Jeong-woo

Jeong-woo is Yeon-woo's younger identical twin, the founder of Arthia, and the high ranker known as Heaven Wing. He enters the Tower in search of a cure for their mother, leaves his dying memories in the Pocket Watch, and later returns first as a vestige and then as the sun of Day. His story ultimately reverses the twins' original roles: after Yeon-woo recovers him from the diary, Jeong-woo becomes Deus Ex Machina and works to preserve, find, and record his brother.

Biography

The Panacea and Arthia

Jeong-woo grows up as the physically weaker and more introverted of the Cha twins. Their chronically ill mother is the center of his home life, and an invitation to the Tower appears to offer what ordinary medicine cannot: the Panacea. He leaves without telling Yeon-woo because he is certain his protective elder brother would insist on taking his place. That secrecy establishes both his motive and his first consequential mistake. What he intends as a private sacrifice deprives his family of any choice in the matter and leaves Yeon-woo with no explanation for his disappearance. (Chapters 1–2)

Inside the Tower, his rare Perfect Adaptability, affinity for mana, and contact with the ancient dragon Kalatus let him rise with extraordinary speed. He helps form Arthia, becomes its leader, reaches the ninth individual rank under the title Heaven Wing, and drives the clan to fifth place. The urgency that brought him into the Tower also shapes his command. Because every delay threatens his mother, he repeatedly presses an exhausted clan to climb and fight. Arthia's success is real, but so is the strain hidden beneath it, and Jeong-woo later acknowledges that his conviction that the clan must follow his pace made its internal fractures easier to exploit. (Chapters 1–2, 180–185, and 363–375)

Those fractures become a coordinated betrayal. Jeong-woo is poisoned, hunted, and finally stabbed by Vieira Dune while Arthia collapses around him; even obtaining the elixir comes too late for him to carry it home. He entrusts his remaining knowledge and feelings to the Pocket Watch because Yeon-woo is the only person he still believes will receive them. The diary is therefore more than an account of murder. It is an apology, a succession, and a path assembled for the brother he excluded from the original decision. Jeong-woo dies believing he has failed his mother and clan, but determined that Yeon-woo will not enter the same struggle blind. (Chapters 1–2)

The Repeated Benefit and the Pocket Watch

The hidden record within the Pocket Watch reveals that Jeong-woo's final life was not the only version of his climb. Through the special benefit, he experiences variations in which alliances, discoveries, betrayals, and deaths arrive in different forms. Many routes still end with the same necessities: the elixir, the truth behind Arthia, and a record that can reach Yeon-woo. Instead of treating the repetitions as opportunities to save only himself, Jeong-woo turns them into trials of the route his brother may one day follow. Every hidden piece and warning he can preserve reduces a risk that Yeon-woo would otherwise have to discover through injury or death. (Chapters 355–361)

That preparation exacts a cost which the first diary conceals. Jeong-woo dies through countless outcomes, sometimes after reaching greater power and sometimes before his plans mature, while the accumulated awareness of those failures wears his identity thin. The records retained in the Soulstone Superbia do not preserve an untouched human soul; they preserve overlapping vestiges bound together by his insistence on leaving something useful. This distinction explains both the breadth of his knowledge and the instability of the person later recovered from it. His repeated lives give him experience beyond one climb, but they also leave him closer to a thought-form than to an ordinarily dead spirit. (Chapters 355–362)

When Yeon-woo reaches the deepest record, he does not merely watch one more memory. He finds Jeong-woo still caught within the repetitions and refuses to let the self-sacrifice continue. Breaking the special benefit wakes the identity at its center, allowing Jeong-woo to recognize the brother for whom he designed the route. Their reunion ends with Jeong-woo promising not to disappear without a word again. It does not resolve the practical problem of his death, but it changes the Pocket Watch from a grave and instruction manual into a temporary home for a person who can speak, choose, and hope for another life. (Chapters 361–363)

A Vestige Chooses to Live

Jeong-woo's first return is emotionally complete but physically precarious. He can manifest through the repaired Pocket Watch and its stored letters, yet his soul has been eroded by the special benefit and can only remain outside for limited periods. His reunion with Henova, whom he regards as a father, confirms that the old relationships attached to Heaven Wing still matter to the returned vestige. At the same time, his need to withdraw into the watch makes every reunion provisional. Rest, proximity to the vessel, and Yeon-woo's protection are conditions of continued existence rather than minor inconveniences. (Chapters 363–365)

