What Is Sunny About?
The premise of Sunny in 272 words, with nothing given away. The full story follows below.
In a sun‑drenched Seoul that shifts between the restless energy of high school corridors and the quieter rhythms of adult life, a tightly‑knit circle of seven girls carved out a sanctuary called “Sunny.” The film opens with Na‑mi, a seemingly perfect housewife whose polished exterior masks a deep sense of isolation. A chance encounter with an old hospital nameplate pulls her back to the vibrant world of an all‑girls school, where she first meets Choon‑hwa, the charismatic leader whose confidence anchors the group. Together they navigate the exuberance, insecurities, and first loves that define adolescence, forming bonds that feel both fragile and unbreakable.
Twenty‑five years later the lives of the former members have drifted in divergent directions—careers, families, and personal challenges have reshaped their identities. When a beloved friend lies gravely ill, a heartfelt request sparks the promise of a reunion, urging each woman to return to the place where their brightest memories were forged. The present‑day narrative feels gently nostalgic, blending the wistful ache of what has been left behind with the quiet hope of rediscovering connection.
The tone of Sunny balances warmth and melancholy, inviting viewers to linger on the subtle humor of everyday moments while feeling the tug of unresolved longing. Its visual style juxtaposes the bright pastel palette of teenage days with the softer, more muted hues of adulthood, underscoring the contrast between youthful optimism and the measured pace of grown‑up life. Through Na‑mi’s introspective journey and the lingering echo of the group’s laughter, the film paints an intimate portrait of friendship’s enduring imprint, hinting at the possibility that reconciling with the past may gently reshape the future.
What Happens in Sunny?
The complete story of Sunny, from the first scene to the last, in 609 words (about 3 minutes). Spoilers throughout. Names in the text link to 6 cast member pages.
Spoilers ahead
Na-mi is a wealthy but deeply unsettled housewife who feels more alone than ever despite the comfort of her seemingly flawless life. Her husband and daughter seem distant, and she starts each morning eating breakfast by herself, confronted with a widening emotional gap between her inner world and the life she appears to lead. A visit to her mother in the hospital becomes a turning point: a patient’s room bears the name Ha Chun-hwa, and that label jolts Na-mi back to memories of her past that she long thought were buried.
That spark pulls Na-mi back through time to her high school days, where she is reborn as a new student in an all-girls school in Seoul. In this teenage chapter, the young Na-mi, Young Na-mi, confronts a world that initially mocks her for her country accent and her appearance. Yet she finds belonging among a tight-knit circle led by Choon-hwa (the adult name she carries in memory), and together they form the close bond known as Sunny. The group is a mix of personalities—someone obsessed with beauty, others who are loud or quiet, all drawing strength from their shared experiences. Within this world of first loves and fierce friendships, Na-mi’s heart briefly touches adolescence through a romance with Han Joon-ho, the friend of Jang-mi’s brother, only to be unsettled when she sees him with Su-ji.
Back in the present, Na-mi learns that Choon-hwa is terminally ill and that the time has come to reunite Sunny. With the help of her former teacher and a private detective, Na-mi tracks down the other former members and begins to piece together how their lives have diverged since their teenage days. The search reveals a tapestry of challenges: Jang-mi has become an insurance agent and faces the realities of adulthood; Jin-hee has grown into an elegant woman whose marriage is strained by infidelity; Geum-ok is unemployed and squeezed into cramped living conditions; Bok-hee has turned to prostitution while her daughter battles illness; Su-ji remains elusive as ever. Na-mi also reconnects with Joon-ho, reexamining the feelings she once had for him.
As the memories flood back, a new layer of drama unfolds: during a school festival in the past, Sang-mi—now a jealous voice among the students and portrayed by Sang-mi—causes fear and harm in Na-mi’s circle, and Su-ji is drawn into the crisis in a way that leaves a lasting scar. The group’s resolve is tested when Sang-mi wreaks more trouble, culminating in a frightening incident that cements the fierce loyalty among Sunny members.
The present-day reunion story deepens as the women band together to confront old wounds and new challenges—refusing to let the past define their futures. They confront the bullies who threaten Na-mi’s daughter, and they gather at Choon-hwa’s funeral with a promise to honor her memory. The will she leaves behind offers thoughtful gifts and opportunities for each member, helping them reclaim a measure of control over their lives. The mood shifts from solemn remembrance to a joyful tribute as they recreate their old routines, and Sung-ji-ru appears as the lawyer who reads the will, bridging past and present in a final, poignant moment. Su-ji unexpectedly returns, completing the reunion and underscoring the film’s hopeful turn toward reconnecting with the people who shaped them.
