Yiyu

Yiyu, full name Jung Yiyu, is Crockta's younger sister in his life as Jung Ian. Her request that Ian join Elder Lord first brings him into the game, while the danger she encounters there gives his protective instinct an immediate target. The supplied corpus never shows Yiyu learning that the celebrated orc is her brother, but her growing independence and later management of Café Reason challenge Ian's belief that protecting her must require sacrificing his own life.

Biography

Orcrox and the Warrior’s Laws

Yiyu is introduced as a cheerful university student who habitually visits Café Reason and refuses to be intimidated by Ian's dry teasing. Their closeness has been rebuilt only recently: after their parents died, Ian spent seven years serving overseas while Yiyu lived with relatives; during that time, he sent money home and paid her tuition. She grew from the child who followed him into an adult during that separation. A later revelation complicates the family history further—Yiyu learned at her relatives' house that she and Ian are not biologically related—but she does not treat that fact as weakening their bond, and Ian's devotion remains unchanged. Ian's life has instead been organized around their father's command that he protect her, while Yiyu has learned to trust that he will somehow solve whatever reaches her. (Chapters 2, 9, 26, 52, 112, and 216)

Yiyu begins Elder Lord before Ian and asks him to join because she is struggling. She has selected an elf mystic, but her assimilation rate is only about ten percent, and she is enough of a novice to die after a rabbit bites her legs until she bleeds out. She nonetheless boasts to her friends that her combat-experienced brother will become a ranker and help her catch up. Ian initially refuses because virtual violence recalls his battlefield past, then changes his mind after overhearing women discuss harassment inside the game. He enters to protect Yiyu, while she knows only that he has finally started and refuses to reveal his species or level. Her expectation therefore initiates Crockta's story without giving her knowledge of the orc identity or control over the path he chooses. (Chapters 2–5 and 13)

The siblings' early Earth conflicts show why Ian's protection is both reassuring and restrictive. When a senior's remarks about Yiyu lead Park Jungtae into a fight, she calls Ian from the police station and explains that she had ignored the flirting until the two men struck each other. She can laugh about receiving men's phone numbers and does not present herself as helpless, but she still yields when Ian tells her to return to class and let him handle the guardians. Her compliance rests on experience: he found things she lost, ended childhood bullying, dealt with their inherited debt, and funded her education. Ian resolves the police-station dispute through connections after she leaves, preserving the pattern in which Yiyu sees the problem disappear but not the severity of what he does behind her. (Chapters 9–10)

Yiyu also becomes an unwitting spectator to Ian's second life. She admires Laney's footage of an orc defeating user hunters, briefly considers changing species, and later tells Yoon Bora that the same orc looks cool and manly while Ian sits beside them trying not to reveal himself. These scenes establish a durable separation: Yiyu follows Crockta as a public figure but evaluates him as an NPC, while Ian's wish to surprise her becomes a secret he must continually manage. At home and in the café, she remains the person whose ordinary presence anchors him to Earth; when his life as Crockta grows more absorbing, time with Yiyu and Café Reason represents the peaceful routine he believes he returned from war to preserve. (Chapters 13, 18, and 26)

Quantes and the Road North

Before Crockta travels to Quantes and the north, Ian finally reaches the elf starting region to address the reason he originally entered the game. Yiyu has already quit. While shearing sheep alone with her spirits, she had refused repeated offers from three high-level users to raise her level; they became angry, chased her like prey, overwhelmed the spirits that tried to defend her, and tied her up. Her low assimilation rate limited the physical pain, but the pursuit frightened her, and seeing the spirits—whom she calls her “kids”—driven back to the spirit world upset her enough that she no longer wanted to play. She apologizes for persuading Ian to start and asks him to remain a café owner instead of continuing with such a harsh game. (Chapter 52)