Learning that their mother died forces Jeong-woo to confront the failure that drove his climb, but news of Sesha gives him a reason not to remain a memorial. He discovers that he has a daughter with Ananta and decides he wants to hold Sesha with his own hands, grow older beside his family, and assume the responsibilities he never had the chance to fulfill. He directly asks Yeon-woo whether resurrection is possible. The question marks an important change: Jeong-woo no longer measures his worth only by what he can leave behind for someone else; he allows himself to desire a body and a future. (Chapters 363–365)

While that body remains out of reach, he becomes Yeon-woo's internal adviser. Their mental connection lets Jeong-woo help organize incompatible powers, explain the Soulstone and the structure of the Pocket Watch, and refine systems derived from his own research. He also confronts Aether and the memories of Arthia's destruction. Rather than accepting every apology or pretending he bore no responsibility, Jeong-woo distinguishes the betrayals committed against him from his own failure to see how badly he had overworked the clan. He kills Aether after rejecting self-serving excuses, but the reckoning leaves him with a more mature understanding of leadership than the relentless Heaven Wing who first climbed for the Panacea. (Chapters 363–375)

The Vestige, Allforone, and Exuviation

Jeong-woo's limitations become decisive when Allforone moves against Yeon-woo and the displaced forces of the Underworld. He first tries negotiation, drawing on an earlier encounter in which Allforone's words helped inspire the diary's preservation in Superbia. When no exception is granted, Jeong-woo spends the soul power stored in the Pocket Watch to stand in front of his exhausted brother. With Nemesis, Dreaming Illusion, Sky Wings, Dragon Slayer, and Wave of Light, he briefly restores the combat form of Heaven Wing and penetrates an illusory world that has already overwhelmed their allies. The feat protects Yeon-woo, but every sustained attack consumes the finite vestiges composing Jeong-woo's body. (Chapters 395–398)

That intervention clarifies how Jeong-woo can act without being fully resurrected. Dreaming Illusion lets his accumulated records overlap reality, while Perfect Adaptability and the experience of repeated lives make the temporary form frighteningly capable. It remains an expenditure, not a cure. After the battle he must sleep within the Pocket Watch, and later appearances continue to risk exhausting what remains. His frustration at being unable to help Yeon-woo is therefore not solved by a single return to combat; it becomes a reason to seek exuviation, a more stable divine existence, and eventually reunion with the original soul intercepted by the Black King. (Chapters 396–404 and 675)

On the seventy-seventh floor, Jeong-woo again faces Allforone despite knowing that his vestige may disappear. He and Nemesis establish Dream World, temporarily focus the records into his peak living form, and convert the achievements gathered across repeated dreams into divine legends. Having already acquired holiness as Yeon-woo's familiar, he completes the remaining conditions for exuviation and restores the deleted player data of Cha Jeong-woo as a demigod. The advance does not recover his missing soul or end his dependence on constructed identity, but it prevents him from remaining only a fading message. Soon afterward the Black King intercepts the soul intended to succeed Day, separating Jeong-woo's active vestige from the deeper self his family must still rescue. (Chapters 675–700)

Rhea's Rescue and the Sun of Day

Within darkness, Jeong-woo's original soul is found by his mother, Rhea. The reunion overturns the assumption that had governed his life: the woman he entered the Tower to protect is the one who reaches him when even he expects Yeon-woo or Kronos to come first. When escape leaves Rhea close to annihilation, Jeong-woo uses Draconic Eyes and Perfect Adaptability to analyze her Quirinale power despite the overwhelming information involved. He copies enough of its spatial authority to create Closed Space, stopping time around them in suspended animation while trusting that his brother and father will eventually find the sealed fragment. (Chapters 736–742)

The rescue party later reaches that fragment, but Jeong-woo's demigod vestige and sleeping soul are recognized as separate divine beings. Unable to pass the barrier by ordinary means, the vestige overloads Sky Wings, Draconic Eyes, divine power, legends, and even its own structure to awaken the soul. The attempt destroys the constructed body, but the awakened soul catches and absorbs its scattered data. Memories from both existences merge, restoring Cha Jeong-woo as a whole person rather than a diary-derived likeness. When he opens the renewed Sky Wings, their light spreads as Day, completing the family rescue that began with Rhea's refusal to abandon him. (Chapters 750–756)