In the end, the story folds nostalgia into a quiet celebration of resilience. The memories of Sunny—together with the courage to face their own trials—mark a renewed sense of purpose for each woman. The film closes with a flurry of flashbacks to their teenage years, inviting audiences to linger on the sweetness and pain of that shared youth while recognizing the strength they’ve found as adults.
Sunny Timeline: Every Key Event in Order
12 key events in the order they happen, from “Na-mi's lonely mornings at home” to “Funeral, will and reunion”. 12 events name a place, across 12 locations.
- 1
Na-mi's lonely mornings at home
Na-mi, a wealthy but depressed housewife, eats breakfast alone every morning and feels emotionally distant from her family. She longs for connection and meaning beyond her pristine life. This opening moment sets the tone of her quiet dissatisfaction with the façade of perfection.
When:Present - mornings Where:Home
- 2
Hospital visit triggers memory
During a visit to her mother's hospital, Na-mi spots a patient room bearing the name Ha Chun-hwa, and the memory of her high school days comes flooding back. The name acts as a catalyst that pulls her toward the past she left behind. This moment marks the transition from present to flashback.
When:Present Where:Hospital
- 3
Back to high school as a new student
In the past, Na-mi is introduced as a new student at an all girls high school in Seoul. She is ridiculed for her country accent and appearance, but her encounter with Ha Chun-hwa soon earns her a place in Sunny. The group comprises several friends and becomes her new circle as she navigates teenage life.
When:Past - teenage years Where:Seoul all girls high school
- 4
Joining Sunny and facing rivals
Na-mi bonds with Chun-hwa and officially joins the six member group Sunny, alongside Jang-mi, Jin-hee, Geum-ok, Bok-hee, and Su-ji. Together they share adventures and form a tight knit alliance, even as a rival group from another school challenges them during a police riot. The early camaraderie foreshadows the enduring ties they'll later fight to preserve.
When:Past Where:High school campus
- 5
First love and heartbreak
Na-mi experiences her first love with Han Joon-ho, a boy connected to Jang-mi's circle. Her feelings are unsettled when she sees Joon-ho with Su-ji, leaving Na-mi with heartbreak and confusion. This romantic thread complicates her sense of belonging within Sunny.
When:Past Where:School grounds
- 6
Chun-hwa illness spurs reunion plan
Back in the present, Na-mi learns that Chun-hwa is terminally ill and decides to reunite Sunny before it is too late. She resolves to bring the group back together, honoring Chun-hwa's memory through their friendship. The news acts as a catalyst for a multi decade plan to reconnect.
When:Present Where:Present - Na-mi's life
- 7
Searching for Sunny members
With help from her old teacher and a private detective, Na-mi locates each Sunny member and discovers where they are now. Jang-mi is a struggling insurance agent, Jin-hee is an elegant wife with a cheating husband, Geum-ok is unemployed, Bok-hee has turned to prostitution, and Su-ji remains elusive. These portraits show how far they've drifted from their teenage selves.
When:Present Where:Citywide search
- 8
Closure with Joon-ho
Na-mi finally locates Han Joon-ho and confronts the unresolved feelings from their youth. The encounter gives her emotional closure and strengthens her resolve to reunite with Sunny for Chun-hwa's sake. She returns to the plan with renewed purpose.
When:Present Where:City
- 9
Sang-mi's bullying and Su-ji's rescue
In flashbacks, Sang-mi, a jealous rival, torments Na-mi, but Su-ji intervenes to save her. The incident helps cement the bond within Sunny and foreshadows the group's lasting loyalty. The rescue also paves the way for Su-ji to become part of the circle.
When:Past Where:High school
- 10
Festival night tragedy
During the school annual festival, Sang-mi's control spirals, Chun-hwa steps in to defend Na-mi, but Sang-mi injures Su-ji with a shard of glass. Su-ji is rushed to the hospital and the Sunny girls are beaten by the principal. The event marks a brutal turning point in their teenage years.
When:Past Where:School festival
- 11
Promise to meet again
That night, Na-mi and the Sunny members gather in front of Su-ji's house, and Chun-hwa urges them to join hands and promise they will meet again in the future. The vow becomes a guiding thread that will pull them back together years later. It is a poignant moment of unity amid uncertainty.
When:Past night Where:Su-ji's house
- 12
Funeral, will and reunion
Chun-hwa passes away before the reunion, but the women rekindle their friendship and confront new challenges including revenge on a bullying group targeting Na-mi's daughter. At Chun-hwa's funeral they all attend except Su-ji, who is later invited publicly by a newspaper notice. The lawyer reads Chun-hwa's will, revealing meaningful gifts and opportunities for each Sunny member, and they celebrate with a dance to their old routine as Su-ji makes a surprise appearance, ending with nostalgic flashbacks to their teenage years.
When:Present Where:Chun-hwa's funeral
Who Are the Main Characters in Sunny?
