What Is Su-ki-da About?
The premise of Su-ki-da in 311 words, with nothing given away. The full story follows below.
In a quiet Japanese town, the rhythms of daily life are punctuated by the soft strumming of an acoustic guitar beside a lonely floodgate. Yosuke, a thoughtful high‑school student, spends his afternoons coaxing a simple melody from his instrument, a tune that becomes a silent invitation to anyone who stops to listen. Among those drawn to the music is his classmate Yu, whose own curiosity is sparked not just by the notes but by the unspoken yearning that lingers beneath them. Their early connection is fragile and tentative, built on shared moments of quiet observation and the hopeful promise of a song that is never quite finished.
The film paints a world that shifts from the hazy, sun‑drenched corridors of adolescence to the bustling, neon‑lit streets of modern Tokyo, mirroring the characters’ internal journeys. As Yosuke matures, he follows his passion into music production, navigating the fast‑paced, creative pulse of the capital while still carrying the faint echo of his teenage refrain. Yu, meanwhile, remains anchored to the memory of that unfinished piece, her life subtly guided by the longing it represents. The tonal palette blends gentle nostalgia with a contemporary edge, allowing moments of quiet reflection to sit comfortably alongside the city’s restless energy.
When fate gently nudges their paths together once more, the reunion is charged with both familiarity and the weight of years lived apart. The lingering melody that first bound them resurfaces, now seasoned by experience and the inevitable changes time imposes. Their renewed encounter is less about resolving the past than about feeling the persistent undercurrent of a connection that has quietly endured. In a story that celebrates the delicate balance between what is left unsaid and what is deeply felt, the film invites the audience to wonder how love can evolve yet remain rooted in the simple, shared rhythm that first brought two strangers together.
What Happens in Su-ki-da?
The complete story of Su-ki-da, from the first scene to the last, in 526 words (about 2 minutes). Spoilers throughout. Names in the text link to 4 cast member pages.
Spoilers ahead
High school student Yosuke, Hidetoshi Nishijima, spends most of his free time by a floodgate, coaxing the same short tune from his acoustic guitar. He is often joined by a classmate, Yu, Hiromi Nagasaku, who hums along to the melody and helps carry the mood of his music. Yu shares the tune with her elder sister, Sayuri Oyamada, who is mourning the death of her boyfriend, and through Yu, a delicate connection forms between Yosuke and the two sisters. As the days unfold, Yu arranges a few meetings between Yosuke and her elder sister, hoping the music might bridge the gap created by tragedy. During one after‑school moment, Yu kisses Yosuke, but he steps back, leaving Yu with a sense of loss and confusion.
As their story takes a darker turn, Yu’s elder sister is walking toward Yosuke when a truck suddenly strikes her, and she slips into a coma. The shock of the accident shadows Yu, and she tells Yosuke that she longs to hear his completed song when it is finished, tying the two of them to a musical promise that time cannot erase. The incident reverberates through Yu’s life and reshapes the meaning of the tune they shared.
Seventeen years pass. In Tokyo, Yosuke has become a music producer who works behind the scenes, shaping sounds and guiding other artists. One night, he intervenes when a man interferes with an intoxicated woman lying in the street, taking her to recover in his apartment. The moment is quiet and humane, yet it signals a shift from the schoolyard guitar to a more adult, complex world of responsibility and risk. During a break at the studio, a woman begins to play a few notes from the song Yosuke played in his school days, and he realizes, with a stirring recognition, that the performer is Yu.
They return to Yosuke’s apartment, drink sake, and the conversation deepens. Yu confesses that her elder sister remains in a coma, a truth that keeps a distance between memory and present reality. The moment is intimate, tender, and painful, and they share a quiet, fragile kiss as they acknowledge the pull that history still holds over them. Afterward, they visit Yu’s elder sister in the hospital, where Yu eventually takes leave at the train station, leaving Yosuke with the promise of the finished song and the possibility of a final, healing performance.
To reach that moment, Yosuke searches for Yu in the memories they built together, and he calls her number from a phone book, expressing his desire to play the completed composition for her sister—an act that binds past and present through music. On the way to meet Yu, Yosuke is stabbed by the criminal, Ryo Kase, the man he had previously shooed away from the intoxicated woman. He collapses in the street, bleeding, while Yu waits, immobilized by a mix of fear and hope. The film builds toward a quiet, aching pause as Yu visits Yosuke in the hospital and repeats that she loves him, with Yosuke replying that he loves her as well, confirming that the song’s memory has finally found a form in their shared sincerity.
