What Is 100 Days with Mr. Arrogant About?
The premise of 100 Days with Mr. Arrogant in 261 words, with nothing given away. The full story follows below.
In the bustling streets of modern Seoul, a teenage girl’s life is thrown into disarray the moment her boyfriend walks away on the cusp of a milestone anniversary. Ha‑young is left to navigate the raw mix of disappointment and everyday chaos that follows a breakup, a feeling that feels both universal and intensely personal. The city’s rhythm—a blend of hurried commuters, neon signage, and the occasional stray can—mirrors her unsettled state, setting a tone that oscillates between light‑hearted mishap and underlying tension.
A chance encounter with a university student changes the course of her day in an unexpected way. When a tossed can ricochets and strikes Hyung‑jun—who happens to be driving a sleek Lexus—he demands immediate compensation for the damage. The demand of three thousand dollars feels absurdly high for a young woman already grappling with financial strain, thrusting her into an uneasy power play that is as much about pride as it is about money. Their interaction crackles with a blend of irritation, curiosity, and an odd, lingering attraction that hints at deeper currents beneath the surface.
What follows is an unconventional arrangement that forces both parties to confront their assumptions about responsibility, independence, and connection. The film balances sharp, comedic beats with moments of genuine emotional weight, creating a tone that feels both playful and introspective. As Ha‑young and Hyung‑jun negotiate the peculiar terms of their agreement, the story invites viewers to wonder how far one will go to settle a debt, and what unexpected bonds might form when two very different lives intersect over a simple, stray can.
What Happens in 100 Days with Mr. Arrogant?
The complete story of 100 Days with Mr. Arrogant, from the first scene to the last, in 508 words (about 2 minutes). Spoilers throughout. Names in the text link to 2 cast member pages.
Spoilers ahead
After being dumped by her boyfriend just before their 100-day anniversary, Ha-Young Ha Ji-won meets a college guy named Hyung-Jun Kim Jae-won when she yanks a kicked can away from him, accidentally hits him in the face, and leaves a scratch on his Lexus. He refuses to let her forget the incident and demands immediate payment of $3,000. Flustered and without money, she escapes, leaving behind her wallet and a sense that her problems just escalated.
Hyung-Jun begins to stalk her, insisting that Ha-Young must settle the bill for the car damage. Because she is a poor high school student, he comes up with an unconventional remedy: an “Enslavement Agreement” that makes Ha-Young responsible for a long list of tasks to pay off the debt. What follows is a harrowing stretch where she finds herself performing a string of chores—scouring the house, hauling groceries, and cleaning the car—while her freedom feels increasingly shackled. The arrangement feels like a nightmare, a test of endurance that stretches across a grueling 100-day period.
The situation takes a surprising turn when Ha-Young learns that the actual cost to repair Hyung-Jun’s car is only about ten dollars. Seizing the moment, she directs a subtle, strategic strike: she damages his car again and damages his reputation as well. But Hyung-Jun retaliates in kind by becoming her new tutor, turning the power balance and the dynamic between them on its head. What starts as a punitive arrangement gradually brings them closer, revealing a complicated complexity to their feelings as they realize they may be falling in love.
As the 100 days draw to a close, Hyung-Jun frees Ha-Young from the “slavery.” The moment culminates with a kiss right at the gate of her house, a sign of possibility and risk alike. Ha-Young’s mother witnesses the exchange and reacts with protective hostility, warning Hyung-Jun to stay away while simultaneously bringing in another tutor to guide Ha-Young. In a fragile, wavering emotional arc, Ha-Young declares her wish to marry Hyung-Jun, but he confesses that his earlier actions were not a serious commitment and that he merely toyed with her. This revelation drives Hyung-Jun to leave his apartment, heightening Ha-Young’s vulnerability and pushing her to study harder to reach Hyung-Jun’s college.
After the exams, when Ha-Young discovers she wasn’t initially selected to enter the same college as Hyung-Jun, their tutor gently leads her to a moment of clarity: Hyung-Jun reveals that she has now been admitted to his college, but he wants to surprise her—an ambiguity that keeps their future uncertain. In a long, reflective sequence, Ha-Young drives and talks with Hyung-Jun about all the chores he once dodged and the duties he left unfinished. Then, a late scene shows a high school boy kicking a can that again clips Ha-Young, re-igniting the need to resolve the damages. She hints at a stark choice: there is only one way to settle the debt, implying that she will work for them and shoulder the chores she’s discussed, a final testament to will, resilience, and the messy path toward love.
100 Days with Mr. Arrogant Timeline: Every Key Event in Order
13 key events in the order they happen, from “Dumped and the car incident” to “Untold possibilities”. 13 events name a place, across 13 locations.