9 characters, among them Na-mi (Yoo Ho-jeong), Ha Chun-hwa and Joon-ho (Lee Kyung-young): who each one is and the part they play in the story. 7 of them link to the actor’s page.
- N(
Na-mi (Yoo Ho-jeong)
Played by Yoo Ho-jeong
A wealthy but depressed housewife who feels disconnected from her family. She revisits high school memories, seeking closure and reconnecting with old friends. Her journey centers on rediscovering herself beyond her domestic role.
- 💔 Loneliness
- 🤝 Friendship
- 🪞 Self-discovery
- HC
Ha Chun-hwa
Leader figure in Sunny during high school and someone Na-mi looks up to. She becomes terminally ill in the present, prompting the reunion. She inspires solidarity and courage among her former friends.
- 🌸 Leadership
- 💪 Resilience
- 🕊 Nostalgia
- J(
Joon-ho (Lee Kyung-young)
Played by Lee Kyung-young
Na-mi's first love during high school, a member of the group who rekindles old feelings but their romance remains unresolved by the end of the festival and reunion.
- 💘 Romance
- 💔 Heartbreak
- 🕰️ Memory
- S(
Su-ji (Min Hyo-rin)
Played by Min Hyo-rin
Sunny's elusive member who becomes Na-mi's close friend as teens; later she remains distant in adulthood. She is central to Na-mi's present-day need for closure.
- 💫 Friendship
- 🌫️ Distance
- 🧠 Mystery
- J(
Jang-mi (Koh Soo-hee)
Played by Koh Soo-hee
Sunny member known for her charisma; later a source of strength for the group; she embodies the resilience and complexity of their friendship across time.
- 🎯 Leadership
- 🛡️ Protection
- J(
Jin-hee (Hong Jin-hee)
Played by Hong Jin-hee
Sunny member who grows into an elegant, authoritative figure; her arc reflects how the group evolves and handles adversity.
- 👗 Transformation
- 🧭 Social status
- G(
Geum-ok (Lee Yeon-kyung)
Played by Lee Yeon-kyung
Geum-ok, Sunny member who faces hardship, unemployment, and cramped living space in adulthood; she remains connected to the past and to the friendship that sustains her.
- 💪 Resilience
- 🏠 Struggle
- 👭 Friendship
- B(
Bok-hee (Kim Bo-mi)
Played by Kim Bo-mi
Sunny member who transforms into a mother whose choices reflect the difficult paths the girls take after school, highlighting the film's exploration of resilience and sacrifice.
- 🌸 Transformation
- 💼 Struggle
- S(
Sang-mi (Chun Woo-hee)
A jealous classmate who torments Na-mi in the past; her later actions and fate underscore the consequences of bullying and the possibility of reconciliation.
- 😈 Bullying
- 🔄 Reunion
Where and When Is Sunny Set?
Sunny is set in Seoul, hospital and Private Detective Office. Here is why the place matters to the story.
Where
Seoul, hospital, Private Detective Office
Sunny unfolds in Seoul, weaving between a modern urban backdrop and the close-knit high school world where Na-mi and her friends form the group Sunny. Key locations include Na-mi's home and the hospital where she visits her mother, the old all-girls high school, and a private detective office that helps reunite the group. These places anchor the film's memory-driven narrative and highlight the enduring bonds of friendship.
- 🌆 City
- 🏥 Hospital
- 🕵️ Private Detective
What Are the Themes of Sunny?
3 ideas the story keeps returning to, among them Friendship, Nostalgia and Self-discovery.
-
01
Friendship
The core of Sunny is the lasting friendship among Na-mi and the Sunny group. Through years apart, the film shows how their bonds endure, adapt, and heal wounds, culminating in a reunion that honors their shared past.
-
02
Nostalgia
Flashbacks to high school days allow Na-mi to revisit her younger self and the dynamics of Sunny. The nostalgia drives the present-day actions as the women seek closure, forgiveness, and a chance to relive happier times.
-
03
Self-discovery
Each member of Sunny faces upheaval after school: career struggles, relationships, and personal growth. The journey back to one another helps Na-mi rediscover her identity beyond her role as a wife and mother.
What Kind of Film Is Sunny?
Bittersweet in tone, with variable pacing and a moderate story, going by the plot summary.
- Tone
- Bittersweet
- Pacing
- Variable
- Story
- Moderate
- Intensity
- Medium
- Ending
- Bittersweet
A poignant and nostalgic journey that oscillates between the joyful energy of youthful friendship and the melancholic weight of adult disappointments, ultimately affirming the enduring power of human connection.
- nostalgic
- melancholic
- heartfelt
- reflective
- wistful
- supportive
- friendship
- reunion
- coming of age
- grief and loss
Content notes: terminal illness.
Quiz
How well do you remember Sunny? Test yourself on the story.
