Cao Feiyu

Biodata

Feature	Details
Name	Cao Feiyu (曹菲羽)
Alias(es)	Senior Sister Cao; Junior Sister Cao
Gender	Female
Affiliation	Dan Chen Sect; Emerald Screen Peak 2043 2056
Occupation/Role	Emerald Screen Peak direct disciple; sword cultivator; Chen Fei's senior sister and later Dao Companion 2056 2181
Status	Alive 2246
First Appearance	2041

Power Progression

Stage / Realm / Level	Chapter	Notes
Great Cang Realm Mid-stage Peak	2111	Served as the team's principal combatant in the Ancient Heavenly Court Ruins, using her swordsmanship to kill Vengeful Demons exposed by Chen Fei.
Great Cang Realm Late Stage	2164	Returned from the ruins alongside Chen Fei after both advanced; her sword intent was noted to exceed that of ordinary newly advanced late-stage cultivators.
Great Cang Realm Peak	2190	Refined a Status Spiritual Material, producing an ice-blue sword phantom and a stable peak-realm aura.
Profound Dome Heavenly Lord Realm	2238	Broke through after refining Status Spiritual Materials alongside Chen Fei.

Background

Cao Feiyu cultivated in the Dan Chen Sect from childhood and developed an extensive knowledge of its inheritances and internal structure. She is associated with Emerald Screen Peak, where she acts as a senior figure among the disciples. 2061 2056

She was the Dao Companion of Chu Xuanyu, the former holder of the Xuan Yu Realm. When Chen Fei refined Chu Xuanyu's plane, its resonance with Cao Feiyu drew her and Wei Zhongqian to Tianhai City to find him. Seeing Chen Fei awakened grief, hope, and a desire to find lingering traces of Chu Xuanyu. 2041

Cao Feiyu advocated bringing the surviving cultivators of the Xuan Yu Realm into the Dan Chen Sect. She later privately explained that the sect's interest in Chen Fei extended beyond Chu Xuanyu's legacy: the Xuan Yu Realm's Plane Origin and a Great Cang Realm cultivator were both needed for an undisclosed task. 2042 2043

Appearance

Cao Feiyu is tall and graceful, with a cool, elegant bearing that softens noticeably around those she trusts. She dresses differently for formal, daily, and combat settings. 2043 2173

• Clear, autumn-water-like eyes; her expression is often calm, melancholic, or sharply focused in battle. 2045 2107
• Frequently wears water-blue or light-cyan flowing robes in the sect. 2043 2081
• Wears fitted dark xuan martial attire during duels, giving her an austere, swordlike presence. 2173 2178
• Wields the Autumn Water Long Sword, later nourishing an ice-blue divine weapon within her lifebound plane. 2108 2246

Personality

Cao Feiyu is composed, observant, and deeply protective of those she recognizes as her responsibility. She publicly defended Chen Fei when others questioned his worth, and she explicitly remained behind during the Kunyuan expedition to protect him as a disciple of Emerald Screen Peak. 2045 2056

Chu Xuanyu's death remains a profound wound. Vengeful Demon illusions that showed Chen Fei dying reopened that trauma, leaving her temporarily unable to trust what she saw; nevertheless, she recovered her resolve and returned to battle. 2107

Though initially concerned about Chen Fei's risky cultivation choices, she ultimately respects independent judgment. After witnessing his unconventional talents with formations and other arts, she stopped trying to redirect his path and chose to support it. 2063 2109

Her decisiveness extends to battle and rewards. She insists on fair divisions of Vengeful Demon Origins, recognizes Chen Fei's contributions, and repeatedly places herself between him and stronger enemies. 2111 2113 2117

Abilities & Skills

Heavenly Descent Sword Art

Cao Feiyu's principal sword art emphasizes overwhelming momentum, concentrated sword intent, and lethal sword formations. At the ninth level, her sword intent can take form and pursue targets like a shadow. 2108 2173

• Forms the Heavenly Descent Sword Formation, surrounding targets with thousands of sword energies and sealing their avenues of escape. 2108 2109
• Can use the art's Against Heaven move to exploit openings against stronger opponents, as in her victory over Yue Qing. 2204
• Defeated Yan Jin and Ma Chi with single decisive sword strikes during the Dan Chen Sect competition. 2179 2175
• Its high-output techniques consume substantial Origin Energy, leaving her fatigued after prolonged formations or all-out attacks. 2109 2146

Indestructible Spirit Light

Cao Feiyu employs the Indestructible Spirit Light technique to discern concealed truths and counter illusion-based opponents. 2198

