Sunmi Eun
𝐋𝐚𝐜𝐮𝐧𝐚 | 𝑱𝒆𝒐𝒏 𝑱𝒖𝒏𝒈𝒌𝒐𝒐𝒌Sunmi Eun is the psychologist whose practice in Ellensburg becomes a recurring place of safety, disclosure, and gradual reconstruction. Her importance extends beyond professional treatment: she is also the adult who sheltered Jungkook after he fled his abusive home, and her knowledge of both young people allows her to recognize the depth of their injuries without reducing them to those injuries. Through Sunmi, the novel presents care as patient, practical, and relational rather than as a sudden cure.
Identity and Professional Role
Sunmi Eun works as a psychologist in Ellensburg, where Shelby is referred to her after previously speaking with Dr. Andréa Jefferson. She introduces herself as Dr. Eun Sunmi and welcomes Shelby into her office, immediately establishing a calm setting in which the student is invited rather than compelled to speak. Sunmi understands that Shelby has difficulty integrating into her new surroundings and opening herself to other people after a traumatic event. Instead of demanding a complete account, she asks whether Shelby wants to discuss it, preserving the young woman’s choice at the threshold of treatment.
Sunmi’s clinical attention is direct but not accusatory. She asks about Shelby’s past, acknowledges that Shelby has already discussed it with Dr. Jefferson, and later addresses the subject of self-harm carefully. Her questions make the concealed history of Shelby’s suffering speakable without turning the disclosure into spectacle. Sunmi also identifies Shelby’s distrust as a central difficulty: Shelby withholds confidence because she expects eventual disappointment. Sunmi proposes that they work on this together in future sessions, while recognizing that rebuilding trust with a new therapist requires starting again from the beginning.
Her practice also includes patients dealing with bereavement. While Jungkook is staying with her, Sunmi works on a case involving a woman who has lost her wife and cannot tolerate the absence of her companion. Sunmi understands grief as slow and painful, while also recognizing that different people interpret death in sharply different ways. This detail broadens her professional identity beyond Shelby and Jungkook: she is accustomed to meeting suffering in varied forms and does not impose a single timetable or emotional response on those who seek help.
Care for Shelby
Sunmi’s work with Shelby is grounded in safety and pacing. When Shelby is distressed, Sunmi asks her to follow her breathing and anchors the exercise through eye contact. The scene reveals how severe Shelby’s inner collapse appears to the psychologist: Sunmi perceives an almost frightening emptiness and realizes that the student is far more psychologically broken than she had expected. Her concern does not become coercion. She continues to offer presence, structure, and the possibility of future work rather than claiming immediate mastery over Shelby’s condition.
Sunmi also treats Shelby’s relationship with Jungkook as clinically relevant without dismissing it as a distraction. When Shelby describes his presence, Sunmi asks how Shelby feels when he is there and recognizes that Shelby is in love with him. She advises the couple to speak calmly, identifying communication as essential to every kind of relationship. The advice is significant because it neither romanticizes pain nor forbids intimacy; it asks Shelby to connect emotional recognition with deliberate communication.
Her support remains active when Shelby is frightened by Madison. After Madison realizes that Shelby is having a panic attack and believes she may be harmed, she goes to find Jungkook, who runs to Shelby’s side. Sunmi’s broader therapeutic role helps explain why such responses matter: Shelby’s recovery depends on people learning to approach her without repeating the violence of unwanted control. Sunmi’s method repeatedly makes room for consent, breathing, gradual disclosure, and the rebuilding of trust.
Bond with Jungkook
Sunmi’s relationship with Jungkook predates her treatment of Shelby. She first knew him as a quiet, discreet child who returned home one day with a badly injured face. He claimed that he had been in a school fight and that Namjoon had intervened before matters became worse, and Sunmi initially believed him. The truth became clearer when Jungkook ran away from home at sixteen and took refuge with her. His father did not search for him, while Sunmi welcomed him without hesitation.