Yiyu tells Ian where the attack happened and describes the perpetrators, but she does not ask him to hunt them or know that he travels there as Crockta. Ian interprets retaliation as his duty and, with Stella's help, captures the men. Rather than simply killing them, he forces them through encounters intended to restore their empathy. They go on to create the Rehabilitation Brotherhood, build homes, assist vulnerable residents, and publicly apologize to the people they hurt. Yiyu later sees their interview and recognizes them, but she responds without renewed interest in them or the game. The consequence of her account is thus much larger than her own chosen action, and remains another secret example of Ian turning her hardship into a mission he assumes for himself. (Chapters 53–55 and 65)

As Crockta moves farther north, Yiyu's contribution is domestic rather than martial. She notices the length of Ian's connections and leaves a homemade tuna sandwich in the refrigerator with a note ordering the “game loser” to stop and eat. The gesture reverses their usual roles for a moment: the sister he believes he must continually watch is the one monitoring his basic welfare. Her university friendships and nights out also continue independently of him, although her low alcohol tolerance sometimes brings the old pattern back when Park Jungtae calls Ian to take her home. Her friends describe her as reserved until she becomes close to someone and sharp-tempered when provoked, in contrast to Ian's public gentleness. (Chapters 65 and 87)

Yiyu never follows Crockta north and does not resume Elder Lord. Her importance to Ian nevertheless makes her vulnerable in a different sense: the Demon’s Mouth attacks Crockta with an illusion in which Yiyu decays into a skeleton at Café Reason, using his fear of losing her to pull him toward despair. Yiyu does not experience that vision or know of it. Later, when the truth of Elder Lord unsettles Ian, hearing her return home pulls him back into awareness of Earth. He abruptly tells her not to start playing again without explaining why, treating ignorance as another form of safety. Ian considers abandoning Tiyo and Anor and choosing only Yiyu and Café Reason, but his later return to the northern conflict demonstrates the limit of that solution: the people he met in the other world have become real obligations too. Yiyu remains central to his decisions yet cannot make an informed choice about them because he continues to conceal both Crockta and the danger surrounding him. (Chapters 62 and 100)

The Northern Cities and Great Clan War

While Crockta fights through the north, Yiyu continues building an adult life on Earth. She worries about her course, employment, and whether she has found anything she genuinely wants to do. Ian advises her that happiness does not require becoming the best, offers the café as a fallback, and later even proposes buying her another café, but Yiyu resists a position created purely through family connections—especially when Han Yeori is already Café Reason's working manager. Her uncertainty is not idleness: she earns a TOEIC score above nine hundred after setting Ian a difficult target and later expects a scholarship. Her progress gives substance to her claim that she can manage without being sheltered, even though she is still preparing for a future whose exact form she has not chosen. (Chapters 52, 126, 151, and 201)

Her relationship with Ian during this period mixes affection with criticism of his absences. She feeds him, notices when the game has kept him away, and complains that it feels as though she has not seen him even when they share a home. She also pulls him back into ordinary sibling activities: after he wins a shooting-gallery prize, she takes the goblin doll he had pretended not to win for her, then questions him about the woman he had recently met. Such teasing can look dependent, but it also exposes how much of Ian's life remains opaque to her. He hides his ranker income, his new car, his investigations, and the psychological cost of Elder Lord, while she responds to what she can actually see—an older brother increasingly consumed by a game. (Chapters 126, 130, 143, and 151)

Yiyu continues to watch Crockta's public battles without recognizing Ian. When former players are encouraged to return, she briefly asks whether she should play again, but her friends point out that she is already pursuing her real-world goals and needs to prepare for graduation. She accepts that judgment. In later broadcasts she can laugh at the spectacle surrounding Crockta, yet she also reacts to the slaughter committed by the Heaven and Earth Clan as something cruel rather than dismissing it because the victims are NPCs. Asked whether Ian would watch such a massacre, she concludes that he would hate it. Her judgment is correct, but the concealed identity prevents her from realizing that he is already opposing it from inside the screen. (Chapters 154 and 163)