Su-ki-da Timeline: Every Key Event in Order
12 key events in the order they happen, from “Yosuke's floodgate ritual and tune” to “Final confession of love”. 11 events name a place, across 10 locations.
- 1
Yosuke's floodgate ritual and tune
Young Yosuke spends his free time by a floodgate, playing the same short tune on his acoustic guitar. He is often joined by Yu, a classmate, who hums along and shares the moment.
When:School days Where:Floodgate area
- 2
Yu introduces Yosuke to her sister
Yu hums Yosuke's tune to her older sister, who mourns a deceased boyfriend, and she hopes the music soothes her. To bring them together, Yu arranges a few meetings between Yosuke and her sister.
When:School days Where:Sister's home
- 3
Yu kisses Yosuke after school
After talking with Yosuke after school, Yu kisses him, but he walks away, leaving her devastated. Her feelings for him remain unresolved.
When:After school Where:School area
- 4
Tragic accident and sister's coma
While Yu heads to see Yosuke, her sister is struck by a truck and falls into a coma. The accident shatters Yu and deepens the mystery surrounding the music.
When:Same day Where:Street
- 5
Yu's wish to hear the finished song
Yu tells Yosuke that she wants to hear his finished song. This promise lingers between them as a motivation through the years.
When:After the accident
- 6
Seventeen years later: Yosuke in Tokyo
Now an adult, Yosuke works as a music producer in Tokyo. During a break at the studio, he intervenes to pull an intoxicated woman from danger and brings her to his apartment to recover.
When:17 years later Where:Tokyo, music studio
- 7
A familiar tune reconnects Yosuke with Yu
During a break, a woman plays a few notes from Yosuke's school song, and he realizes she is Yu. They return to his apartment, share sake, and talk.
When:During a break at the studio Where:Yosuke's apartment
- 8
Yu reveals sister still in coma; they kiss
Yu tells him her sister is still in a coma. The moment is tender as Yosuke comforts her, and they kiss.
When:Evening Where:Yosuke's apartment
- 9
Visit to hospital; Yu leaves for train station
They visit Yu's sister at the hospital, and Yu leaves before they head to the train station. Yosuke is left with thoughts about the sister and the song.
When:That day Where:Hospital and train station
- 10
Yosuke calls to share the finished song
Yosuke looks Yu up in the phone book and calls to say he wants to play the finished song for her. He heads toward their meeting with anticipation.
When:After the hospital visit Where:Phone book / on the way
- 11
Attack on the way to meet Yu
On the way to meet her, he is stabbed by the man he shooed away earlier. He lies in the street bleeding while Yu waits for him.
When:Moment after the call Where:Street outside
- 12
Final confession of love
Yu visits Yosuke in the hospital and tells him she loves him. He replies that he loves her, too.
When:After the attack Where:Hospital
Who Are the Main Characters in Su-ki-da?
8 characters, among them Yosuke (Hidetoshi Nishijima), Yu (Hiromi Nagasaku) and Yu's Elder Sister (Sayuri Oyamada): who each one is and the part they play in the story. Every profile links to the actor’s page.
-
Yosuke (Hidetoshi Nishijima)
Played by Hidetoshi Nishijima
A high school student who spends his free time by a floodgate, coaxing the same short tune from his guitar. Seventeen years later, he has become a music producer shaping sounds and guiding artists. The story follows his emotional growth, his care for Yu, and his willingness to bridge past and present through music.
- 🎸 Music
- 🕰️ Memory
- 💼 Producer
- Y(
Yu (Hiromi Nagasaku)
Played by Hiromi Nagasaku
A classmate who hums along to the melody and helps carry the mood of Yosuke’s music. She arranges meetings between Yosuke and her elder sister, hoping the music can bridge the gap created by tragedy. Her evolving feelings and the longing for a completed song deepen the connection across time.
- 🎤 Music
- 💞 Romance
- 🌀 Memory
- YE
Yu's Elder Sister (Sayuri Oyamada)
Played by Sayuri Oyamada
Mourning the death of her boyfriend, she is struck by tragedy and falls into a coma after a truck accident. The memory of the shared tune links her to Yosuke and Yu, shaping the emotional stakes of the present. Her condition anchors the promise to finish the song and heal the past.