In Sunmi’s home, Jungkook was not turbulent or disrespectful. He was grateful that she took him under her protection, and that gratitude continued into his later life. Yet Sunmi remained worried because she could see the difference between his conduct with her and the darkness surrounding him elsewhere. Namjoon shared his fears about Jungkook, confirming that the young man’s violence and emotional danger were not simply a passing adolescent rebellion. Sunmi recognizes those darknesses because she has encountered them directly, including the effects of Jungkook’s father’s abuse.
The childhood violence is shown in concrete form: Jungkook’s father throws a glass against the wall, sends a shard into Jungkook’s face, grabs him by the collar, and slaps him repeatedly. Sunmi’s later protectiveness therefore rests on knowledge of a real history, not on sentimental speculation. She becomes an alternative adult attachment in a family structure marked by abandonment and violence, offering shelter where Jungkook’s father offered fear and where the father did not even bother to bring him home.
Sunmi continues to speak to Jungkook with unusual tenderness while respecting his guarded nature. She tells him that he can tell her anything and assures him that she will remain present whether he wants her there or not. She also offers to be his sun during difficult and joyful moments. The language is intimate, but her care is not passive: she asks him to learn Shelby’s character, move at Shelby’s pace, and avoid force or brusqueness. Her guidance translates her knowledge of trauma into a practical rule for his conduct.
Influence on the Couple’s Recovery
Sunmi’s presence creates a bridge between Shelby’s treatment and Jungkook’s own history. Shelby is surprised to learn that Dr. Eun is Jungkook’s mother in the emotionally functional sense of the relationship, even though Sunmi’s role is not presented as biological parenthood. The surprise clarifies how unusual Jungkook’s support system is: the woman treating Shelby is also the person who sheltered him, understands his childhood, and can speak to him without being intimidated by his darker impulses.
Her advice places responsibility on Jungkook rather than allowing his protectiveness to become another form of control. He is told to approach Shelby gradually, listen to her rhythm, and avoid sudden pressure. That counsel becomes especially important because Shelby reacts violently to unexpected touch: when Cassiopée places both hands on her shoulders, Shelby cries out in pain, pulls away, and curls inward, refusing contact. Sunmi’s approach stands in contrast to this trigger. Her care depends on controlled proximity and cooperation, not on assuming that comforting intentions make touch harmless.
The novel also parallels Sunmi’s care with Jungkook’s improvised care for Shelby. In one crisis, Jungkook remains beside Shelby in the changing room while she trembles and cries, unsure how to help but refusing to abandon her. In another, he holds her, strokes her back, and sings "Fix You," a song associated with the soothing care he once received from his mother. Sunmi’s influence is therefore not limited to explicit advice; the safety she offered Jungkook becomes part of the emotional vocabulary he can eventually offer Shelby.
Change, Achievement, and Narrative Significance
Sunmi’s role is measured less by a dramatic personal transformation than by the persistence and effectiveness of her care. She remains available while Shelby begins again with a new therapist, and she remains emotionally invested in Jungkook as he confronts the consequences of his past. Her professional work acknowledges relapse, fear, distrust, and grief as processes rather than obstacles that can be removed in one conversation.
Her pride becomes visible at Jungkook’s graduation from Central Washington University. Sunmi embraces him in tears after he receives his diploma, while Shelby watches and smiles. She tells Jungkook that she is very happy for him and that his mother would certainly be proud. The achievement matters because it contrasts with the abandoned, abused sixteen-year-old whom Sunmi once sheltered. Graduation does not erase his history, but it gives that history a different ending: survival has produced an actual future rather than merely continued crisis.
Sunmi is equally pleased when Shelby returns to Los Angeles for two weeks to confront her past and memories. Her relief comes from knowing that Shelby will not face that confrontation alone. This response captures Sunmi’s defining ethic: healing requires both individual confrontation and dependable companionship. By the end, Shelby and Jungkook have advanced separately and together, leaving their demons behind through a difficult but possible process. Sunmi is one of the figures who makes that possibility credible, representing therapy, chosen family, patient boundaries, and the sustained labor of helping wounded people recover the ability to trust.


