Clear Sky Sect

Biodata

Feature	Details
Name	Clear Sky Sect (昊天宗)
Alias(es)	Former Number One Sect Under Heaven; world's number one tool martial soul sect
Affiliation	Historically affiliated with Spirit Hall during its early expansion; based in the Endless Fire Domain during Tang Potian's era 17 92
Occupation/Role	Hammer-martial-soul sect; cultivates combat arts and develops soul tools
Status	Active; presently sealed away 1
First Appearance	Chapter 1 (mentioned during the Heavenly Dao Golden Ranking announcement) 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Founding	47	Tang Potian establishes the sect by Lin Xuan's command, naming it after the Clear Sky Hammer.
Rapid expansion	48	Tang Potian opens the Clear Sky Nine Absolutes to all hammer-martial-soul users and teaches simplified soul-tool forging, attracting thousands of followers.
Number one sect within the Heaven Dou Empire	48	Ten years after its founding, the sect has 300,000 disciples and five Soul Douluo-level experts; its overall strength surpasses Spirit Hall.
Eighth place on the Continental Faction Rankings	27	In the present era, the Heavenly Dao Golden Ranking places the sect eighth among the continent's factions.

Background / History

Tang Potian founded the Clear Sky Sect twenty thousand years ago. Contrary to later assumptions about the sect's bloodline, he awakened a Black Iron Hammer with only level-four innate soul power; the Clear Sky Hammer did not yet exist 28.

After enduring crippling injuries and years as a secluded blacksmith, Tang Potian comprehended the prototype of the Chaotic Wind Hammer Technique through repeated forging. He also created the Storage Cube, an early soul tool capable of storing and retrieving items 30.

Tang Potian later became Lin Xuan's servant and trained in the Endless Fire Domain. A Martial Soul Evolution Pill transformed his Black Iron Hammer into the Clear Sky Hammer, while Lin Xuan gave him the cultivation framework later known as the Clear Sky Ten Absolutes 38 42 43.

Following his training and soul-tool research alongside Poseidon, Tang Potian formally established the Clear Sky Sect. Its founding policy accepted anyone with a hammer-type martial soul and allowed them to learn the Clear Sky Nine Absolutes regardless of origin or social status 47 48.

The sect combined cultivation with industrial-scale soul-tool forging. Within ten years, it became a steel city spanning hundreds of miles, with more than one million inhabitants and 300,000 disciples; its walls mounted soul cannons, and it surpassed Spirit Hall in overall strength within the Heaven Dou Empire 48.

At some point after a later beast-tide conflict, Tang Potian engraved the principles of Nine Rings Detonation in the sect's forbidden grounds before departing for the Endless Fire Domain. Ten thousand years later, Tang Chen spent a century studying the inscription and passed down fragments of the sect's famed techniques 60.

Organization and Culture

• The sect was originally built around hammer-type martial souls, rather than a restricted hereditary bloodline 48.
• Tang Potian's first ironclad rule permitted any hammer-martial-soul user to cultivate the Clear Sky Nine Absolutes 48.
• Disciples cultivated combat techniques, absorbed Strange Fire to strengthen themselves, and forged soul tools in dedicated workshops 48.
• The present sect retains a more restrictive attitude toward its secret arts, initially reacting with outrage when Tang Potian's open teaching policy was revealed 48.
• It is known for dominance and formidable offensive power; historical accounts describe offending the sect as inviting relentless retaliation 10.

Martial Soul

Clear Sky Hammer

The Clear Sky Hammer is the sect's defining martial soul and is regarded as the world's number one tool martial soul. It originated when Lin Xuan evolved Tang Potian's Black Iron Hammer with a Martial Soul Evolution Pill 42.

• Possesses overwhelming raw force and broad-area destructive power.
• Is extremely heavy and difficult to wield without a specialized body-tempering method 43.
• Has poor soul-power transmission efficiency and limited versatility in its unrefined state 42 45.
• Its true potential relies on the Clear Sky Absolutes and related force-application techniques 42 43.
• Tang Potian's evolved hammer is dark gold, larger than his original Black Iron Hammer, and engraved with ancient patterns 42.

Abilities & Skills

Clear Sky Nine Absolutes

The Clear Sky Nine Absolutes are the sect's central hammer arts. Tang Potian learned them under Lin Xuan and later made them available to all eligible hammer-martial-soul users 43 48.

• Includes Void, Sealing, Piercing, Penetration, Entangling, Tremor, Shattering, Instant, and Collapse character arts 43.
• Uses refined force application and energy pathways to overcome the Clear Sky Hammer's cumbersome nature 43.
• Tang Potian mastered the nine arts during two years of cultivation in the Endless Fire Domain 44.
• Tang Chen later acknowledged that his own understanding of the techniques was inferior to Lin Xuan's demonstration 43.

Clear Sky Tenth Absolute: Divine Character Art

The Divine Character Art is the tenth principle of Lin Xuan's Clear Sky Ten Absolutes.

• Draws upon the power of the Douluo Plane to produce a strike comparable to divine power 43.
• Lin Xuan's demonstration split open a rift stretching tens of thousands of miles across the Endless Fire Domain 43 44.
• It exceeds the nine arts Tang Chen developed over his lifetime 43.
• Tang Potian is documented mastering the first nine absolutes; no successful mastery of the tenth by him is shown 44.

