Yihi

Yihi is Randalph Brigsiel's assigned companion fairy, the steward of his Korean dungeon, and eventually a living core and qualified ruler of the fairies. Her improvised care repeatedly turns errors into sources of growth. In the final battle she restores a fragment of the collapsed system and dies protecting Randalph, then reappears as a fairy seed that he chooses to guard until she can be born again.

Biography

A companion given a second promise

Yihi materializes from the Dungeon Core as a palm-sized guide with no knowledge of Randalph's first life. To her, explaining the system, opening the store, and advising a new Dungeon Master are ordinary duties. To Randalph, her return is the recovery of the fairy who once served him without reward and died after he tried to solve everything alone. His private oath never to lose her again therefore changes the relationship before she understands it, giving her mistakes and affection room to become something more than programmed assistance. (Chapters 2–4)

Her first years are defined by energetic, imperfect stewardship. Yihi monitors intruders, counts casualties, operates Domestic Mode, delegates construction to dwarves, and guides the newly purchased dark elves. She also spends effort on a secret garden, bees, and structures whose designs bewilder her master. These projects are selfish pleasures, but they make the dungeon an inhabited ecosystem; even her advice to Chrisley and Krasla teaches them how to bargain directly with Randalph and earn a secure position rather than wait passively for mercy. (Chapters 21–37)

Yihi fears punishment when Randalph's uncontrolled use of Wrath devastates the top floor, yet she remains beside him and tends him afterward. Randalph rewards her with flowers and a king bee instead of discarding her hobbies, and she grants him a fairy's blessing that permits distant communication. By the time the Tree of Origin takes root, she is no longer merely relaying menus: Randalph trusts her knowledge of his condition and routinely leaves her with Chrisley to preserve the dungeon during his absences. (Chapters 33–37 and 72–80)

Origin Fairy and knight of the dungeon

The growing Tree of Origin expands Yihi's responsibilities and exposes her empathy. She buries a fallen angel near its roots because she believes the tree sent him, an impulsive act that later moves Tashmal, then still known as Hashmal, and gives the other dead angels a meaningful resting place. When uncontrolled reproduction overwhelms the core, Yihi weakens until her identity is in danger of dissolving. Lee Sarang mediates a resonance that lets the tree recognize Yihi as its soul companion, promoting her into an Origin Fairy and restoring the dungeon's balance. (Chapters 87–106)

Promotion gives Yihi direct communion with the tree, control of its roots, and the ability to draw out healing leaves and a yearly essence. Her curiosity still carries risk: she pierces Infinite Flesh with a sharp root to uncover what it hides, accidentally fusing the creature and root into the material that becomes the Infinity Armour. The accident produces a powerful defense for Randalph, but its violent activation threatens the tree and reinforces a recurring lesson—Yihi's creativity can solve problems no strategist anticipated, yet it needs judgment and stronger supervision. (Chapters 106–113)

Randalph judges her qualified to take the Fairy Knight's Sword, which pulls her into an examination world without his protection. Frightened and unable to fly, Yihi nevertheless learns to use the blade, accepts responsibility for threatened inhabitants, and returns with the knight's crown and shield. She mistakenly uses the crown to send a corrupted Randalph away, enabling a ruinous invasion. Her guilt makes her refuse evacuation: she sustains the failing core, fights beside wounded defenders, and insists on holding the path until Randalph returns, transforming remorse into a deliberate act of guardianship. (Chapters 122–141)

Soul crisis and the path to fairy rule

After the invasion, Yihi becomes more careful about reports, resources, and care for the wounded, but the cost of sustaining both dungeon and tree accumulates unseen. Her soul suddenly begins to deplete, her body fades, and ordinary magic, the core, and available stores cannot restore her. Nearly one hundred thousand fire spirits fill her abandoned duties because they sense Randalph's grief. Their shared effort slowly repairs her soul; when she wakes, she has four wings, the tree awakens with her, and the dungeon rises to a unique rank. (Chapters 141–174)

The recovered Yihi gains origin magic and can summon temporary giants from the tree's roots, but the effort exhausts her within minutes. Light powder from her wings begins harmonizing with her surroundings, a sign that she may become the first fairy ruler in millennia. She also breaks an old restriction by leaving the dungeon. On Earth she escorts the griffin, Gigantes, and the hydra, secretly plants a forest filled with bees, and turns what looks like another prank into an unpredictable landmark Randalph can exploit against an enemy who reads planned actions. (Chapters 174–180)

