own family. 109 118 125 223

Yin-Yang Cultivation on Moon Mountain

Under Wu Huaiwei and Zou Qian, Yu Sui develops the Nine Provinces Star Sea, learns the Black Tortoise Star Array, and begins mastering Yin-Yang School techniques alongside Ghost Dao cultivation. 190 217 296

World Destroyer Conflict

Yu Sui investigates the Strange Fire, communicates with other World Destroyers, survives repeated Fire Spirit Orb activations, and upgrades her Light Core into a Soul Light Core. 117 202 376

Qingyang Return

After returning to Qingyang, Yu Sui publicly declares affection for Mei Liangyu as part of a calculated effort to protect them both, then confronts Lady Su and reveals that she remembers her past. 415 433

Trivia

• Yu Sui enjoys reading, despite previously making others believe she did not. 126
• She admires beautiful calligraphy and was immediately drawn to Mei Liangyu’s handwriting. 30
• She once described herself to Xue Mushi as “pitiful, pretty, and weak,” then openly admitted she was complimenting herself. 91
• Yu Sui named her Sword Spirit “Yanyan.” 376