Feng Xu

Biodata

Feature	Value
Name	Feng Xu (封虚)
Alias(es)	Sect Master
Gender	Male
Affiliation	Ethereal Ascension Sect
Occupation/Role	Founder and Sect Master of the Ethereal Ascension Sect; cultivator and teacher
Status	Alive
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Immortal Emperor	2	Reached the highest cultivation realm in only a few thousand years in his original world. Two veteran Immortal Emperors ambushed him, destroying his sect and World Domain; Feng Xu fought back until the Cultivation World was devastated. 2
Severely injured; barely Human Immortal-level power	3	After arriving in the new universe, his injuries had reduced his usable strength to roughly the Human Immortal level, though he retained an Immortal Emperor’s physique and realm. 3
Spatial Law comprehension	6	Developed an application of Spatial Law capable of flattening Mordo and Kaecilius into a two-dimensional space within a cauldron. 6
Peak Golden Immortal Realm	12	Recovered to the peak of the Golden Immortal Realm after more than a year, while also comprehending several Time Laws and a Spatial Law through the Time Stone. 12

Background / History

Feng Xu originated from a cultivation world, where his sect concealed him for thousands of years because of his extraordinary talent. He eventually forced his way into the Immortal Emperor realm, intending to raise his sect into a third Immortal Emperor faction. His rapid advancement drew the hostility of two veteran Immortal Emperors, who jointly ambushed him. Their attack destroyed his sect and World Domain, shattered his Dao heart, and contributed to the destruction of the Cultivation World during Feng Xu's desperate counterattack. 2

The two enemies' self-destruction sent Feng Xu into a different world rather than killing him. He arrived gravely injured but alive, with his Immortal Emperor physique still sustaining him despite Earth's scarce spiritual energy. 2 6

In Siberia, Feng Xu encountered the injured young Natasha Romanoff. After accidentally harming her with an unstable leak of aura, he immediately restored her body and healed her injuries. Moved by her loyalty toward Yelena, he accepted her as his first disciple and vowed to restore his sect's legacy in this new world. 2

After surveying Earth and part of its surrounding cosmic structure with divine sense, Feng Xu sought out the planet's strongest expert: the Ancient One. He entered Kamar-Taj, defeated its defenders without killing them, and took control of the institution. He renamed it the Ethereal Ascension Sect, the name of his destroyed former sect, and began teaching its sorcerers immortal cultivation instead of magic. 3 5 6

Personality

Feng Xu is blunt, proud, and deeply confident in his own cultivation. He regularly dismisses conventional magic as borrowed or stolen power, and he has little patience for people who challenge him without understanding the difference in strength between them. 5 6 7

Despite his arrogance, he is protective of his disciples and willing to share powerful cultivation methods freely. He healed Natasha, crafted her an artifact, gave Kamar-Taj access to cultivation manuals, and personally instructed both Natasha and Clea. His discipline is strict: Natasha is repeatedly punished for leaving the sect without permission, but Feng Xu still recognizes her achievements and encourages her advancement. 2 3 8 22 33 45

His past loss remains central to his actions. The destruction of his original sect and world motivates his determination to rebuild the Ethereal Ascension Sect and preserve the cultivation heritage of his former world. 2 6

Abilities & Skills

Immortal Emperor Foundation

Feng Xu retains the body, realm, and cultivation knowledge of an Immortal Emperor even while injured.

• Could create or destroy worlds and alter worldly laws at his peak. 3
• Described himself as capable of restoring or recreating a destroyed universe after recovering his strength. 3 11
• Possesses a self-sustaining Immortal Emperor physique with interconnected qi acupoints and qi seas, allowing him to survive in an environment with very little spiritual energy. 6
• His uncontrolled aura can physically crush nearby beings; he later learns to contain it around Natasha. 2 3

Divine Sense

Feng Xu can use divine sense to investigate people, worlds, and cosmic structures.

• Examined Natasha's innate constitution and previously viewed her Red Room experiences through soul-searching. 2
• Surveyed Earth, identified the Ancient One as its strongest local expert, and extended his awareness into the universe. 3
• Detected the Watcher spying on him and retaliated with an aura backlash severe enough to injure the observer. 3
• Can conceal his heavenly secrets with spiritual power after detecting surveillance. 3

Healing and Restoration

Feng Xu can restore devastating bodily damage with spiritual energy.

• Healed Natasha after his leaked aura left her limbs broken and her body near death. 2
• Restored body parts removed through Red Room modification. 2

Spatial Law

Feng Xu's Spatial Law allows him to manipulate space and physical dimensions.

• Moved himself, Natasha, and Kamar-Taj's attackers to the summit while leaving the attackers without footing. 5
• Restructured the surrounding space and terrain on a large scale, separating buildings and people over an apparent abyss before restoring them safely. 5
• Flattened Mordo and Kaecilius into a two-dimensional planar space inside a cauldron. 6
• Can travel vast distances without portals by taking a single step. 2 8

Time Law

Feng Xu used the Time Stone to recover and broaden his understanding of temporal principles.

