Yoo Joonghyuk

Yoo Joonghyuk is the regressor at the center of Three Ways to Survive and one of the principal members of Kim Dokja's Company. He begins the scenarios as an austere survivor who believes advance knowledge, overwhelming force, and the option to abandon a failed world-line are his only reliable advantages. Kim Dokja's arrival makes that strategy increasingly impossible: the unreadable stranger changes supposedly fixed disasters, insists that people in different world-lines are not interchangeable, and becomes the companion Yoo Joonghyuk is least able to sacrifice.

His history cannot be reduced to one continuous sequence of 1,864 lives. The familiar Yoo Joonghyuk calls himself a third-turn regressor, the Secretive Plotter belongs to the original long regression history, and an altered 1863rd-turn Yoo Joonghyuk complicates the familiar man's apparent place in the chronology. The text presents competing explanations for that contradiction rather than settling it. The still earlier zero turn reveals why Regression exists, but the familiar Yoo Joonghyuk later states that his conscious recall of that life remains incomplete.

Biography

The Third Regression and the First Unclassifiable Companion

At the start of the Seoul scenarios, Yoo Joonghyuk presents himself as a third-turn regressor and former professional gamer. Regression has given him tactical knowledge, reacquired martial skills, and the emotional habit of treating strangers as pieces whose future usefulness can be estimated. His immediate aims are practical—secure resources, control the route through Seoul, and recover his younger sister Yoo Mia—but his solitude is also defensive. Since his first regression, he believes he has possessed subordinates and enemies rather than true companions, because every relationship can be erased by death or departure into another world-line. (Chapters 10–12, 71)

Kim Dokja violates that model at their first meeting. Sage's Eye cannot read him, yet he knows facts about Yoo Joonghyuk's skills and future that no ordinary incarnation should possess. Yoo Joonghyuk therefore interrogates him, bargains for information, and throws him into an ichthyosaur as a lethal test: a person claiming to be useful must prove that he can survive without being carried. The act is ruthless, but Yoo Joonghyuk later watches the river and wonders whether he turned away too soon. Kim Dokja's survival creates an anomalous relationship in which violence, suspicion, and a reluctant expectation of the other's return coexist from the beginning. (Chapters 11–16)

That anomaly quickly becomes dependence. Yoo Joonghyuk has already rescued Lee Jihye and accepted responsibility for training her, contradicting his pose of complete self-sufficiency. In the Theatre Dungeon, the Cinema Master exploits the accumulated memories inside his mind, showing that repeated lives have made him powerful without making him psychologically whole. Kim Dokja helps break the control and later leaves instructions through Lee Jihye while Yoo Joonghyuk is unconscious. Their conflict over the Absolute Throne then prevents Yoo Joonghyuk from imposing a single ruler's optimized order on Seoul. Kim Dokja defeats him and destroys the throne, forcing him to continue in a world whose people cannot be managed as a solved route. (Chapters 33, 41, 46, 71)

Disasters, Lost Futures, and the Decision Not to Regress

The disaster scenarios make Yoo Joonghyuk face the moral residue of lives he has supposedly left behind. When Lee Seolhwa appears under the parasite controlling the Disaster of Questions, he remembers her as his lover in the second turn but does not simply claim that former relationship as the present woman's identity. He wants to remove the parasite and recruit her as a companion in this life. Soon afterward, the 41st-turn Shin Yoosung returns as the Disaster of Floods and confronts him with an abandoned future. In defending Kim Dokja, Yoo Joonghyuk publicly calls him a companion, while his anger at Shin Yoosung's violence exposes grief and responsibility that regression never erased. (Chapters 82–84, 103)

In Peace Land, cooperation becomes more ordinary and therefore more revealing. Yoo Joonghyuk joins Kim Dokja's plan against Orochi, lends the sword needed to secure a hidden piece, fights past the safe duration of Giant Body Transformation, and then cooks for the party while allowing himself only a small sign of satisfaction. Nirvana attacks precisely this new attachment. Although Yoo Joonghyuk rejects the offer to merge identities because he already has a companion, the assault turns his regression depression into an urge to kill himself and begin again. Kim Dokja interrupts that attempt by arguing that a later world cannot replace the people living in this one. (Chapters 120, 130–144)