- 1
Dumped and the car incident
Ha-Young is dumped just before their 100-day anniversary; she meets Hyung-Jun when she flicks away a kicked can and accidentally hits him, leaving a scratch on his Lexus. He demands immediate payment of 3,000 dollars. She flees, leaving behind her wallet as her problems escalate.
When:Right after the breakup Where:On a city street near Ha-Young's home
- 2
The Enslavement Agreement is born
Hyung-Jun begins to stalk Ha-Young, insisting she settle the debt. He drafts an unconventional Enslavement Agreement that forces her to perform a long list of chores. Lacking money, she cannot pay and runs away, leaving her wallet behind, while the 100-day ordeal is set.
When:Shortly after the incident Where:Outside Ha-Young's home
- 3
First days of servitude
Ha-Young endures a grueling stretch of chores to pay off the imagined debt, including house cleaning, hauling groceries, and washing the car. The arrangement feels like a nightmare, testing her freedom and resilience. The 100-day timeline is clearly established as the frame of the ordeal.
When:Early in the 100-day interval Where:In Hyung-Jun's home and car
- 4
The miscalculation: car repair is cheap
Ha-Young discovers the actual cost to repair the car is only about ten dollars. Seizing the moment, she plans to strike back by damaging the car again and harming Hyung-Jun's reputation. Hyung-Jun counters by tightening control and escalating consequences.
When:Midway through the 100 days Where:Car area, street
- 5
Power shift: tutoring swap
Hyung-Jun retaliates by becoming Ha-Young's tutor, reversing the power dynamic. The dynamic shifts from punishment to guidance as they spend time in tutoring sessions and daily interactions. This change begins to blur the lines between coercion and care.
When:Shortly after the plan to retaliate Where:Tutoring sessions and around the house
- 6
Growing closeness
The punitive setup gradually gives way to affection as they confront their feelings. What started as manipulation becomes a complicated, evolving relationship. They begin to realize they may be falling in love.
When:During the 100 days Where:Various locations around home and tutoring venues
- 7
End of the 100 days: a kiss at the gate
At the end of the 100 days, Hyung-Jun frees Ha-Young from the arrangement and the two share a kiss at the gate of Ha-Young's house. Ha-Young's mother witnesses the moment, reacting with protective hostility and warning him away. She then brings in another tutor to continue Ha-Young's studies.
When:End of the 100 days Where:Gate of Ha-Young's house
- 8
Love confessed, but not fully committed
Ha-Young declares she wants to marry Hyung-Jun, but he confesses that his earlier actions were not a serious commitment and that he merely toyed with her. He leaves his apartment, leaving Ha-Young more vulnerable and more determined to forge her own path. The moment deepens her resolve to study and grow.
When:Immediately after the kiss Where:Ha-Young's home and Hyung-Jun's apartment
- 9
Exams and college ambitions
After the breakup, Ha-Young studies hard to reach Hyung-Jun's college. A tutor guides her, and Hyung-Jun hints that she will be admitted to his college, but with a surprise element to keep their relationship uncertain. The truth unfolds around exam results and admissions.
When:After the exams Where:College campus and related settings
- 10
The admission twist revealed
During the results, Ha-Young learns she wasn’t initially selected to enter the same college as Hyung-Jun. The tutor gently leads her toward a moment of clarity, revealing that she has now been admitted to that college, though Hyung-Jun wants to surprise her, keeping the future ambiguous. The revelation reshapes their plans and expectations.
When:Post-exam results Where:Campus and related driving sequences
Show the other 3 events of 100 Days with Mr. Arrogant Hide the last 3 events
- 11
Driving toward answers: unfinished chores
In a long reflective sequence, Ha-Young drives with Hyung-Jun and talks about all the chores he once dodged and duties left unfinished. The conversation surfaces the unresolved debt and questions about their future together. The scene marks a turning point toward resilience and self-reliance.
When:After the admission news Where:On the road, driving
- 12
Final scene and open ending
A late scene shows a high school boy kicking a can that clips Ha-Young again, reigniting the need to settle the damages. She hints there is only one way to settle the debt, implying that she will work for them and shoulder the chores. The ending leaves the future open, underscoring resilience and the messy path toward love.
When:Late scene Where:Street near Ha-Young's home
- 13
Untold possibilities
The film closes with an overarching sense of ambiguity about whether Ha-Young and Hyung-Jun will end up together. The characters are left to navigate college, careers, and affection without a definitive resolution. The final mood centers on hope tempered by unresolved questions.
When:Final sequence Where:Various settings
Who Are the Main Characters in 100 Days with Mr. Arrogant?
4 characters, among them Ha-Young (Ha Ji-won), Hyung-Jun (Kim Jae-won) and Ha-Young's Mother (Lee Eung-kyung): who each one is and the part they play in the story. 3 of them link to the actor’s page.
