Fourth Sequence

Biodata

Nature and Position

• The Fourth Sequence is one of the Six Great Sequences through which the River of Time flows. The River originates in the First Sequence and ends in the Sixth Sequence. 346
• It embodies conditions described as chaotic, explosive, surging, and wild. 503
• The Fourth Sequence is one of the two central, most fiercely contested stages of the River of Time, alongside the Third Sequence. 445
• It contains twelve known subdivisions or dimensions, compared with the Fifth Sequence's three dimensions. 487
• The main current of the River of Time is tangible within the Fourth Sequence to beings with Demigod strength; its flow ultimately leads toward the Fifth Sequence. 429

Residency and Registration

• A complete True Soul grants the basic qualification to enter the Fourth Sequence, functioning as its lowest level of “household registration.” 471
• A True Spirit is a higher-grade registration:
  • One-Leaf True Spirit — unobscured.
  • Two-Leaf True Spirit — undying.
  • Three-Leaf True Spirit — immortal; regarded as a noble registration and the standard for becoming an important figure in the Fourth Sequence. 471
• A Three-Leaf True Spirit is recognized by both the Fourth Sequence's structural rules and the laws of the River of Time's main trunk. 499
• To reliably survive and develop there, a being generally needs at least a Three-Leaf True Spirit and Demigod-level strength. 525
• High True Soul purity improves comprehension of secret arts and forbidden techniques, but Fourth Sequence registration is only the beginning rather than a guarantee of power. 462

Environment and Dangers

• The Fourth Sequence is defined as much by advanced law manipulation as by raw strength; its understanding of laws is compared to that of doctoral supervisors versus the Fifth Sequence's elementary-school level. 500
• Competition centers on territory, resources, and registration in the River of Time. Without territory, forces cannot secure resources; without resources, they cannot maintain armies or develop. 522
• Mechanical Zombies are a pervasive threat. They are numerous enough that even powerful Heavenly Gods can struggle against them, and they obstruct travel between dimensions. 445 508
• The sequence contains numerous powerful beings, including Demigods, Heavenly Gods, Law Heavenly Gods, Ancient Gods, and entities older or more terrifying than Ancient Gods. 429
• Worlds and civilizations that cannot maintain their position may be dimensionally downgraded into the Fifth Sequence. 684

Access and Travel

• Travel from the Fourth Sequence down to the Fifth Sequence is comparatively easy, while returning from the Fifth to the Fourth is exceptionally difficult. 508
• Unauthorized passage back to the Fourth Sequence has a very low success rate, even with the Death Black Sail and Boat of Death. 508
• The barrier separating the Fifth and Fourth Sequences requires extraordinary means to cross; one known method is a “Slingshot” powered by 200,000 units of Cosmic Law. 496
• Apprentice Time Guardians receive a Stellar Imprint that grants the qualification to travel among the Third, Fourth, and Fifth Sequences, though qualification does not ensure safe or affordable passage. 487
• The Death Black Sail can transport up to ninety-nine people through sequence warping and reach unusual locations without a cost. 372

Known Inhabitants and Powers

• Thousand-Handed Race — a civilization skilled in Law Seals and Divine Seals whose mastery of laws greatly exceeds that of ordinary human cultivators. 500
• Heavenly God Chang Ji — a Five-Leaf to Six-Leaf True Spirit and regional overlord whose actions contributed to the destruction of the Azure Nether Realm and Heavenly Sword Clan. 500
• Time Guardians — enforcers who protect the normal flow of the River of Time and address crimes that disrupt it. 486 487
• Mechanical Zombies — a widespread hostile force capable of threatening travel, territory, and even Heavenly God-level entities. 445 522

Story Role

• The Fourth Sequence is initially revealed as the origin of three Transcendence-level intruders—two human cultivators and a Demon Race member—whose appearance exposes the danger hidden behind Zhang Yang's Apocalyptic Village Building Quest. 246
• Zhang Yang exploits compensatory rewards connected to the Fourth Sequence's secret, obtaining the Profound Grade Four Seasons Reincarnation Sword Art. 250
• Later revelations establish the Fourth Sequence as a primary battlefield of the River of Time, where civilizations struggle to avoid being pushed downstream into the Fifth Sequence. 346
• Zhang Yang's main body enters the Fourth Sequence but suffers repeated battles over Azure Nether Realm and River of Time registration, eventually dying while preserving a route for his sub-account's survival. 429
• After obtaining a Three-Leaf True Spirit and Apprentice Time Guardian status, Zhang Yang undertakes a more deliberate return to the Fourth Sequence, treating concealment, residency, and a defensible base as essential priorities. 471 492 499