The aborted suicide is not a permanent cure; it changes the question Yoo Joonghyuk must answer whenever Regression offers escape. Present people have now produced futures absent from his memories: Lee Seolhwa can be saved, the Disaster of Floods can become more than a discarded failure, and Kim Dokja can survive tests designed to eliminate uncertainty. Yoo Joonghyuk remains harsh because these discoveries increase rather than remove his fear of loss. Nevertheless, the current world-line becomes a deliberate commitment instead of a disposable draft. That choice later supports his refusal to regress during the Demon King Selection and his warning that another world-line would contain different people, not restored copies of the dead. (Chapters 141–144, 270, 527–528)

A Shared Nebula and the 73rd Demon King's Death

By the Dark Castle, Yoo Joonghyuk is no longer acting only beside one inexplicable survivor. He fights among a group whose relationships and victories exist because Kim Dokja changed the expected route, and he begins contributing as one powerful member rather than demanding that every decision reproduce his remembered future. That development is tested when Kim Dokja becomes the 73rd Demon King and the scenario requires the others to kill him. Yoo Joonghyuk initially resists the role imposed on them, because a technically successful clear now demands the destruction of the person who made this particular company possible. (Chapters 146–188)

When the execution can no longer be avoided, Yoo Joonghyuk's participation is controlled rather than treacherous. He understands that Kim Dokja has prepared a route toward resurrection, restrains the destructive technique he uses, and holds him as the Demon King disappears. The distinction matters: he is neither blindly obeying Kim Dokja's plan nor turning against him, but trying to preserve the smallest chance of return inside a scenario designed to make their companionship a weapon. His earlier habit was to judge a death by its strategic value; here, even an allegedly reversible death becomes an event he mourns and a burden he carries with the other survivors. (Chapters 178, 186–188)

Afterward, Yoo Joonghyuk considers Regression and rejects it for a reason his earlier selves could not have accepted. A Kim Dokja encountered in another world-line would not be the same person who shared this one, and resetting would abandon both the dead companion and everyone still grieving beside him. He tells the survivors that he will not give up on this life and asks them not to give up either, converting Kim Dokja's earlier warning into collective leadership. The company is not yet a formal answer to all of his isolation, but it has become evidence that perseverance must mean continuing with irreversible consequences rather than searching for a cleaner replacement world. (Chapter 189)

Mourning, the Demon Realm, and Life-and-Death Companionship

Yoo Joonghyuk's answer to mourning is action within the same life. He enters the Demon Realm through a personal scenario, carries Uriel's doll, and searches for Kim Dokja while using Kim Dokja's name to overturn an industrial complex. When they reunite, he reports that the companions on Earth remain alive and continue telling Kim Dokja's story. This pursuit does not make him compliant: he still refuses Kim Dokja's attempts to take over his point of view or script every choice. In the Demon King Selection, he insists on completing his own task with his own sword, preserving companionship without surrendering the agency that regression and the novel have repeatedly denied him. (Chapters 212, 221, 226, 245)

The Demon Realm also reconnects him with the Breaking the Sky Sword Saint. He risks the Mirror Eyes trial to prove that he is the disciple she remembers, and she recognizes not only his technique but his emotional change, identifying Kim Dokja as his first friend. Her later decision to remain behind against destruction becomes another loss he cannot undo. Her final instruction—that he is no longer alone—links martial inheritance to the larger transformation of his life. Yoo Joonghyuk carries the sword school's history forward, but the lesson he must preserve is that strength now includes trusting other people to share an unwinnable burden. (Chapters 232–233, 249)

That principle becomes embodied in the story Life and Death Companions. During the selection battle, Yoo Joonghyuk drives third-stage transcendence beyond a safe bodily limit and reaches a condition in which an earlier self might have accepted death and Regression. He refuses the Stigma even when his sponsor does not answer, and the story created through repeated survival, conflict, killing, and return with Kim Dokja supports him. His victory and subsequent hospitalization make the cost concrete: choosing this life does not protect him from ruinous injury. It means accepting treatment, dependence, and an uncertain continuation instead of declaring the damaged world a failure. (Chapters 256, 268–276)