This separation protects Yiyu from immediate danger while leaving her unable to see how Ian's old responsibility toward her is widening. Ian repeatedly frames retirement from war as a return to Yiyu, then finds himself on battlefields because he cannot abandon others who depend on him. Yiyu is therefore neither a participant in the Great Clan War nor the source of its decisions; she is the family future Ian imagines when considering whether to withdraw. His thoughts of attending her graduation and remaining her guardian coexist with the realization that Tiyo, Anor, and Elder Lord's residents also matter. The tension does not lessen his love for her, but it makes the promise to protect her by avoiding danger increasingly impossible to keep. (Chapters 112, 123, 168, and 177)

The War of the Gods and the Grey God

Before leaving for the war at Orcrox, Ian tests Yiyu's confidence over a meal. She tells him she expects to receive a scholarship, insists that she did well even during the years he was absent, and says he should do what he wants instead of sacrificing himself because of her. She misreads his talk of leaving as a romantic trip rather than a potentially fatal battle, but the underlying answer is informed and direct: she does not want to serve as the reason he denies himself a life. Ian accepts that she is tougher than he has allowed himself to recognize, arranges in his own mind for Baek Hanho to protect her if he dies, and promises that the two siblings will travel together after he returns. (Chapter 201)

Yiyu then watches the opening battle with her friends and Stella. The group initially treats the broadcast as entertainment, but Crockta's killing intent and the realistic death of a broadcaster make his presence frightening even through a screen. Yiyu still does not identify the orc as Ian. This ignorance is consequential: Ian is fighting in part to preserve a future with her, while she can only observe the public “Crockta” and wait for the brother who has again become unavailable. The gap finally becomes dangerous when the connected users cannot log out and Ian's unmoving body remains inside his capsule. (Chapters 202 and 216)

During the crisis, Yiyu handles a government home visit calmly, listens to the arrangements keeping Ian's body alive, and accepts contact information for psychological support without collapsing in front of the official. Once alone, she relies on the faith Ian's past conduct has built: he has always returned with an answer, so she cannot bring herself to believe he will fail now. She searches his room and reads letters from former comrades thanking “Raven” for saving them, which shows her that his self-sacrifice extends far beyond their family. Remembering that they are not related by blood makes his devotion harder, not easier, for her to understand, and forces her to question why she has accepted it as natural. She decides to ask him directly when he returns. (Chapter 216)

At the final confrontation, Yiyu remains beside Ian's capsule on Earth. Crockta's vision of the line connecting worlds includes her walking around his apparently dead body, while Yeori waits at Café Reason; the people he might have treated as separate parts of his life are shown on the same continuum as the companions fighting beside him. Crockta defeats the Grey God, the trapped users return, and Ian survives. The narrative does not show Yiyu asking the question she prepared or Ian disclosing that he was Crockta, so the resolution of their conversation should not be assumed. One year later she is alive, preparing for job interviews, and described by Ian as otherwise unchanged. (Chapters 226 and 228)

The Great Monster Era

The dimensional breaches that follow Elder Lord turn Ian's hidden warrior life into an Earthly public duty. Yiyu does not receive a depicted awakening or join the hunters' battles. Instead, Ian again leaves for dangerous assignments, now as Raven, while she remains connected to the home and business he can no longer run consistently. The source does not show her reaction to his long deployments or explain what arrangements they make before he leaves. Her role in this era is therefore defined by the responsibilities she is later shown to have assumed, not by an invented combat power. (Chapters 228 and 234)

By the time Ian is deployed to Australia against Azi Dahaka, Yiyu operates Café Reason herself and the café is doing well. This is a concrete change from the student who rejected becoming an employee through family connections: necessity has made her responsible for the establishment, and she maintains it while Ian fights abroad. Ian imagines returning briefly, bringing her a gift, and recovering an ordinary day with the people he has left behind. The latest source-grounded account leaves Yiyu alive at the café while Ian crosses into another dimension with his reunited companions; it does not show whether she knows the full destination or when he will return. (Chapters 234 and 236)

Appearance and personality

The corpus does not provide a stable physical description of Yiyu's real-world appearance. In Elder Lord, she is an elf whose customization is attractive enough for her attackers to mock how much she must have spent on it, and she calls the character a “pretty and cute elf mystic.” Those statements establish her chosen avatar's presentation, not her real-world features. She is a university student during the main story and later prepares for employment before taking over Café Reason. (Chapters 5, 52, and 228)

