Martial King

The Martial King, whose name is Nayu, is the king who leads the One-horned tribe into a new golden age and becomes the foremost martial artist among the Tower's players. Beneath his indolent, boastful manner is an exacting teacher and ruler who treats combat as a means of discovering a person's path. His final battle turns his own death into a lesson for Yeon-woo and Nocturne, while his later restoration gives him a new chance to live beside the family and disciple who refused to forget him.

Biography

Nayu and the Golden Age

Nayu wins the One-horned throne after defeating rival candidates, then suppresses a rebellion by a defeated faction. The conflict kills many tribe members and leaves consequences that later enemies exploit, but his reign nevertheless begins a new golden age. He treats kingship less as ceremony than as responsibility for a community of proud warriors: the village remains politically neutral, its people live with unusual equality, and even their teasing familiarity with their chief rests on confidence that he will stand at the front when danger arrives. (Chapters 93–96, 604–607, 621)

His pursuit of martial perfection produces both triumphs and failures as a teacher. Faceless, his first disciple, is eventually excommunicated, while Nocturne begins as data copied from Allforone and is raised in the hope that he can become a weapon against the original. Nayu hides that origin and focuses too much on the result, leaving Nocturne to experience the relationship as manipulation. The Martial King's reputation grows until even the Summer Queen avoids a direct clash, yet Allforone remains the one opponent he cannot pass and the unresolved fixation inherited by his younger simulation in the Shadow Dojo. (Chapters 103–104, 183–186, 607–623)

The Outsider Chosen as a Disciple

When Yeon-woo arrives at the One-horned village, Nayu immediately recognizes both his unusual sight and his refusal to be tied to one place. He jokes about marrying Yeon-woo to Edora, but his more serious interest is whether the outsider can become the Yin Sword candidate his own people need. Rather than give away the tribe's Mugong, he demands that Yeon-woo create a new internal cultivation method in four days, simultaneously testing the young man's adaptability and Edora's judgment as a future Psychic Medium. (Chapters 93–103)

Yeon-woo completes the test by building Heaven Wing Mana Control, and Nayu accepts him as his third successful student. He teaches the Eight Extreme Fists one movement at a time, explaining Mugong through the union of magic, body, and the connection that releases their power. His methods are deliberately severe: during the attack on Kuram, he makes Yeon-woo fight captured Red Dragon elites in succession because a lesson conducted without mortal pressure would not reproduce war. The risk nearly kills his disciple, but it also exposes the focal points and sixth sense Yeon-woo must develop, establishing Nayu as both a wall to surpass and the first teacher able to redirect Yeon-woo's relentless growth. (Chapters 103–121)

A Teacher Whose Shadow Reaches Forward

Nayu does not try to turn Yeon-woo into a copy of himself. After the initial war, his influence is carried by techniques, occasional instruction, and the standard he represents rather than constant supervision. On the twenty-first floor, a much younger simulation of him has trained for decades beyond its recorded state and developed an obsessive wish to defeat Allforone. Yeon-woo recognizes that fixation as a distortion of the living man he knows, defeats the shadow by changing among several martial foundations, and begins seeking a distinct path instead of mistaking mastery of the Eight Extreme Fists for an identity. (Chapters 121, 183–186)

The Martial King's strength also makes him a strategic pressure even when he remains in the village. Gods, demons, rankers, and the Nine Kings measure other fighters against him, while enemies who cannot attack Yeon-woo directly decide that killing his teacher will cause the deeper wound. Faceless assembles White Dragon remnants, the Daud Brethren, Asgardian support, and Nocturne around that calculation. Their plan therefore turns Nayu's bonds into a vulnerability: his life is targeted not for a throne or artifact, but because Yeon-woo, Phante, Edora, and the tribe will suffer if their apparently immovable center falls. (Chapters 387, 395–396, 482–503, 604–615)

Faceless, Nocturne, and the Final Lesson

Faceless returns to the village under the cover of a formal challenge and uses buried tribal resentment to widen the breach. Nayu initially treats the confrontation as welcome entertainment, confident that no ordinary challenger can threaten him, but the operation surrounds the village with descending gods and turns former students into its decisive weapons. When Nocturne confronts him using Allforone's light and martial principles learned from Nayu himself, Gaia's Curse and the system-backed restoration of Nocturne's body leave the Martial King unable to win through his existing mortal state. (Chapters 604–619)