Defining Himself Beyond Failed Selves

Later scenarios turn Yoo Joonghyuk's accumulated selves into an explicit opponent. A story-shadow formed from failed regressions claims that his past defeats determine the path of his sword and the limits of his identity. He changes that trajectory, surpasses the failure associated with the 41st turn, and declares that he is Yoo Joonghyuk. The assertion is not simple pride: it separates inherited memories from present judgment. Once those histories cease to be a final verdict, he can value what they taught him without allowing them to dictate whom he must distrust, sacrifice, or become. (Chapter 311)

His demand for self-knowledge intensifies when Asmodeus and the Secretive Plotter expose contradictions around Ways of Survival. Kim Dokja's concealed information now feels like a denial of Yoo Joonghyuk's right to understand his own life, so he pursues answers, disappears to train in Eden, and refuses reassurance in place of revelation. In Kaizenix, however, this search does not isolate him completely. He spends years organizing resistance and looking for the others with Sage's Eye. He also confronts Anna Croft over remembered betrayal but can still fight beside and protect her against a shared enemy, judging her present actions rather than treating an old route as automatic guilt. (Chapters 342, 346, 356, 376, 390)

During the Great War of Saints and Demons, that revised judgment becomes leadership. Yoo Joonghyuk stops younger companions from spending themselves in ineffective heroics, carries the injured, assigns workable roles, and commands constellations whose pride would normally resist an incarnation. He still argues with Kim Dokja and Han Sooyoung about acceptable risk, but no longer assumes that advance knowledge makes his will supreme. The company and its allies become people whose independent decisions he must coordinate rather than pieces he may overwrite. His power remains indispensable, yet his more durable achievement is learning to preserve a battlefield where others can act and where their unpredicted choices may be better than his calculations. (Chapters 312, 376, 390, 407–408)

The Original Regressor, the Zero Turn, and the World-Line Manuscript

The Secretive Plotter is eventually identified as the original Yoo Joonghyuk who endured the long regression history and reached its conclusion as an Outer God. The familiar Yoo Joonghyuk confronts him with stories that the Plotter does not possess, particularly Life and Death Companions, proving that identical faces and overlapping memories do not make them one person. The chronology remains deliberately unstable: Kim Dokja explains the altered 1863rd-turn Yoo Joonghyuk as regressing into the familiar world-line, while the familiar man's attribute reverts to “3rd turn” and he proposes that 1864th-turn memories only overlaid his own temporarily. Han Sooyoung calls the contradiction a textual paradox rather than solving it. (Chapters 419, 448, 454)

In the Final Scenario, Yoo Joonghyuk fights with Kim Dokja and Han Sooyoung through myth-grade enemies, draws upon the Hell of Eternity, and adapts to restrictions with weapons gathered across many lives. At the Final Wall, he tries to cross with his companions even though the passage was constructed for only one Yoo Joonghyuk. When they reach the Oldest Dream, he catches Kim Dokja's blade in his hand to prevent another suicide. The Plotter then separates from the familiar man's body and reaches his own conclusion with the child at the center of the world; that choice belongs to the Plotter, while the familiar Yoo Joonghyuk survives as a distinct person flooded by, but not reducible to, another self's memories. (Chapters 465, 493, 500, 505, 514–515)

The zero-turn narrative reveals to the reader that an unregressed Yoo Joonghyuk could finish the scenarios, rebuild the world, marry that world-line's Lee Seolhwa, and grow old. At the end of that life, he asks the Demon King of Salvation about his origin and chooses Regression in the hope of crossing the wall and meeting him again; Kim Dokja creates the Stigma from the lives and stories he knows. The familiar Yoo Joonghyuk later recovers enough of the zero turn to remember Kim Dokja's presence and infer that he remains alive as the Oldest Dream, but explicitly says he cannot remember everything. The peaceful marriage and complete revealed history therefore belong to the zero-turn life, not automatically to his current relationships or conscious autobiography. (Chapters 518, 524–525, 527)