Yiyu is lively, teasing, and blunt with people she trusts. She trades dry jokes with Ian, needles him about women, and can be impatient with friends, while others describe her as initially indifferent until a relationship becomes close. Under that outward sharpness, she is attentive: she makes food when Ian neglects himself, notices his prolonged absences and changes of mood, and worries immediately when he hints that he may leave. She also wants to be treated as capable. Her insistence that Ian stop sacrificing himself, her refusal to displace Yeori through nepotism, and her calm handling of his capsule crisis show independence developing alongside—not in place of—her trust in him. (Chapters 5, 65, 87, 126, 201, and 216)

Skills, powers, and limitations

Yiyu's only established supernatural role is her early Elder Lord character, an elf mystic. The story gives much more evidence for the limits of that character than for a developed combat system. Her later accomplishments are educational and practical, and the corpus never shows her receiving transferred Elder Lord powers during the Great Monster Era.

Elf mystic and spirit companions

Yiyu creates an elf mystic and uses spirits while performing a beginner activity, shearing sheep. She calls the spirits her “kids,” and they respond when hostile users chase her, resisting the attackers until they are overcome and sent back to the spirit world. This demonstrates that the spirits can act protectively and be removed from the immediate encounter, but the source does not name them, specify how she summons or commands them, describe distinct elemental powers, or state whether their return is death, dismissal, or a temporary defeat. No later scene shows the class progressing. (Chapters 5 and 52)

Her roughly ten-percent assimilation rate is the central limitation. Yiyu cannot immerse herself deeply because she remains conscious that Elder Lord is a game, and her low rate accompanies very poor combat performance: even a rabbit kills her, while three experienced users easily eliminate her spirits and capture her. Low assimilation also reduces how much pain she feels during the attack, but it does not prevent fear, humiliation, or emotional attachment to the spirits. She quits afterward and, despite briefly reconsidering when returning players receive new opportunities, does not reconnect in the supplied corpus. Her latest source-grounded state is therefore a retired novice mystic, not an active hunter or ranker. (Chapters 3, 13, 52, 65, and 154)

Academic and practical abilities

Yiyu is particularly good at languages, achieving a TOEIC score above nine hundred after setting that as her target. She later expects a scholarship and prepares for employment through interview classes. These accomplishments support her claims of competence, although the corpus does not state her final degree result or show her receiving a particular job. In the Great Monster Era, she operates Café Reason successfully while Ian is abroad. The narrative does not detail her management methods, staffing authority, finances, or how she learned the work, so the café's continued success is the established result rather than evidence for unexplained professional techniques. (Chapters 151, 201, 228, and 234)

Power progression

Relationships

• Crockta / Jung Ian: Yiyu's request draws Ian into Elder Lord, and her harassment supplies the immediate purpose behind his protective role. She loves and trusts him but increasingly rejects being used as the reason for his self-denial. For most of the story she does not know he is Crockta, and the corpus does not depict a full disclosure after his return.
• Han Yeori: Yiyu likes Café Reason's manager and recognizes that Yeori has earned her position, which is why she initially refuses Ian's suggestion that she simply work at the café. She later takes responsibility for operating the business when Ian's hunter work keeps him abroad.
• Yoon Bora: Bora is one of Yiyu's closest university friends. They study, celebrate exam results, eat and drink together, and follow Crockta's broadcasts, although Bora is much more invested in Elder Lord after Yiyu quits.
• Park Jungtae: Jungtae is a university friend who defends Yiyu during the dispute with a senior, stays in contact with Ian, and calls him when Yiyu needs help getting home. The corpus repeatedly teases Jungtae's concern for her but does not establish a romantic relationship.
• Baek Hanho: Hanho is Ian's teacher and quietly watches Yiyu's relatives while Ian is serving overseas. Ian later trusts that Hanho would protect her if he died, although Yiyu is not told about that arrangement.

Items

No notable personal item belonging to Yiyu is established in the supplied corpus.