- 💔 Tragedy
- 🏥 Illness
- 🎶 Memory
-
Criminal (Ryo Kase)
Played by Ryo Kase
A man who encounters Yosuke after a moment of intervention and ultimately stabs him in the street. This act introduces danger into the narrative and tests the characters’ resilience, marking a turning point in the present timeline.
- 🗡️ Violence
- ⚖️ Consequence
- 🧭 Fate
- YY
Young Yosuke (Eita Nagayama)
Played by Eita Nagayama
The younger version of Yosuke during school days, where his musical curiosity and bond with Yu begin to take shape. These memories lay the groundwork for his later life and the enduring melody.
- 🎹 Youth
- 🕊️ Memory
- 🌀 Origin
-
Young Yu (Aoi Miyazaki)
Played by Aoi Miyazaki
The younger version of Yu, who shares the tune with Yosuke in their school days, initiating the connections that echo through the film’s future. Her presence marks the early moment of emotional resonance between the two.
- 🎶 Youth
- 💞 Bond
- 🌀 Origin
- T(
Teacher (Nao Mori)
Played by Nao Ômori
A teacher figure appearing in the film’s school-era scenes, contributing to the setting and environment where Yosuke and Yu’s story begins.
- 🏫 Education
- 🧭 Guidance
- 🕰️ Memory
- T(
Torami (Maho Nonami)
Played by Maho Nonami
Part of Yu’s circle in the story’s broader social world, contributing to the supportive network surrounding Yu and her sister.
- 🤝 Support
- 🌆 Social circle
- 🧩 Connection
Where and When Is Su-ki-da Set?
Su-ki-da is set in Floodgate, Tokyo, Hospital, Yosuke's apartment and Recording studio. Here is why the place matters to the story.
Where
Floodgate, Tokyo, Hospital, Yosuke's apartment, Recording studio
The story begins at a floodgate where Yosuke spends time with his acoustic guitar. As time passes, the action moves through Tokyo, framing Yosuke's evolution into a behind-the-scenes music producer. The elder sister’s coma anchors the present, while scenes in an apartment and a recording studio highlight intimate, everyday moments. Together, these places map a journey from memory to healing through music.
- 🌉 Floodgate setting
- 🏙️ Urban Tokyo
- 🏥 Hospital
- 🏢 Recording studio
- 🏠 Apartment
What Are the Themes of Su-ki-da?
3 ideas the story keeps returning to, among them Memory through Music, Love and Promise and Duty and Consequence.
-
01
Memory through Music
Music is the thread that binds past and present, turning a schoolyard tune into a lasting bond. The same melody travels from the moment of the kiss to the hospital and back to a promised performance, shaping choices and feelings along the way. The film uses the tune to keep memories alive, even as life becomes more adult and uncertain. Through rhythm and repetition, memory and identity are preserved and revisited.
-
02
Love and Promise
Love emerges as a force that crosses timelines, drawing Yosuke and Yu together despite distance and tragedy. The kiss and the longing to finish the song create a healing bond that persists through Yu’s sister’s coma. The musical promise becomes a bridge between memory and reality, giving meaning to both loss and reconciliation. The narrative treats love as a persistent, shaping influence across years.
-
03
Duty and Consequence
Yosuke’s shift from a schoolyard musician to a responsible producer marks a move into adult life with real-world risks. An act of intervention to help an intoxicated woman signals his growing sense of duty, while the criminal stabbing introduces danger and consequence. The film juxtaposes artistic aspiration with the fragility of safety, highlighting accountability and moral choice. In the end, memory and love affirm a mature form of responsibility.
What Kind of Film Is Su-ki-da?
Bittersweet in tone, with slow pacing and a straightforward story, going by the plot summary.
- Tone
- Bittersweet
- Pacing
- Slow
- Story
- Straightforward
- Intensity
- Medium
- Ending
- Bittersweet
A melancholic and tender drama that unfolds with quiet slowness, tracing the bittersweet arc of a lifelong connection shaped by tragedy and the haunting power of memory and music.
- melancholic
- nostalgic
- tender
- quiet
- reflective
- aching
- lost love
- grief and loss
- memory
- fate
Content notes: sudden death, coma, stabbing.
Quiz
How well do you remember Su-ki-da? Test yourself on the story.