When the company discovers that the returned Kim Dokja is an Avatar, Yoo Joonghyuk develops Group Regression and warns every volunteer that another world-line is not the past: its people will not possess their shared memories, and abandoned losses will not be repaired. Probability allows one overall collective expedition. A world-line entanglement interrupts the crossing and requires him to gather stories and reactivate the Stigma, but this is a continuation of that disrupted passage, not a second independent use. After the 1865th-turn rescue attempt, the Regressor attribute and both Regression Stigmata disappear, leaving him unable to launch another expedition and forcing the company to live with an incomplete result. (Chapters 522, 527–531, 541)

Years later, Yoo Joonghyuk has no scenario-defined occupation and no regression route to offer. He takes the replica Final Ark and volunteers to distribute Han Sooyoung's manuscript to world-lines containing reincarnated fragments of Kim Dokja, accepting a voyage that may last centuries because his endurance gives the story its best chance to arrive intact. Han Sooyoung becomes his sponsor and grants Cloud System; Biyoo rescues him in the Dark Stratum and helps connect distant writers to the manuscript. He revises factual errors, communicates through the changing text, and returns grey-haired after reaching every accessible world-line. At the hospital he supports Han Sooyoung as the company's stories return, then joins the others before the door opens; the outcome beyond that door is not explicitly shown. (Chapters 544, 547, 549–551)

Appearance and personality

Yoo Joonghyuk is consistently described as exceptionally handsome, with a sharply defined jaw and an appearance striking enough to disorient people meeting him in otherwise dangerous circumstances. His usual silhouette is equally recognizable: a tall, powerful swordsman in a long black coat, moving with the economy of someone who expects combat at any moment. The coat and sword become visual shorthand for his arrival across very different world-lines, while his controlled face and terse speech make his beauty seem severe rather than approachable. (Chapters 30, 362, 544, 549)

His physique is the product of relentless conditioning as much as supernatural statistics. Even after the scenarios, he runs repeated laps without relying on skills until sweat soaks him, and transcendental force remains grounded in a body trained through innumerable battles. That discipline does not make him physically invulnerable: high-level transformations tear at him, transcendence has strict safe limits, and close combat leaves visible bruising. His body is best understood as a carefully maintained instrument that he repeatedly risks beyond its designed endurance, not as effortless proof that he cannot be hurt. (Chapters 144, 268, 522, 545)

The epilogue visibly records the cost of continued endurance. During the purposeless years after the failed rescue, his hair becomes stiff and unkempt and his face goes unwashed, signs that discipline has lost its direction rather than vanished. The Ark voyage then adds premature grey strands and badly damaged stories while leaving his face otherwise recognizable. When he returns, the black-coated protagonist still looks like Yoo Joonghyuk, but the grey patches make the time he spent carrying someone else's manuscript impossible to hide. (Chapters 545, 549–551)

Yoo Joonghyuk is proud, laconic, and ruthlessly oriented toward effective action. His opening treatment of Kim Dokja shows that he will threaten or endanger a stranger when survival information is at stake, yet the zero turn reveals that calculation did not begin as casual cruelty: even while afraid, the unregressed pro gamer chooses to confront the strongest attacker rather than prey on an easier victim. Regression hardens courage into suspicion because he has watched optimized plans fail and companions disappear. His coldness is therefore a practiced survival method, though never an excuse for all of the harm it causes. (Chapters 11–12, 518)

Care most often appears through work rather than confession. He rescues and trains Lee Jihye, cooks because he trusts his own preparation, organizes battlefields, carries injured companions, and screens Group Regression volunteers so that grief alone does not send them blindly into another world-line. Before the Ark voyage he bickers instead of delivering a tender farewell, but promises Yoo Mia he will return and privately asks Han Sooyoung to protect her. These acts preserve his abrasive manner while showing that responsibility has expanded from a few selected people into a company whose survival he treats as his own task. (Chapters 33, 131, 407, 528–529, 547)