• Saw through Lie Fen's fire-and-illusion tactics to locate his true body and secure victory. 2198 2199
• Combined it with the Truth-Shattering Sword to overcome the Red Sun Sect cultivator. 2199

Water Element Incarnation

Cao Feiyu can create a nimble Water Element Incarnation with roughly thirty percent of her main body's strength. 2153

• Used the incarnation to test the dangerous space surrounding a glazed-white jade platform. 2153

Sword Combat

Her battle style combines precise timing, relentless pressure, and exceptional control over Sword Intent. She is capable of identifying brief weaknesses and turning them into killing opportunities. 2113 2114

• Maintained control across fifteen consecutive Vengeful Demon hunts while Chen Fei identified targets and broke illusions. 2111
• Fought Ke Muqing even after its power temporarily surged to the Great Cang Realm Late Stage. 2113 2115
• Her sword intent was considered capable of drawing with the combined strength of Ji Siqi and Ouyang Rui. 2177

Equipment

• Autumn Water Long Sword — Her primary weapon during the Ancient Heavenly Court Ruins; used to channel the Heavenly Descent Sword Art. 2108
• Jade pendant — Resonates with Chen Fei's Xuan Yu Realm and helped confirm his identity after their separation in the ruins. 2145
• Ice-blue divine weapon — A later sword nourished inside her lifebound plane with Sword Intent. 2246

Relationships

• Chen Fei — Initially regarded as the inheritor of her late Dao Companion's Xuan Yu Realm. She became his guide and protector in the Dan Chen Sect; their mutual trust deepened through the Ancient Heavenly Court Ruins, and they later became Dao Companions. 2041 2063 2181
• Chu Xuanyu — Her fallen Dao Companion and the former owner of the Xuan Yu Realm. Her unresolved grief over his death strongly shapes her response to Chen Fei and to the ruins' illusions. 2041 2107
• Wei Zhongqian — Fellow Dan Chen Sect cultivator and Chu Xuanyu's respected senior brother. He traveled with Cao Feiyu to locate Chen Fei and helps oversee Emerald Screen Peak affairs. 2041 2061
• Venerable Tianxuan and the Xuan Yu Realm cultivators — Cao Feiyu helped arrange their resettlement in the Dan Chen Sect because of their connection to Chu Xuanyu's plane. 2042

Story Role / Major Arcs

Finding the Xuan Yu Realm's Inheritor

Cao Feiyu and Wei Zhongqian traced the Xuan Yu Realm to Tianhai City and found Chen Fei. Her emotional reaction revealed the importance of Chu Xuanyu's legacy, while her advocacy brought Chen Fei and the surviving Xuan Yu Realm cultivators into the Dan Chen Sect. 2041 2042

Guidance at Dan Chen Sect

She introduced Chen Fei to the sect's hierarchy, explained the value and scarcity of True Disciple positions, and guided him through the Scripture Depository. Though worried by his decision to cultivate three demanding inheritances simultaneously, she ultimately supported his choice. 2043 2063

Ancient Heavenly Court Ruins

Cao Feiyu partnered with Chen Fei during the Kunyuan expedition. Chen Fei's illusion-breaking and formations complemented her swordsmanship, allowing them to kill Vengeful Demons efficiently and divide their gains fairly. 2107 2111

During the expedition, she overcame mental assaults, pursued and killed Rong Xiuyuan, and fought Ke Muqing despite its temporary late-stage power. Her willingness to sacrifice herself for Chen Fei, and his refusal to abandon her, transformed their professional partnership into a deeper bond. 2108 2113 2117

Sect and Myriad Sect Competitions

After advancing to the Great Cang Realm Late Stage, Cao Feiyu swept through the Dan Chen Sect's internal competition with the ninth level of the Heavenly Descent Sword Art. She later refined a Status Spiritual Material to reach the Great Cang Realm Peak. 2173 2190

In the Myriad Sect Grand Competition, she defeated opponents including a Green Wave Sword Sect cultivator, Lie Fen, Yue Qing, and Ghost Shadow. Chen Fei's support and their public recognition as Dao Companions became increasingly visible throughout the event. 2197 2198 2204 2209

Heavenly Lord Advancement

Following Chen Fei's championship victory, Cao Feiyu refined her Status Spiritual Material and entered the Profound Dome Heavenly Lord Realm. She later selected the Nine Heavens Profound Frost Sword Art as an inheritance compatible with her Heavenly Descent Sword Art. 2238 2239