As leader and sun of Day, Jeong-woo turns his restored power toward the people threatening that family. His space authority can cut off Yeon-woo's transitions, Perfect Adaptability lets him contend with multiple powerful opponents, and the inherited authority of Day lets him withdraw divinity previously bestowed on its members. He combines Kronos' Scythe, Ruling Steps, and Wave of Light against Michael and Hou Yi, absorbs Michael's divinity, and takes the Soulstone Temperantia. The progression is not only military. His anger at discovering Yeon-woo's plan to become the Executor shows that Jeong-woo now refuses the same unilateral sacrifice he once imposed on his own family, even when stopping it means confronting his elder brother. (Chapters 758–775)

Deus Ex Machina and the Return

Yeon-woo nevertheless enters the Black King's final struggle and asks Jeong-woo to remember him. Jeong-woo answers by taking responsibility outside the darkness. While holding off the Bull Demon King, he calls on the ancient gods connected to Day and is acknowledged not merely as their successor but as their complete inheritor. Their laws and holy power raise him to emperor status, beyond ordinary dreams and the wheel. The elevation is forced and takes a toll because the path was not wholly built through his own accumulated strength, but he accepts the danger for a clear reversal of their old relationship: this time, he will be the brother who goes to save Yeon-woo. (Chapters 789–792)

The Changgong Library gives that promise a method. As its librarian, Jeong-woo can strengthen his soul through accumulated wisdom and preserve records while the world gradually loses the ability to remember the Black King's main ego. His divine role becomes Deus Ex Machina, an observer and regulator of the laws of dreams and the wheel. Rather than trying to pull an incomprehensible darkness into the world by force, he restores recognition of Yeon-woo through legends, philosophy, stories, art, and the memories of people still able to perceive him. Those distributed meanings allow “Cha Yeon-woo” to emerge from the concept of the Black King as a person who can be found. (Chapters 792–795)

Jeong-woo then enters the abyss, follows the River of Souls, and reaches the brother who once broke into his repeated benefit. Their exchange is deliberately ordinary—thanks, teasing, and an argument about which twin is taller—because the person he wants is not merely a cosmic authority. As Deus Ex Machina, Jeong-woo sets the cogwheels moving, synchronizes darkness with the dream and wheel, and helps the identity of Cha Yeon-woo cross back into a world that can recognize him. The rescue does not complete Yeon-woo's transcendence, but it fulfills Jeong-woo's central promise: he remembers his brother strongly enough to give him a route home. (Chapters 795–800)

The Changgong Library and the Unreal World

After the main conflict, Jeong-woo remains the Changgong Library's librarian and the balance of the wheel. He monitors records across world lines, supports the order maintained by Olympus, and investigates disturbances that do not fit the established universe. The role suits the same pattern-finding mind that once constructed the diary, but its scale is now mechanical and cosmological: world lines can be numbered, compared, and deleted when stars consume them. His status does not make him casually omniscient. Information outside the Library's jurisdiction remains inaccessible, and irregular gaps can still leave him uncertain about where Yeon-woo has gone. (Chapters 810–841)

That uncertainty becomes personal when Yeon-woo again leaves without a full explanation to pursue star fragments and complete his transcendence. Jeong-woo studies delayed records and divergent world lines with Shanon, looking for the pattern behind his brother's movements while ordinary family life continues elsewhere. His frustration is the mature echo of the Pocket Watch's original lesson: unexplained sacrifice forces the people left behind to carry uncertainty. Even as an emperor, he cannot simply command Yeon-woo to return from territory beyond the known wheel; he must search for a trace and decide what kind of help can cross the boundary. (Chapters 826–861)

At the latest point, Jeong-woo works with the Heavenly Demon to extend the Library's jurisdiction toward the Unreal World. The Heavenly Demon accepts the risk of forcing the control system beyond its normal authority, while Jeong-woo supplies the faculty most suited to the task: mechanical recording and interpretation of information. A new book forms around the name “Cha Yeon-woo,” and Jeong-woo records the thoughts collected from his brother's activity there. The symmetry is explicit. Jeong-woo once left a diary to guide Yeon-woo through the Tower; now he receives and preserves Yeon-woo's diary from the unknown world, ready to follow the record if another rescue becomes necessary. (Chapter 862)