His central vulnerability is loneliness joined to uncertainty about who he is. The accumulated regressions leave him open to mental attack and the temptation to escape through another life; later, contradictions in his earliest memories deprive him even of a stable numerical history. What changes is not his capacity for grief but his response to it. He learns to revise judgments when present people differ from remembered counterparts, to ask Han Sooyoung for help, and to carry irreversible failure without immediately abandoning the world. Solitary compulsion becomes collective perseverance, culminating in a voyage undertaken not to recover his role as protagonist but to deliver the story of everyone who survived beside him. (Chapters 41, 144, 189, 390, 522, 547–551)

Abilities, attributes, and stories

Regression

Regression is the Stigma that defines Yoo Joonghyuk's repeated lives. The zero-turn history reveals its origin: after completing the scenarios and growing old, Yoo Joonghyuk asks whether crossing the Final Wall through further lives might let him learn his origin and meet the Demon King of Salvation again. Kim Dokja, acting as his eventual sponsor, creates Regression from the lives and stories he knows. On activation, it selects a new world-line branching from the scenarios' beginning under the operational criteria of the current line. It does not rewind, repair, or resurrect the abandoned world; the people encountered afterward are distinct lives. (Chapters 525, 527–528)

The Stigma carries scenario knowledge, memories, and the basis for reacquiring trained capacities, but persistence is imperfect and psychologically costly. It produces isolation, fragmented recall, and regression depression, and it cannot transport relationships as owned possessions. Yoo Joonghyuk progresses from treating it as an available escape to refusing it during the Demon King Selection, then evolves it for one Probability-approved Group Regression expedition. The interrupted crossing requires reactivation during the same passage, not a reusable second attempt. After the expedition, Regression, Group Regression, and the Regressor attribute all vanish; by the manuscript voyage he is explicitly a former regressor without his original sponsor. (Chapters 41, 144, 270, 522, 527–531, 541, 547)

Transmission and accumulated regression knowledge

Transmission is an exclusive skill associated with the Regressor attribute. It gradually reawakens techniques learned in earlier lives, allowing the current body to recover sword forms, movement, defense, and other trained capacities faster than ordinary practice would permit. Its broader informational counterpart is Yoo Joonghyuk's remembered knowledge of scenarios, hidden pieces, enemy patterns, and future companions. Combined, these advantages explain his early dominance: he rarely enters an encounter without a model of its rules and a catalog of methods his body can restore. (Chapters 41, 118, 323)

Neither Transmission nor memory is omniscient. Kim Dokja repeatedly changes events until remembered routes cease to predict the present, and the person in a new world-line may make choices unlike a counterpart with the same name. Mental attacks can also weaponize the crowded pasts inside Yoo Joonghyuk, while later revelations show that even his turn number and earliest history may have been overlaid or fragmented. After Regression disappears, the experience and trained judgment remain part of him, but the narrative never presents them as a complete archive. He must interpret inherited knowledge rather than obey it. (Chapters 41, 311, 454, 522, 541)

Pro Gamer cognition and battlefield analysis

Pro Gamer begins as an ordinary-world attribute rooted in Yoo Joonghyuk's career and awakens during the zero-turn subway fight. It digitizes the situation into game-like information and lets him control his body as though operating an avatar, accelerating calculations about timing, targets, counters, and movement. Across later scenarios, this cognition lets him organize rapidly changing battle data, switch among weapons when a rule denies his preferred sword, and combine observed patterns with the experience accumulated through Regression. (Chapters 268, 500, 518)

The attribute improves analysis rather than supplying foreknowledge. In the zero turn, his first calculation fails because he does not know how an opponent invested coins; later, Kim Dokja and other people repeatedly choose outside optimized forecasts. Pro Gamer also cannot answer moral questions such as whether a strategically costly companion should be saved. Its enduring strength is adaptability: after the Star Stream weakens, Yoo Joonghyuk still diagnoses the Scenario Museum's North Star Five March Formation and strikes its seven critical points. The structured cognition survives even when system-supported certainty does not. (Chapters 312, 500, 518, 544)