Her wider freedom does not end her administrative role. Yihi carries messages across long distances, relays orders, guides visitors, allocates resources, and temporarily impersonates Randalph so rival grand dukes do not discover his absence. Ariel Diablo tells her that a fairy ruler can leave an unequal core contract and create the world fairies lack, but Yihi does not treat freedom as separation. When her crown becomes a possible road back to the Demon World, her power remains defined by where people and beings truly belong rather than by unrestricted travel. (Chapters 194–215)

The living core's final choice

Once Randalph becomes Demon King, Yihi is fully qualified to leave the Dungeon Core and begin creating a Fairy World. Instead, unease draws her into the Demon World after him. She cannot explain the warning as foresight and jokingly calls her arrival the power of love, but her decision is clear: she postpones a mission desired by all fairies so she can support Randalph's coalition through the final war. He permits her to remain and entrusts her with supplies, reports, and the castle's defense. (Chapters 229–241)

Death Bringer's power later traps Randalph in darkness, cuts their soul connection, and leaves him unable to spend the statistics needed to survive because the system has collapsed. Yihi intervenes as a living core, reaches through the isolation, and tells him to touch her. Their contact restores only a minute fraction of the system, but it is enough to recover his status window and create a defense. Death Bringer then pierces her spiritual body; Yihi asks whether she did well and disappears after making victory possible. (Chapter 241)

The epilogue overturns the apparent finality of her death. The Korean core shines again, leading Randalph to a small pond where God's Eyes reveals an unbloomed fairy seed. He names it Yihi, declares that she will become queen of the fairies, and orders the Demon King's castle moved beside the pond. Because the seed cannot survive if removed and may need millennia to bloom, Yihi's latest state is neither ordinary life nor destruction: she is reborn potential, protected by the master who once failed to protect her. (Chapter 242)

Appearance and personality

Yihi first appears as a translucent, palm-sized fairy with emerald hair, bright lantern-like eyes, pink lips, small wings, and a cute, youthful body. Her promotion slightly lengthens her limbs, hair, and wings while leaving her recognizably childlike. After the soul crisis, two wings become four and her body grows again; light powder begins falling from her wings when she flies. She sometimes equips a gold crown, jeweled shield, tiny sword, helmet, or a self-chosen maid outfit. (Chapters 2–4, 106, 129, 141, 163, and 174–175)

She is talkative, easily distracted, vain about being pretty, fond of sleeping, and passionately attached to flowers, bees, honey water, and strange construction. Her fear of being abandoned or punished can make her hide mistakes, but she is also observant, resourceful, and unwaveringly loyal. Repeated crises add responsibility without erasing her spontaneity: the same fairy who teases Gigantes and makes improbable gardens can maintain a collapsing dungeon, admit fault, and risk permanent destruction for Randalph. (Chapters 2–4, 25–37, 90–93, 141–175, and 241)

Abilities and powers

Yihi's capabilities develop from the limited administrative functions of a companion fairy into origin magic, fairy-knight authority, freedom outside the dungeon, and direct access to the system through her status as a living core. Her powers remain relational: they depend on her bond to Randalph, the core, the tree, or the offices of knight and ruler rather than on an independently explained reserve of combat magic.

Core relay, blessing, and administration

Yihi begins as an insubstantial power relay generated by the Dungeon Core. She can open system stores, display Domestic Mode, scan the dungeon, authorize environmental construction, delegate that authority, use internal movement circles, and communicate dungeon information to its master. The core supplies enough force for her spiritual body to touch objects, but initially binds her inside the dungeon; weakening either dungeon functions or the core can make her body fade and threaten the ego that distinguishes her from the relay itself. (Chapters 2–4, 21–26, 33–37, and 104–106)

Her fairy's blessing establishes a soul-linked communication channel with Randalph over great distances. It lets her receive orders and report emergencies, but separation into another world or powers that sever the soul link can block it. Later growth permits her to leave the dungeon and carry creatures outside, while becoming a qualified fairy ruler should allow her to abandon the core's constraints altogether. She voluntarily continues the bond, so that theoretical freedom does not become a demonstrated permanent separation. (Chapters 25–26, 130–141, 178–180, 197–199, 207–215, and 238)

At the end Yihi identifies herself as a living core and therefore part of the system. Physical contact restores only 0.001 percent of the crashed system—far too little for a general recovery—but selectively brings back Randalph's status window, allowing him to allocate saved statistics and create Aegis Shield. The intervention works despite Death Bringer's isolation space, yet it exposes Yihi directly to a god who can destroy spirits, making the ability a decisive link rather than a safe or repeatable system repair. (Chapter 241)