Nayu chooses exuviation and immediately rises past an ordinary transcendent trajectory toward emperor level. He prevents Yeon-woo from interfering because the duel is also his responsibility as a teacher: he apologizes for concealing Nocturne's origin, severs the system code sustaining his former student, and affirms that Nocturne's lived memories make him a person rather than a disposable copy. The uncontrolled ascent disintegrates Nayu's own existence, but before vanishing he makes Yeon-woo observe the principles required to challenge Allforone. His death consequently becomes a final inheritance, while his recognition allows Nocturne to stop defining himself through either Allforone or resentment of his master. (Chapters 619–623)

A Restored Teacher and a New Family

After the principal war, Yeon-woo rewinds the wheel to a time before the assassination. The restored Nayu recognizes the future Phante and the transformed Yeon-woo without needing a full explanation, thanks them for returning, and welcomes them with the only reunion he considers honest—a fight. Yeon-woo then reconstructs him from the Shadow Dojo's recorded personality, traces left in Idea, and data gathered from his original existence. Nayu is shaken to learn that this body is a compiled vestige, but his wife insists that the person who laughs, argues, and lives beside her is still her husband. (Chapters 812–816, 823–825)

Fighting Yeon-woo lets Nayu confront that uncertainty through the language he trusts. The disciple finally surpasses him with the Eight Extremes of Sword Thunder and reveals the Bright Tai Chi Pangu Sword principle Nayu pursued throughout his life. Nayu's light stabilizes him as a Star, securing his current identity, although Yeon-woo must still gather soul fragments copied into other world lines to make the restoration complete. By the latest chapters, Nayu remains with the tribe, participates in Edora and Yeon-woo's wedding preparations, and treats his former disciple as both a worthy opponent and a new son. (Chapters 820–826, 841–862)

Appearance and personality

Nayu appears as a very large, middle-aged member of the One-horned tribe whose plain clothes are often stained from fieldwork. His relaxed posture and farmer-like presentation conceal an oppressive fighting spirit that Yeon-woo perceives as a dormant wild beast and a presence as broad as the sky. His preferred weapons are his own large, callused hands, which he regards as the record of every technique, enemy, and achievement that made his path. His restored form looks the same, even after its light becomes stable enough to establish him as a Star. (Chapters 93–94, 104–106, 814, 824–825)

The Martial King is boastful, mischievous, confrontational, and apparently irresponsible, often sleeping through meetings or provoking fights for amusement. Those habits coexist with a precise awareness of his people and students. He refuses to hide war's danger from Edora, recognizes Yeon-woo's talents without trying to confine him, and accepts his own death when it can resolve his responsibility toward Nocturne and leave Yeon-woo a usable lesson. His pride makes apologies difficult, but when he finally acknowledges wrongdoing, he prioritizes his student's identity over victory. (Chapters 93–109, 604–623, 814–825)

Abilities and powers

Eight Extreme Fists and the Eight Writings of Divination

Nayu created the Eight Extreme Fists as a universal Mugong rather than a literal unarmed style. It joins the eight compass directions and Eight Trigrams, coordinates magic, body, and technique, and can be used through fists, swords, spears, or other weapons. Its steps increase the force of the trigrams, protect blind spots, and let the practitioner focus the battlefield's “extremes” upon the self whether facing one opponent or an army. The Eight Writings of Divination are its decisive principles; Break Heaven, reinforced by Pagong, can split an artificial sun or erase a wide battlefield with a hand movement. (Chapters 103–106, 121, 183–185)

The style's depth comes from choices rather than fixed combinations. At higher mastery, focal points present multiple real possibilities for a movement and allow the user to change among them according to the situation. This requires an exceptionally refined sixth sense; choosing poorly can confuse the user's own processing, and a beginner cannot reproduce Nayu's flexible application merely by memorizing steps. His younger simulation improves the style for decades but remains limited by the recorded body's attributes, while Nayu's later living use can evade, parry, and counter transcendent attacks without a weapon. (Chapters 108–109, 184–185, 619–623)

The Walking Archive and martial perception

Before becoming known as the Martial King, Nayu was called the Walking Archive because he learned and mastered an extraordinary range of Mugong. He can identify the constituent traditions in Yeon-woo's newly created Mana Control after one observation, find corrections intuitively, and read Nocturne's derivative martial arts closely enough to attack their structural foundation. This breadth does not make every explanation easy—he often describes insights as simply feeling correct—but it allows him to translate principles across styles and teach students who follow paths unlike his own. (Chapters 99–105, 619–623)