Breaking the Sky Swordsmanship and transcendence

Breaking the Sky Swordsmanship comes from Yoo Joonghyuk's histories in the First Murim and his discipleship under the Breaking the Sky Sword Saint. Its system includes sword forms, footwork, body control, and Breaking the Sky energy, while transcendence raises the user's status beyond ordinary incarnation limits. At higher stages, he can damage constellations, Outer Gods, barriers, and myth-grade enemies. The art is not merely a stored skill: his reunion with his master requires him to prove that the technique and the changed person wielding it still belong to the disciple she remembers. (Chapters 41, 177, 232–233)

Greater transcendence imposes greater bodily risk. During the Demon King Selection, the third stage has an approximately ten-minute safe limit and begins destroying his body when prolonged. Giant Body Transformation can supply the scale required for larger sword attacks, while Pro Gamer cognition improves their timing, but neither removes recoil or protects him from mental control and story damage. By changing the sword trajectory predicted by his failed selves, Yoo Joonghyuk surpasses an inherited limit rather than simply gaining a level. He remains one of the highest Transcendents after the scenarios, though the dissolving system and damaged stories leave the art weaker than at its Final Scenario peak. (Chapters 268, 311, 544, 549–550)

Giant Body Transformation

Giant Body Transformation enlarges and empowers Yoo Joonghyuk's body so that it can express giant-scale strength and sword techniques against enemies whose status exceeds an ordinary incarnation. He uses it against Orochi, Nirvana, and the Devourer of Dreams, often combining the transformation with Breaking the Sky attacks. The technique's actual lineage is distinct from that sword school: he identifies Briareus as the teacher from a prior turn, and Transmission later restores the transformation while he is temporarily acting as an Outer God. (Chapters 130, 143, 177, 323)

Its advantage is concentrated power, not sustainable size. Early use lasts roughly five minutes, and overuse demands exceptionally high physical statistics while leaving the body vulnerable to collapse. When the duration ends, Yoo Joonghyuk may lack the force for a required finishing strike; the exhaustion also creates openings for mental interference. His increasing statistics let him survive more ambitious applications but never establish that the recoil disappears. No separate late-story evolution is confirmed, so it remains a dangerous support technique within his wider arsenal rather than an unlimited permanent form. (Chapters 130, 144, 188, 323)

Sage's Eye, martial perception, and broad weapon mastery

Sage's Eye reads character information and supports Yoo Joonghyuk's rapid evaluation of allies and opponents. Its failure against Kim Dokja at the bridge is therefore significant: the Fourth Wall blocks the ordinary character reading and announces that this stranger does not fit the system Yoo Joonghyuk trusts. Over time, system information is supplemented by transcendental senses, regression experience, and martial perception. He can search for companions, identify formations, recognize weapon properties, and locate critical openings even when a status window alone cannot solve the encounter. (Chapters 11, 376, 544)

His weapon mastery is similarly broad. Numerous lives have exposed him to swords, unarmed arts, movement techniques, defensive methods, and weapons from different schools, so he can cycle through an improvised arsenal during the Final Scenario's storage restrictions. Breaking the Sky swordsmanship remains his preferred framework, but Pro Gamer cognition lets him convert unfamiliar tools into effective tactical choices. The limitation is always contextual: perception does not provide the Probability needed to defeat a superior status, Sage's Eye can be blocked, and every technique retains its own equipment and stamina costs. The underlying expertise remains usable as the Star Stream fades. (Chapters 41, 500, 541, 544)

Story power: Life and Death Companions, Hell of Eternity, and collective Giant Stories

Yoo Joonghyuk's strongest late powers arise from lived narratives rather than isolated skills. Life and Death Companions records the repeated cycle in which he and Kim Dokja save, injure, mourn, and return for one another. Hell of Eternity contains the suffering and accumulated force of regression, while the company's Giant Stories are earned through shared scenario victories. Such stories can reinforce his body, lend status, reproduce recorded events, and respond when their narrative conditions are invoked; their power depends on the bearer actually possessing the relevant history. (Chapters 270, 448, 465)