Chaotic Wind Hammer Technique

Tang Potian developed the prototype of this forging and hammering technique while spending ten years working as a one-eyed blacksmith 30.

• Originated through repeated physical forging rather than inherited instruction.
• Became a foundational symbol of Tang Potian's perseverance after his injuries 30.
• Its creation demonstrated that the sect's martial tradition was forged from practical labor and combat experience.

Ring Detonation

Ring Detonation is associated with the Clear Sky Sect's most feared inheritance, though its original concept came from Lin Xuan's alchemical insight rather than Tang Chen 54 55.

• Converts the instantaneous release of energy into an attack beyond the user's normal limits 54.
• Lin Xuan demonstrated its destructive potential with a hundred-thousand-year soul ring, devastating half of the Endless Fire Domain 55.
• Detonating all nine rings was stated to be capable of killing gods 56.
• Tang Potian failed to reproduce Lin Xuan's energy flow despite his training and talent 56.
• Tang Potian preserved the principles on a stone stele in the sect's sacred grounds for future generations 56.
• Tang Chen spent one hundred years studying the later inscription in the forbidden grounds 60.

Soul-Tool Forging

The sect became a major center of soul-tool development under Tang Potian.

• Tang Potian created the Storage Cube, which stores and retrieves physical items through soul power 30.
• Tang Potian and Poseidon later developed a prototype of the Vast Sea Cosmic Shroud, an artifact assessed as beyond a twelfth-grade soul tool in potential 47 48.
• The sect established forging workshops and taught simplified soul-tool manufacturing to its disciples 48.
• Its industrial infrastructure included soul-cannon-equipped city walls 48.

Notable Members

• Tang Potian — Founding sect master; former Black Iron Hammer user whose martial soul evolved into the Clear Sky Hammer. Founder of the sect's inclusive hammer-art tradition and a pioneer of soul-tool forging 28 42 47 48.
• Tang Chen — Peerless Douluo and later inheritor of Tang Potian's legacy. He derived later versions of the Great Sumeru Hammer, Ring Detonation, and Clear Sky Nine Absolutes from the patriarch's stone-chamber inheritance 27 60.
• Tang Xiao — Present sect master during the Heavenly Dao Golden Ranking. He initially rejects Tang Potian's open transmission of secret arts but ultimately celebrates the founder's success 17 48.
• Tang Hao — Current inheritor of the Clear Sky Sect. His relationship with a soul beast is contrasted unfavorably with Tang Potian's uncompromising hostility toward soul beasts 32.
• Lin Xuan — Tang Potian's master; evolved the Black Iron Hammer, taught the Clear Sky Ten Absolutes, and guided the sect's early soul-tool development 38 42 43 47.

Relationships

• Lin Xuan — Tang Potian's master and the source of the sect's evolved martial soul, advanced cultivation arts, and soul-tool knowledge 38 42 43 47.
• Spirit Hall — Historical ally ten thousand years ago; the Clear Sky Sect later became an affiliated force of Spirit Hall during its early expansion 17 92.
• Qian Yuhan — Historically fought alongside Tang Potian despite the later enmity between Spirit Hall and the Clear Sky Sect 17 45.
• Poseidon — Tang Potian's collaborator in soul-tool research and development 47.
• Three-Eyed Golden Lion — Tang Potian refused its healing herb and rejected the possibility of friendship between humans and soul beasts 32.
• Tang Chen — A later descendant and inheritor who studied Tang Potian's preserved techniques for a century 27 60.

Story Role / Major Arcs

Heavenly Dao Ranking

The Clear Sky Sect is revealed as the eighth-ranked faction on the Douluo Continent, surprising observers who expected the former Number One Sect Under Heaven to rank higher 27.

Tang Potian's Revelation

The Heavenly Curtain exposes the sect's true origin: its founder was not an innate genius, its signature martial soul was artificially evolved, and much of its later prestige arose from Lin Xuan's guidance 28 42 43.

Rise of the Ancient Clear Sky Sect

Tang Potian's inclusive recruitment and soul-tool industrialization transform the sect into the strongest faction within the Heaven Dou Empire only ten years after its establishment 48.

Inheritance of Ring Detonation

Tang Potian leaves the principles of Ring Detonation within the sect's forbidden grounds. Tang Chen later studies the legacy for a century, shaping the secret arts inherited by subsequent generations 56 60.

Notable Quotes

“Anyone who enters my sect, regardless of origin or status! As long as the martial soul in your hand is a hammer, you may cultivate the supreme art of the Clear Sky Sect—the Clear Sky Nine Absolutes!”
— Tang Potian 48

“The hammer is too heavy, the handle is too long, and soul power transmission efficiency is poor.”
— Lin Xuan's assessment of the Clear Sky Hammer 42

“Behind us stand millions of our loved ones! The foundation of our sect!”
— Tang Potian 49

Trivia

• The Clear Sky Sect's original martial soul was the Black Iron Hammer, not the Clear Sky Hammer 28 42.
• Tang Potian had only level-four innate soul power, below the standard later expected from Clear Sky Sect direct descendants 28.
• The sect's later secret arts were not originally created by Tang Chen; he described them as fragments gleaned from Tang Potian's legacy 27.
• Tang Potian's earliest known soul tool, the Storage Cube, was created in a dilapidated blacksmith's shop 30.