Appearance and personality

Jeong-woo is Yeon-woo's identical twin, and their shared face is convincing enough for Yeon-woo's identity to be mistaken for Heaven Wing's after the latter's death. The childhood contrast is primarily physical and temperamental: Jeong-woo is described as weaker, quieter, and more bookish, while Yeon-woo is the athletic and confrontational twin. As Heaven Wing, Jeong-woo manifests in bright armor with luminous wings; his restored combat appearance is associated with silver armor, Draconic Eyes, and the radiance produced by Sky Wings. These features intensify with his abilities and are not all permanent parts of his ordinary human form. (Chapters 1–2, 180–185, 363, 375, and 395–396)

His gentleness and sociability help Arthia grow, but they initially coexist with naivety and self-righteous urgency. Jeong-woo trusts people deeply, assumes shared purpose will survive extreme pressure, and fails to recognize how his pursuit of the Panacea is exhausting his companions. Betrayal does not make him indiscriminately cruel after his return. He can still joke with Nemesis, tease Yeon-woo, embrace Henova, and reassess former friends, but he no longer accepts excuses merely because they are emotional. His confrontation with Aether shows both sides of that development: he admits his leadership failures while holding the betrayer responsible for deliberate choices. (Chapters 1, 359–375, and 395–396)

Family is the consistent measure of Jeong-woo's choices. Early in life, that devotion becomes secrecy: he decides alone that leaving is the best way to protect his mother and brother. After experiencing the cost, he moves toward reciprocity. He wants to live for Ananta and Sesha, lets Yeon-woo pursue his resurrection, risks himself to wake his original soul, and later refuses to accept Yeon-woo's disappearance as a noble necessity. His wit remains most visible around relatives, but the jokes often sit beside serious resolve. Becoming Deus Ex Machina does not detach him from human attachments; it makes remembering a particular brother the purpose around which he applies cosmic authority. (Chapters 363–375, 736–800, and 810–862)

Abilities and powers

Jeong-woo's power system begins with unusual adaptability and a dragon contract, develops through magic, spatial control, and the accumulated achievements of repeated lives, and culminates in the authorities of Day and Deus Ex Machina. The stages are connected rather than interchangeable. Perfect Adaptability helps him learn and integrate; Draconic Eyes supply information; Sky Wings converts his dragon and magical powers into a combat framework; vestige techniques let his records act after death; and Day gives those earlier systems divine and eventually emperor-scale authority. His latest specialty is not simple destructive output but the observation, regulation, and recording of worlds. (Chapters 2, 180–185, 355–375, 675, 742–800, and 862)

Perfect Adaptability and magical mastery

Perfect Adaptability is Jeong-woo's defining trait. It lets him accept mana of differing attributes, understand unfamiliar structures unusually quickly, and apply what he learns to his own body and magic. Combined with exceptional mana affinity, it explains how a physically weak beginner grows into a high ranker and why his combat repertoire extends across elemental magic, alchemy, mechanical techniques, summoning, spirit arts, and dragon language. The trait accelerates learning and integration; it does not supply knowledge from nothing. Jeong-woo still requires observation, experience, or instruction, and several of his greatest advances begin with data obtained through Draconic Eyes or the repeated benefit. (Chapters 1–2, 180–185, 355–375, and 742)

His mature spellcasting emphasizes breadth and simultaneous control. He can use multiple-casting, deploy dense arrays of magic squares through Random Shooting, erect barriers, interfere with magic through Impassibility, and combine stored spells with movement and swordsmanship. Dragon's Knowledge and the formulas preserved in Dragon Slayer further reduce the time required to reproduce magic he has already analyzed. These advantages make him difficult to predict, but output and vessel remain limits. Wave of Light was initially dangerous even to its user, Random Shooting consumes the power behind every formula, and a vestige body cannot sustain the same volume indefinitely merely because the spell pattern is understood. (Chapters 180–185, 375, and 395–398)