That dependency makes story power central to identity. Life and Death Companions belongs to the familiar Yoo Joonghyuk's relationship with Kim Dokja and helps distinguish him from the Secretive Plotter even when their faces and many memories coincide. In the Final Scenario, synchronization with deep regression history grants extraordinary force, but it is not proof of a permanent personal skill at that level. Stories can be damaged, exhausted, or separated, and they cannot guarantee a desired ending. Most of Yoo Joonghyuk's stories are badly mangled by the Dark Stratum, yet the company's Giant Stories still answer the final collective movement toward Kim Dokja's hospital. (Chapters 448, 465, 549, 551)

Cloud System and emergent writer attribute

After Regression disappears, Han Sooyoung becomes Yoo Joonghyuk's constellation sponsor and grants him Cloud System for the manuscript mission. The Stigma links them across distant world-lines, delivers updated files, and allows the text to be transmitted to local writers. With Biyoo modifying the local cloud infrastructure, those intermediaries can continue serialization after the Ark departs. The arrangement reverses the usual logic of sponsorship: Yoo Joonghyuk accepts a nominally less powerful sponsor because her exact story-distribution ability is more valuable than another combat enhancement. (Chapters 547, 549)

A writing-related attribute later awakens and lets him revise the manuscript. He uses it as an exacting factual editor, removing invented sword techniques and correcting events that do not match his memory, while communicating with Han Sooyoung through the evolving file. Editing established content consumes substantial Probability, the connection can fail as the system weakens, and no transmission can compel a reader to imagine the desired conclusion. Nevertheless, by the time he returns, the manuscript has reached every world-line accessible to the Ark and real-time links allow the distributed serializations to continue without his permanent presence. (Chapters 549–551)

Power progression

Relationships

• Kim Dokja: Their relationship moves from the bridge's coercive test to an equal, antagonistic companionship in which each repeatedly exposes the other's desire to die for a plan. Kim Dokja changes futures Yoo Joonghyuk regarded as fixed, while Yoo Joonghyuk refuses to treat a replacement in another world-line as the same person. The zero turn reveals Kim Dokja as the sponsor who created Regression and the person that earlier Yoo Joonghyuk hoped to meet, but the familiar Yoo Joonghyuk remembers that history only in fragments. His final manuscript voyage reverses their original roles: the protagonist crosses worlds so that his reader may encounter the company's story and find a route home. (Chapters 11, 103, 178–189, 448, 525, 527, 547–551)

• Han Sooyoung: Han Sooyoung is a distrusted prophet, abrasive strategic equal, and eventually the collaborator Yoo Joonghyuk asks for when he can no longer solve loss alone. They test Group Regression together, and after his original sponsor and Stigma disappear, he accepts her sponsorship to gain Cloud System. Their closeness is expressed through plans, insults, and factual disputes more than sentiment: she writes the manuscript, he corrects its inaccuracies across world-lines, and he refuses to invent a happy conclusion she did not actually write. (Chapters 312, 386, 522, 547, 550–551)

• Lee Jihye: Yoo Joonghyuk rescues Lee Jihye early and gives her the discipline and martial identity of his disciple. His training is severe enough to become a source of fear and comedy, but the relationship is not merely instructional; he protects and carries her on large battlefields and trusts her to grow into an independent swordswoman. Before the Ark voyage, Lee Jihye avoids saying a final goodbye because treating the departure as permanent would betray her expectation that her master will return. (Chapters 33, 46, 407, 547)

• Lee Seolhwa: His memory of Lee Seolhwa as a second-turn lover motivates his urgency to save the present woman from the Disaster of Questions, but he describes wanting her as a companion rather than claiming an old romance as hers. She later becomes the physician who treats injuries he once might have escaped through Regression. The zero-turn Yoo Joonghyuk eventually marries that world-line's Lee Seolhwa after the scenarios; this is a separate completed life and not confirmation of the familiar Yoo Joonghyuk's current romantic future. (Chapters 82–84, 276, 524)