- H(
Ha-Young (Ha Ji-won)
Played by Ha Ji-won
A stubborn but resilient high-school student who gets entangled in a coercive debt-repayment scheme after a car incident. She endures grueling chores and surveillance for 100 days, yet her resourcefulness and determination push her toward independence and genuine feelings she cannot easily ignore.
- 💪 Determined
- 🧭 Resourceful
- 💔 Vulnerable
- 🎯 Persistent
- H(
Hyung-Jun (Kim Jae-won)
Played by Kim Jae-won
A college-enrolled young man who initiates the Enslavement Agreement, wielding control over Ha-Young at first. His manipulation gradually reveals a more complex, evolving attraction, shifting the power dynamic as he becomes a tutor and challenger in equal measure.
- 🧭 Calculated
- 💬 Charismatic
- 💥 Manipulative
- 🎯 Ambitious
- HM
Ha-Young's Mother (Lee Eung-kyung)
Played by Lee Eung-kyung
A protective presence who comments on and reacts to the dangerous dynamic between Ha-Young and Hyung-Jun, showing concern and hostility toward the possibility of danger to her daughter while seeking to guide her.
- 👨👩👧 Protective
- 🛡️ Guarded
- 🗣️ Intervening
- T
Tutor
A figure who becomes a catalyst for Ha-Young's growth, turning the student-mentor relationship into a power-rebalanced dynamic that provokes introspection and eventual determination.
- 🎓 Mentor
- 🧠 Reformative
- 🤝 Guiding
Where and When Is 100 Days with Mr. Arrogant Set?
100 Days with Mr. Arrogant is set in Ha-Young's house, Hyung-Jun's apartment and Ha-Young's school/tutoring location (Present day). Here is why the time and place matter to the story.
When
Present day
The events take place in a contemporary setting, with character dynamics driven by modern dating norms, social expectations, and student life. A strict 100-day period frames the central ordeal, turning daily chores into a measured countdown. The tutor-driven college ambitions and parental involvement reflect current educational pressures. The timeline builds toward the exams and college admission, anchoring the romance in a realistic, present-day context.
Where
Ha-Young's house, Hyung-Jun's apartment, Ha-Young's school/tutoring location
The story unfolds in a contemporary Korean urban setting centered on Ha-Young's home and the spaces where she interacts with Hyung-Jun. Much of the conflict happens at Ha-Young's house, where her mother and the looming debt impose limits on her freedom, and around Hyung-Jun's apartment and shared study spaces where their power dynamic shifts. The car and the house gate become symbolic stages for the clashes, reconciliations, and the eventual fragile closeness between the two leads. The environment reflects a modern, pressure-filled domestic-and-academic life.
- 🏠 Domestic setting
- 🏙️ Urban Korea
What Are the Themes of 100 Days with Mr. Arrogant?
4 ideas the story keeps returning to, among them Power & Control, Romance & Boundaries and Freedom & Agency.
-
01
Power & Control
The Enslavement Agreement creates an uneven power dynamic, with debt and chores used to constrain Ha-Young's freedom. Hyung-Jun's initial control mirrors coercive romance, testing boundaries and consent. As the relationship evolves, control becomes a tool that can both harm and eventually be redirected toward genuine connection. The theme examines how power can corrupt or catalyze personal growth.
-
02
Romance & Boundaries
Romantic feelings surface amid manipulation, raising questions about sincerity and consent. The shifting balance—Hyung-Jun becoming her tutor—allows affection to grow under unexpected circumstances. The couple grapples with trust, expectations, and the ambiguity of commitment. The narrative explores whether love can emerge from a precarious bargain.
-
03
Freedom & Agency
Ha-Young seeks autonomy beyond the 100-day constraint, signaling a move toward self-determination. The revelation that Hyung-Jun's actions were not a serious commitment prompts her to push harder for her own path, culminating in personal resolve. The final moments imply that true partnership should arise from mutual choice rather than coercion. The film frames freedom as essential to growth and authentic love.
-
04
Education & Ambition
Education pressure threads through the plot, as exams and college placement determine futures. The tutoring dynamic reframes the relationship as a vehicle for ambition, not just romance. Ha-Young's determination to join Hyung-Jun's college underscores how academic goals shape personal identities. The film ties romantic outcomes to the pursuit of better opportunities.
What Kind of Film Is 100 Days with Mr. Arrogant?
Light in tone, with steady pacing and a straightforward story, going by the plot summary.
- Tone
- Light
- Pacing
- Steady
- Story
- Straightforward
- Intensity
- Medium
- Ending
- Ambiguous
A playful romantic comedy that balances the tense, confrontational energy of a power-imbalanced debt arrangement with a hopeful, emotionally volatile journey from animosity to affection.
- playful
- confrontational
- emotionally volatile
- hopeful
- tense
- romantic
- enemies to lovers
- paying a debt
- coming of age
- power imbalance
Quiz
How well do you remember 100 Days with Mr. Arrogant? Test yourself on the story.