Perfect Adaptability later expands beyond conventional mana. Jeong-woo copies enough of Rhea's Quirinale to establish Closed Space, masters the spatial interactions needed to cancel Yeon-woo's Shukuchi, and absorbs divine power compatible with Day. The same openness creates risk: reading a god's information overheats his soul, joining incompatible vestige and soul states requires self-destruction and reintegration, and emperor power received through ancient gods initially rests on a linkage that can fail. Adaptability makes extreme transitions possible, but the chapters repeatedly show Jeong-woo paying for the information and capacity required to survive them. (Chapters 742, 750, 758–767, and 790–792)

Draconic Eyes, the Magic Circuit, and Kalatus

Jeong-woo obtains his draconic foundation through contact and contract with Kalatus, who recognizes him as a successor. Draconic Eyes let him perceive the flow and composition of mana, analyze beings and structures, and pursue the truths dragons value. His early Magic Circuit and affinity allow that information to become usable power, while the Blessing of the Dragon strengthens his body beyond its frail human beginning. This inheritance also gives him limited standing against laws connected to dragons and supports the authority with which he resists system-like interference. It is a succession relationship, not proof that Jeong-woo naturally possesses every power of Kalatus. (Chapters 1–2, 180–185, 375, 395–398, and 411–423)

The eyes develop from magical perception into a tool for reading divine information. Jeong-woo uses them on Rhea to observe Quirinale, on his separated soul to find a route through its barrier, and later as Insight when testing whether Kronos is concealing Yeon-woo's plan. The quantity of information remains a practical limit. Locked or overwhelmingly complex targets can resist interpretation; Allforone's hidden body is not simply exposed because Jeong-woo looks at it, and reading Rhea while his soul is failing nearly destroys him. Draconic Eyes provide access to truth in proportion to Jeong-woo's capacity to receive and process it. (Chapters 395–398, 742, 750, and 758)

His dragon-body techniques strengthen the physical and territorial side of the inheritance. Draconic Blood heightens the body and senses, Draconic Pressure suppresses weaker beings within his presence, and Breath establishes a dragon's territory around him. Jeong-woo had already refined multiple stages of Pressure by the time his Shadow Dojo data was recorded, and later reconstructed forms reproduce his prime control. These powers interact directly with Sky Wings and his spellcasting, but their effectiveness varies with the body manifesting them: a temporary vestige can recreate the pattern and force, while a living or fully integrated divine vessel can maintain them without burning through a finite reserve of letters. (Chapters 180–185, 375, and 395–398)

Sky Wings

Sky Wings is Jeong-woo's signature numbered skill, identified as skill 002. Its original form unifies his dragon contract, Magic Circuit, and extensive magical knowledge into luminous wings that provide extreme flight speed, maneuverability, defense, and weapon-like force. The wings can shield him, cut through attacks, or serve as the platform from which he spreads Draconic Blood, Pressure, Breath, and mass spellcasting. Their versatility is why “Heaven Wing” describes more than an appearance: the skill is the core interface through which he turns analysis and mana into a mobile combat domain. (Chapters 180–185, 375, and 395–398)

The restored vestige demonstrates both the skill's reach and its limits. Inside Dreaming Illusion, Sky Wings recreates Jeong-woo's peak form, drives Wave of Light and Random Shooting, and lets him advance through Allforone's projected territory. Because the body is made from records and stored soul power, heavy use causes it to flicker and lose cohesion. Later, when the vestige tries to reach the original soul, Sky Wings overheats under divine power beyond its designed limit and contributes to the collapse of Jeong-woo's legends. The skill can channel extraordinary power, but it cannot make the vessel carrying that power indestructible. (Chapters 395–398, 675, and 750)

After soul and vestige merge, Sky Wings becomes an expression of the sun of Day. Its light fills darkness, helps Jeong-woo impose spatial authority, and later channels the laws of the ancient gods who acknowledge him as their complete inheritor. Maximum output can expand his senses and stabilize a Closed Space, while emperor succession makes the wings faster and fiercer than their high-ranker form. The progression preserves the original mechanics—movement, territory, protection, and concentrated release—while changing the source and scale from dragon mana to divine light and cosmic law. (Chapters 742, 750–775, and 790–792)