His body is the vessel for that knowledge. Nayu can condense air into city-breaking blows, control vast magic without an external artifact, collapse space and everything defined inside it, and fight through injuries aggravated by Gaia's Curse. These feats still have costs: the early Break Heaven demonstration tears muscles in his arm, the curse disrupts his energy during the Nocturne duel, and even his cultivated body cannot safely contain the sudden emperor-level expansion that follows transcendence. His direct, hand-to-hand preference is therefore a philosophy of ownership, not proof that exertion or damage no longer matters. (Chapters 104–106, 619–623, 824)

Exuviation, holy territory, and emperor-level ascent

Nayu has accumulated enough legends to exuviate and transcend before the assassination, but deliberately postpones doing so. Ascension would draw Allforone's intervention, while incomplete understanding of the Yin Sword would still leave him unable to cut the divinity behind that wall. When Nocturne and Gaia's Curse make delay impossible, his exuviation exceeds the scale of ordinary transcendence, establishes a great holy territory, lets him affect laws and system code, and briefly brings his existence to emperor level. (Chapters 619–622)

That breakthrough is fatally unstable. Nayu's spirit expands faster than his form can contain, so the light that grants authority also disintegrates his body and eventually fragments his soul. The later reconstruction avoids immediate disappearance by stabilizing him as a Star and imprinting his identity into Idea, but it does not automatically restore the original soul. Yeon-woo must gather compatible fragments from divided world lines, and the corpus leaves that recovery in progress rather than presenting his latest state as unconditional resurrection. (Chapters 620–623, 816, 823–826)

Bright Tai Chi Pangu Sword

The Bright Tai Chi Pangu Sword descends from the ancestor Shaohao Jintian and is intended to break the divine superstructure that sustains Allforone. Tai Chi recognizes paired properties—life and death, light and darkness, positive and negative—as opposite yet inseparable parts of a cycle; Bright Pangu is the act of untangling oneself from that cycle and cutting beyond it. Nayu seeks the Yin Sword as the missing complement to his people's natural foundation and chooses Yeon-woo as its inheritor. (Chapters 99–103, 620)

The One-horned tribe's own blessing is also the obstacle: its nature prevents Nayu from truly realizing the Yin Sword, so strength and study alone cannot complete the technique. He entrusts Yeon-woo with observing Nocturne and refuses to let him exuviate before grasping the missing principle. Nayu dies without completing the sword, but after restoration he witnesses Yeon-woo use it through the Eighth Extreme of Sword Thunder and receives its truth as a seed. The latest source establishes possibility and insight, not confirmed permanent mastery by Nayu. (Chapters 620–623, 823–825)

Power progression

Relationships

• Yeon-woo: Nayu's final and most consequential disciple. He tests Yeon-woo harshly, gives him the Eight Extreme Fists and Yin Sword inheritance, and makes his own death a final lesson; Yeon-woo later reconstructs him and becomes his son-in-law. (Chapters 93–121, 604–623, 812–862)
• Edora: His daughter and the tribe's future Psychic Medium. Nayu teases her about Yeon-woo but also tests her judgment and respects the responsibilities imposed by her Insight. (Chapters 93–103, 604–629, 812–862)
• Phante: His son, challenger, and successor as tribal king after Nayu's death. Their constant fighting masks mutual pride, and the future Phante returns through the wheel partly to confront the father whose shadow shaped his reign. (Chapters 17, 93–121, 604–629, 812–825)
• Nocturne: A former student whom Nayu trains without revealing his origin as Allforone's discarded data. Their final duel lets Nayu apologize, free Nocturne from system control, and affirm his independent personhood. (Chapters 607–623)
• Allforone: The wall Nayu never defeats directly and the reason he pursues the Bright Tai Chi Pangu Sword. His unresolved rivalry shapes his students and his decision to delay transcendence. (Chapters 184–186, 395–396, 619–623)
• Shanon: A Red Dragon commander Nayu selects as a lethal test for Yeon-woo. Shanon's decision to die for his subordinates validates the test's human consequence, and his later life as Yeon-woo's knight makes him part of Nayu's extended martial family. (Chapters 106–109, 603–604)

Items

No qualifying notable item is established for the Martial King in the supplied corpus; his hands are consistently presented as his preferred weapons.