Origin communion and creation

Yihi becomes an Origin Fairy when the Tree of Origin accepts her as a soul companion. Her magic power through the core lets her regulate the tree's otherwise destructive growth, communicate with it, strengthen or shape roots, increase its leaves, and collect products such as healing foliage and the yearly Essence of Origin. The bond is conditional: the system states that she will revert if the tree disappears, while supporting both tree and dungeon over years can deplete her soul. (Chapters 104–106, 170–174)

After recovery, origin magic lets her extend roots throughout the dungeon and weave them into Origin Giants. The constructs are temporary; their strength and duration scale with the Origin Fairy, they require the tree's roots to be present, and summoning three at once leaves Yihi exhausted after roughly one or two minutes. Her upgraded soul also strengthens the tree, accelerates spirits' growth, and raises the dungeon, showing that her communion is both a combat resource and an ecological system. (Chapters 174–175)

Her origin-linked influence later manifests as harmonizing powder and life blooming along her route. The corpus treats these signs as evidence that she can become a fairy ruler, not proof that every implied power is already mastered. Once fully qualified, her office carries an obligation and capacity to create a Fairy World where otherwise worldless fairies can live. Yihi postpones that creation, and her death and rebirth as a seed leave its completion to a future emergence. (Chapters 175, 207, 238, and 241–242)

Fairy-knight regalia

The Fairy Knight's Sword tests Yihi in a sealed world, where she must act without flight or Randalph's directions. The sword can pierce or drive away evil, while the accompanying shield reveals evil and projects a beam of light. The artifacts give a small fairy meaningful combat force rather than invulnerability: Yihi remains frightened, comparable enemies can pressure her, and the shield's brief interruption of Contegonom matters chiefly because it creates an opening for Randalph. (Chapters 122–123, 129, and 141)

The knight's crown returns a being judged evil to its original place. Its previous holder warns that the effect is dangerous and should be reserved for necessity. Yihi first misidentifies a corrupted Randalph as an enemy and sends him away, proving that the destination can be catastrophic even when the displacement works. She later considers the crown a route for returning beings to the Demon World, but the corpus does not demonstrate unrestricted destination choice or ordinary teleportation independent of the artifact's moral condition. (Chapters 129 and 208–215)

Stewardship and improvisation

Yihi's most persistent noncombat strength is operational knowledge of the dungeon. She tracks points and intruders, learns languages through scans, assigns creatures and workers, relays orders, manages supplies, and notices information that Randalph cannot receive while away. Her judgment is inconsistent—she conceals discoveries, becomes absorbed in hobbies, and can misunderstand urgency—but repeated responsibility makes her a more reliable reporter and caretaker without turning her into a conventional strategist. (Chapters 21–37, 72–80, 141–151, 163–175, and 194–215)

Her improvisation creates both hazards and exceptional gains. Gardens, bee colonies, burial beneath the tree, the accidental fusion that produces the Infinity Armour, and the sudden forest on Earth all begin outside Randalph's plans. Their value comes from exploiting relationships and environments an opponent cannot predict, not from flawless design. When a task demands exact secrecy or tactical calculation, she still needs instructions from Randalph, Chrisley, or Oswen. (Chapters 25–37, 87–93, 110–113, 175–180, and 210–211)

Power progression

Relationships

• Randalph Brigsiel: Her assigned Dungeon Master becomes the person she chooses over contractual freedom; she restores his system access, dies for him, and is ultimately named and protected by him again.
• Chrisley: Chrisley shares dungeon stewardship with Yihi, interprets problems that exceed her knowledge, and defends the tree and core alongside her.
• Krasla: Yihi first guides and supervises him as a purchased dark elf, then fights beside him and mourns when he dies defending the route to the tree.
• Tashmal: Yihi's burial of an angel begins to alter Tashmal's view of the dungeon; later the fallen angel helps explain Yihi's promotion and protects their shared home.
• Oswen: The blacksmith supplies technical judgment and helps Yihi impersonate Randalph when his absence must be concealed.
• Ariel Diablo: Ariel recognizes Yihi's potential as a fairy ruler and confronts her with the possibility that loyalty to Randalph is a choice rather than an obligation.
• Rei and Sera: These spirits help lead the collective effort that repairs Yihi's depleted soul, allowing her return with stronger origin powers.
• Gigantes: Yihi commands and teases the giant as one of the dungeon's principal defenders, relying on him when she first ventures onto Earth.

Items

• Dungeon Core: Her original source, administrative anchor, and continuing route into the system.
• Tree of Origin: Her soul companion and the source of her Origin Fairy promotion, communion, and origin magic.
• Infinity Armour: Living armor accidentally created through Yihi's experiment with Infinite Flesh and an origin root.
• Fairy Knight's Sword: The blade that tests and recognizes her, accompanied by the fairy knight's shield and crown.