Dragon Slayer, Wave of Light, and spell formulas

Dragon Slayer is Jeong-woo's signature sword and an equipment-based amplifier of his draconic combat system. The reconstructed weapon he uses through Dreaming Illusion is formed from Kalatus' bones and Cores. Dragon Catcher exerts dominance over targets bearing a dragon trace; Dragon's Gaze attacks a wounded target through fear and draining effects while undermining ordinary immunity and durability; and Dragon Formula stores permanent dragon-language spells that can be activated at reduced cost. These functions interact exceptionally well with Draconic Eyes and Perfect Adaptability because Jeong-woo can identify a structure, choose an appropriate formula, and release it without rebuilding the spell from the beginning. (Chapter 375)

Wave of Light is his signature destructive release through the sword. It combines an immense flash or lightning-like cut with enough force to split space, erase broad attack fields, and damage spiritual as well as physical targets when paired with appropriate authority. Jeong-woo recalls that its early form was so difficult to control that using it could amount to suicide; later mastery lets him shape it into a repeatable high-ranker technique and even redirect opponents by disguising the true target. Its destructive reputation does not remove matchup limits. Allforone can restore projected fog after being cut, and beings of comparable divine status may require Scythe, Day authority, or an opening created by another combatant. (Chapters 375, 395–398, 675, and 758–767)

Random Shooting, triple-casting, Impassibility, Slash, and broad memorized magic complete the system around the sword. Random Shooting fills an area with magic squares and releases many formulas at once; Slash can carry lightning through a close weapon exchange; and Impassibility denies or disrupts hostile magic rather than merely enduring it. The skills make Jeong-woo a hybrid swordsman and mage instead of a specialist limited to one range. Dragon Slayer remains important precisely because it connects those modes. The sword does not create his adaptability or mana, and reconstructed copies depend on Dreaming Illusion, but it makes stored draconic knowledge immediately useful in a fast battle. (Chapters 180–185, 375, and 395–398)

The special benefit, vestiges, and Dream World

The special benefit gives Jeong-woo repeated lives whose experiences accumulate around the route he wants to leave Yeon-woo. Its practical result is an enormous store of tested knowledge: hidden pieces, betrayals, possible ascensions, and failed methods are preserved even when an individual life ends. It is not ordinary time travel under his unrestricted control, nor does it guarantee a victorious timeline. Many cycles repeat loss, and their value comes from Jeong-woo's decision to organize the surviving information into a usable inheritance. The deeper cost is erosion, because the self carried across those repeated endings becomes a collection of overlapping vestiges rather than an intact soul. (Chapters 355–362)

Superbia within the Pocket Watch lets those vestiges persist as letters, memories, and will. Jeong-woo can communicate mentally, emerge for short periods, and share knowledge with Yeon-woo after the watch is repaired. Dreaming Illusion, used with Nemesis, projects the recorded self into a world where his old body, equipment, and powers can temporarily affect reality. Dream World is the corresponding combat barrier, shaped to harmonize with Perfect Adaptability and trap or pressure an opponent inside Jeong-woo's reconstructed conditions. These mechanisms explain his posthumous effectiveness without treating the vestige as a normal resurrection. (Chapters 355–375, 395–398, and 675)

The limits are structural. Manifestation consumes stored soul power, distance from the Pocket Watch and long activity are dangerous, and severe expenditure can delete the remaining likeness. Exuviation stabilizes the vestige as a demigod by turning repeated achievements into legends, but it still does not make that constructed being identical to the original soul. Full restoration occurs only when the vestige willingly burns itself apart and the awakened soul absorbs its data. After that merger, Jeong-woo no longer depends on the Pocket Watch as his body, though the diary remains the model for his later work of preserving Yeon-woo through records. (Chapters 363–365, 395–404, 675, and 742–750)

Day, Quirinale, and Deus Ex Machina

Jeong-woo is selected as the successor of Day because his lineage joins Kronos' Pneuma of Time and Rhea's Quirinale of Space, he inherits the will associated with Uranus, and his life in the Tower produces the required achievements. After merging with his soul, he rises as Day's sun and leader. This authority lets him radiate divine light against Night, control or close space, apply Ruling Steps, and retrieve divinity that Day previously bestowed on members such as Michael. He can absorb compatible divine power and Soulstones, but the authority depends on status and legend; it is not a universal command over every god or every form of light. (Chapters 693, 742–767, and 775)