• Yoo Mia: Yoo Mia's safety motivates Yoo Joonghyuk's attempt to dominate Seoul's kings and repeatedly complicates his claim to value only scenario efficiency. After the scenarios he cooks for her and tries to exclude her from dangerous choices, but her training and insistence on honesty force him to recognize her agency. He kneels to explain the group-regression risk and accepts her participation; before departing in the Ark, he promises that he will not abandon her and asks Han Sooyoung to protect her while he is gone. (Chapters 71, 455, 529, 547)

• Shin Yoosung / Biyoo: The 41st-turn Shin Yoosung returns as the Disaster of Floods and confronts Yoo Joonghyuk with the suffering of a companion sent into another future. Biyoo is connected to that history without being reducible to the same identity. Yoo Joonghyuk later rescues and protects her, and she in turn saves him in the Dark Stratum and joins the manuscript voyage. Their discussion of a 41st-turn promise to travel after the scenarios acknowledges an inherited injury while admitting that an apology cannot make present people identical to their past counterparts. (Chapters 103, 148, 256, 549–550)

• Breaking the Sky Sword Saint: The Sword Saint is Yoo Joonghyuk's master from his First Murim histories and the source of both his principal martial lineage and one of the clearest judgments of his emotional development. He risks Mirror Eyes to prove his identity to her, and she recognizes the changed disciple who has finally found a first friend. When she remains behind against destruction, her final insistence that he is not alone turns her death into a lesson he must carry through the same life rather than erase through Regression. (Chapters 232–233, 249)

• Secretive Plotter: The Plotter is the original Yoo Joonghyuk who completed the long sequence of regressions and became an Outer God, not simply a later action-state of the familiar man. Their confrontation shows that shared name, appearance, and overlapping memory are insufficient to make one person: the familiar Yoo Joonghyuk possesses stories formed with this company that the Plotter lacks. The Plotter's separation and decision to save the child Oldest Dream are his own conclusion; the familiar Yoo Joonghyuk survives that choice and continues another life. (Chapters 419, 448, 454, 514–515)

• Kim Dokja's Company: Yoo Joonghyuk first evaluates many members as scenario pieces connected through Kim Dokja, but their relationship widens into practical collective responsibility. After Kim Dokja's 73rd Demon King death, he asks the survivors not to abandon the current life; later he commands them through wars, trains them for Group Regression, and attempts to cross the Final Wall with companions rather than accept a route designed for one protagonist. His return from the manuscript voyage is likewise communal: he supports Han Sooyoung and approaches the hospital room as one member of the gathered company. (Chapters 189, 407–408, 505, 528–529, 551)

Items

• Black Heavenly Demon Sword: A major late-story sword connected to the Black Demon Spirit legacy of the First Murim. Yoo Joonghyuk uses it as part of his mature Breaking the Sky arsenal rather than as the source of his underlying swordsmanship.
• Absolute Throne: The throne offers authority over Seoul but would bind a regressor through its controlling contract. Yoo Joonghyuk seeks control during the early king scenario partly to recover Yoo Mia, but Kim Dokja defeats him and destroys the throne before he can use domination as the route's answer.
• Splitting the Sky Sword: His SS-grade weapon for Breaking the Sky techniques. It is broken during the Disaster of Floods conflict; a counterpart associated with the Secretive Plotter should not be treated as continuous ownership by the familiar Yoo Joonghyuk.
• Final Ark: The replica vessel Yoo Joonghyuk obtains from the Scenario Museum and pilots through reachable world-lines. It carries him, Biyoo, and Han Sooyoung's manuscript on the effort to reach reincarnated fragments of Kim Dokja.
• Infinite Dimension Space Coat: The long black coat associated with Yoo Joonghyuk's regressor line and recognizable silhouette. Its spatial storage and durability support his combat equipment, while its color visually contrasts with Kim Dokja's white counterpart.
• Six-man Card: A participation item he activates on Han Sooyoung so that she can enter a special scenario as one of the registered members. Its importance lies in scenario eligibility rather than permanent enhancement.
• Demon King's Jade: Yoo Joonghyuk briefly takes the jade intending to assume the demon-king burden and protect the group. Yoo Sangah intercepts the plan, making the item another point where his self-sacrificial choice is redirected by a companion.