• Recognized the Time Stone and absorbed or studied its energy despite warnings that organic lifeforms could not touch it. 11
• Comprehended several Time Laws through the stone during his recovery. 12
• Claims that at his peak his own timeline had converged, making past and future part of the present. 11

Artifact Refinement

Feng Xu can refine mundane materials into cultivation artifacts.

• Refined a canyon stone into Natasha's jade pendant, an ordinary immortal artifact that grants warmth and enhanced physical strength. 3
• Created jade slips that store cultivation techniques for mental access. 7 8
• Inscribed Spatial Law into Uru supplied by Asgard, enabling Artifact Refining Peak to create storage equipment such as Clea's Spatial Bracelet. 45

Cultivation Teaching

Feng Xu is the source of the Ethereal Ascension Sect's cultivation system and its foundational teachings.

• Founded the Ethereal Ascension Sect at Kamar-Taj and established its hierarchy, ranks, and prohibition against murdering fellow disciples. 6 8 11
• Distributed the Longevity Formula, a foundational method compatible with other arts and capable of supporting cultivation up to the Immortal Emperor Stage. 8 9
• Explained the path from Tenfold Body Tempering through Qi Refinement and the immortal realms. 9
• Established that cultivation power truly belongs to the cultivator, unlike magic that can be reclaimed by its lender. 48
• Personally created and taught Natasha the Ninety-Nine Heavens Spirit-Calling Art. 11 12

Equipment / Items

• Jade slips — Refined storage mediums containing cultivation techniques and manuals. 7 8
• Spirit Stones — Condensed spiritual-energy resources used for cultivation and formations; Feng Xu can create only limited amounts while recovering from his injuries. 10 11
• Time Stone — Studied by Feng Xu to accelerate his recovery and comprehend temporal laws; later used as the core of Kamar-Taj's spiritual-energy array. 11 12
• Uru storage equipment — Feng Xu inscribed Spatial Law into Asgardian Uru for Artifact Refining Peak to forge into storage bracelets and related items. 45

Relationships

• Natasha Romanoff — First disciple. Feng Xu healed her, accepted her after learning of her loyalty to Yelena, and personally taught her the Ninety-Nine Heavens Spirit-Calling Art. 2 11 12
• Ancient One / Yao — Former Sorcerer Supreme of Kamar-Taj and Feng Xu's deputy sect master. Feng Xu defeated her, took over Kamar-Taj, and later developed a more casual rapport with her. 5 6 11 12
• Clea — Disciple accepted after completing a trial related to the Dark Dimension disaster. Feng Xu awakened her Falt Flame ability and gave her a Spatial Bracelet. 33 45
• Mordo — Sect disciple and former student of the Ancient One. Feng Xu subdued him alongside Kaecilius after they attacked Natasha. 5 6
• Kaecilius — Sect disciple and former student of the Ancient One. Feng Xu imprisoned him in a two-dimensional cauldron space after he attacked Natasha. 5 6
• Wong — Initially confronted Feng Xu when he entered the Kamar-Taj portal hidden in a Kathmandu supermarket; later serves as head of the sect's Enforcement Hall. 4 33
• The Watcher — Spied on Feng Xu shortly after his arrival and was injured by the backlash of Feng Xu's response. 3

Story Role / Major Arcs

Arrival and Natasha's Recruitment

After being displaced from the destroyed Cultivation World, Feng Xu arrives in Siberia, heals Natasha Romanoff, and accepts her as his disciple. He gives her an immortal artifact after she endures a freezing night in an icy canyon. 2 3

Taking Kamar-Taj

Feng Xu seeks Earth's strongest expert, enters Kamar-Taj through its concealed portal, captures the Ancient One's astral form, and overwhelms the defending sorcerers. He then declares Kamar-Taj the new site of the Ethereal Ascension Sect. 4 5 6

Establishing the Ethereal Ascension Sect

Feng Xu reorganizes Kamar-Taj, stocks its library with cultivation manuals, gives the first public cultivation lecture, and distributes the Longevity Formula. He establishes sect ranks, rules, resources, and a cultivation-based alternative to sorcery. 7 8 9 11

Recovery and Growth

Using the Time Stone, Feng Xu regains power up to the peak Golden Immortal Realm and comprehends Time and Spatial Laws. During this period, the sect develops spiritual-energy formations, expands its territory, and transitions from a school of sorcery into a cultivation sect. 11 12 23

Sect Master and Mentor

Feng Xu oversees the discipline and advancement of Natasha, Mordo, Kaecilius, and Clea. He punishes unauthorized actions, sets trials for prospective disciples, and rewards genuine progress, including Clea's awakening and acceptance as his disciple. 22 33 45

Notable Quotes

“Master, I will surely restore the glory of our sect in this world and pass down the cultivation heritage of the Cultivation World. Go in peace.” 2

“I intend to establish a sect here and teach you the cultivation methods of seeking the Dao and immortality.” 6

“From today onward, I will be your Sect Master, and you will be disciples of my Ethereal Ascension Sect.” 8

“The greatest taboo in cultivation is aiming too high. Taking things one step at a time with your feet firmly on the ground is the foundation.” 9