Closed Space is Jeong-woo's first direct use of copied Quirinale. By folding Sky Wings around himself and Rhea, he establishes a domain in which he is creator and ruler and stops the local flow of time. It saves Rhea from immediate annihilation, but it also confines Jeong-woo because the caster must maintain the suspended state. Later spatial control is more flexible: he can read transitions, cancel Shukuchi, limit an opponent through Ruling Steps, and coordinate that control with Wave of Light or Scythe. The progression comes from inherited compatibility plus analysis; his initial copy is desperate, damaging, and far from effortless mastery. (Chapters 742, 750, and 758–767)

Ancient gods eventually recognize Jeong-woo as the complete inheritor of Day and raise him to emperor status. As Deus Ex Machina, he becomes an observer and mechanical regulator of dreams and the wheel, capable of moving cogwheels, synchronizing the Black King with the known universe, and restoring access to a person through distributed records. His position as Changgong librarian supplies world-line information and lets him create record modules with exceptional precision. Its latest limit is jurisdiction: he cannot initially observe the Unreal World at all. Only after the Heavenly Demon forces an expansion can Jeong-woo focus the new module on Yeon-woo and record the incoming information as a diary. (Chapters 790–800, 810–841, and 862)

Power progression

Relationships

• Yeon-woo: Jeong-woo leaves his diary and abilities to the elder twin he trusts most, but also leaves him the burden created by an unexplained disappearance. Yeon-woo recovers Jeong-woo from the repeated benefit and pursues his full resurrection; Jeong-woo later becomes Deus Ex Machina, remembers Yeon-woo when the world cannot, and brings his identity back from the Black King's abyss.
• Ananta: Ananta is Jeong-woo's partner and Sesha's mother. Discovering that they survived gives his vestige a concrete reason to seek resurrection: he wants a body with which he can share ordinary family life rather than watch them from a relic.
• Sesha: Jeong-woo learns about his daughter only after returning through the Pocket Watch. His desire to hold and raise Sesha changes survival from an abstract hope into a responsibility and anchors his decision to live again.
• Kronos and Rhea: Jeong-woo maintained more curiosity about his absent father than Yeon-woo did, but his deepest childhood purpose was curing his mother. Rhea ultimately rescues his soul from darkness, while Kronos fights beside him and lends Scythe; their reunited family becomes the reason Jeong-woo opposes Yeon-woo's solitary sacrifice.
• Henova: Jeong-woo treats Henova as a father figure and returns to him soon after emerging from the Pocket Watch. Their reunion confirms that his Tower family remains part of the life he wants restored.
• Kalatus: Kalatus recognizes Jeong-woo as a draconic successor, granting the foundation for his Draconic Eyes, Blessing of the Dragon, Magic Circuit, Sky Wings, and Dragon Slayer system.
• Nemesis: Nemesis, also called Mirne in Jeong-woo's memories, is his dragon companion and partner in Dreaming Illusion. He chooses to fight beside the returned vestige despite the risk, and their banter reflects friendship rather than a purely contractual bond.
• Allforone: Jeong-woo once admires Allforone and takes inspiration from his words when preserving the diary, but later regards him as an enemy who divides families. Their confrontations push Jeong-woo to expend his vestige for Yeon-woo and then to exuviate into a demigod.
• Heavenly Demon: The Heavenly Demon appoints Jeong-woo librarian of the Changgong Library and helps define his work as the balance of the wheel. At the latest point, they cooperate to extend observation into the Unreal World, with Jeong-woo handling the mechanical record focused on Yeon-woo.

Items

• Pocket Watch: The vessel for Jeong-woo's diary, succession, Soulstone, repeated-life vestiges, and temporary manifested body. It carries his final message to Yeon-woo and later becomes the means through which the brothers speak before his full restoration.
• Laputa: Kalatus' floating castle and Arthia's clan base, tying Jeong-woo's dragon succession to the organization he founded and to the legacies his brother later recovers.
• Dragon Slayer: Jeong-woo's signature sword and the artifact that stores Dragon Formula, applies anti-dragon dominance and draining effects, and channels Wave of Light and his hybrid sword-magic combat style.