What Is The Anthem of the Heart About?
The premise of The Anthem of the Heart in 330 words, with nothing given away. The full story follows below.
In a town where everyday life hums with the quiet rhythm of routine, a young girl named Jun carries a secret that renders her world strangely mute. As a child she once let a careless revelation slip, and since then an imagined curse has bound her words, turning even a whispered thought into an aching unease. The film opens with her navigating high‑school corridors under the gentle pressure of an unseen weight, her inner voice alive with fairy‑tale wonder while her mouth remains sealed.
When Kazuki Jōshima, her homeroom teacher, signs Jun up for a community outreach council, the invitation arrives alongside an unexpected offer to star in a school musical. The prospect forces her to confront the paradox of being asked to lead a performance when she cannot speak, pulling her into a circle of classmates who each bring their own quiet aspirations. Takumi Sakagami, a shy computer‑music enthusiast, offers a creative outlet; Natski Nitō, the bright‑eyed cheerleader, exudes a disciplined confidence; and Daiki Tasaki, a former baseball ace nursing a lingering injury, adds a grounded perspective. Together they form a micro‑cosm of youthful ambition, each character a note in a larger, unspoken melody.
The tone balances tender introspection with the vibrant energy of a musical rehearsal, weaving together moments of gentle humor, lingering melancholy, and the hopeful sparkle of adolescence. The school setting feels both ordinary and enchanted, a stage where personal stories echo the larger fairy‑tale motifs that Jun once cherished. Through whispered texts, shared songs, and the quiet encouragement of friends, the narrative hints at the transformative power of finding one’s voice—whether spoken, sung, or simply felt.
As the story unfolds, Jun is drawn into a delicate dance between duty and desire, between the fear that once silenced her and the burgeoning possibility that her heart might finally be heard. The film invites viewers to linger in the space where imagination meets reality, suggesting that sometimes the most profound awakenings begin with a single, courageous note.
What Happens in The Anthem of the Heart?
The complete story of The Anthem of the Heart, from the first scene to the last, in 756 words (about 3 minutes). Spoilers throughout. Names in the text link to 5 cast member pages.
Spoilers ahead
As a young girl, Jun Naruse, Kyoko Yoshine was very excitable and talkative. She loved fairy tales and was always excited about the castle on the hilltop, which in reality was a love hotel. One day, she saw her father leaving the love hotel. Not realizing the significance, she exposes his infidelity. Her father blames her for the family conflict that follows. While she is crying, she imagines a fairy egg that curses her by sealing her words, so she won’t hurt people again. As a result of her “curse,” Jun is not able to speak and suffers stomachaches whenever she tries to speak.
Years later, in high school, her homeroom teacher Kazuki Jōshima, Yoshiyoshi Arakawa signs her up as a member of the Community Outreach Event along with three other classmates: Takumi, Kento Nakajima the shy computer music researcher; Natsuki Nitō Anna Ishii, the cheerful cheerleader and honor student; and Daiki Tasaki Kanichiro Sato, the former baseball team ace who has a broken elbow. When she goes to the committee’s room to reject her position, Jun hears Takumi singing and is captivated. She then tells Takumi about her past using her phone, and requests for him to turn her words into a song. In this way, Jun learns that though she cannot speak, the “curse” doesn’t affect her if she sings. Her class decides to perform a musical for their school festival based on the story of her experience narrated in the form of a fairy tale.
While discussing the musical, Daiki has a falling out with his teammates. Jun intervenes, which leads to another stomachache, but this improves her bonds with the other committee members. Misunderstanding Takumi’s concern for Jun as a sign that he is falling in love with her, Natsuki tells Takumi that she will cheer them on, despite Natsuki’s feelings for Takumi. The next day, Daiki makes amends with his teammates. As they spend time together preparing for the musical, Jun starts to develop feelings for Takumi, while Daiki starts to develop feelings for Jun. Daiki asks Takumi about his relationship with Natsuki, having heard rumors that both of them were dating during middle school, but Takumi denies this since Natsuki had told her classmates that they were not dating when she was asked. Natsuki also tells Daiki that she currently has a boyfriend.
On the night before the musical, Takumi asks Natsuki about the boy she’s dating currently, leading Natsuki to finally reveal that the boy she’s referring to is none other than Takumi himself before she accuses him of falling in love with Jun. Takumi reveals that while he is concerned about Jun, he is not in love with her and he has always regretted not trying to convey his feelings for Natsuki during middle school even when he was aware of her feelings for him at that time. Unbeknownst to them, Jun overhears their conversation. Heartbroken, she runs away and meets the fairy egg, who reveals that she has worsened the curse by trying to convey her feelings for Takumi. Jun doesn’t show up on the day of the musical, leaving Natsuki to fill her role while Takumi frantically goes searching for her.
Takumi finds Jun at the love hotel that has been shut down. To his surprise, she can talk normally. Jun angrily lashes out at Takumi as he tells her that the reason she is unable to convey her words is not because of the fairy egg’s curse but because of Jun’s fear. Wanting to hear her voice once more, Takumi allows Jun to lash out all of her anger and frustration until she is satisfied. Jun confesses her feelings for Takumi, but it is revealed that Takumi is still in love with Natsuki, to which Jun replies that she knew. Takumi expresses his gratitude for Jun because before he met her, he was unable to say what he truly felt and only went along with everyone else. This convinces Jun to perform in the musical. Jun and Takumi arrive just in time before the final scene, allowing Jun to sing and convey her feelings to her mother who finally understands what she has been through. As the musical ends, Jun realizes that the fairy egg was actually nothing but imagination that she created to have someone she could blame for her condition, and now she decides to open up her heart, coming to terms with her past.
As the movie ends, Takumi and Natsuki reconcile their relationship, while Daiki finally confesses his feelings to Jun.
The Anthem of the Heart Timeline: Every Key Event in Order
15 key events in the order they happen, from “Jun's fairy-tale world: the hilltop castle” to “Ending reconciliations”. 15 events name a place, across 12 locations.
- 1
Jun's fairy-tale world: the hilltop castle
Jun Naruse is introduced as a young, energetic girl who loves fairy tales. She is captivated by a hilltop castle that feeds her imagination. Unbeknownst to her, that castle is actually a love hotel.
When:childhood Where:home and hilltop area
- 2
The father’s infidelity exposed
She witnesses her father leaving the love hotel and exposes his infidelity to the family. Her father blames her for causing the fallout that follows. In her tears she imagines a fairy egg that curses her by sealing her words.
When:childhood Where:home
- 3
The curse takes hold
As a result of the so-called curse, Jun is unable to speak and experiences stomachaches whenever she tries to voice words. She grows distant, carrying the burden of a silence she cannot break.
When:shortly after Where:home
- 4
High school and a new chorus of chance
Years later in high school, their homeroom teacher Kazuki Jōshima signs Jun up for the Community Outreach Event along with three classmates: Takumi Sakagami, Natsuki Nitō, and Daiki Tasaki. The group becomes her outlet to express herself despite the silence. The plan is to turn her story into a school festival performance.
When:high school Where:school, homeroom/committee room
- 5
Jun meets Takumi and asks for a song
When she goes to reject the position, Jun hears Takumi singing and is captivated. She then shares her past with him via her phone and asks him to turn her words into a song. This moment reveals that singing may bypass her silence.
When:first meeting Where:committee room
- 6
A school festival musical is planned
The class decides to stage a musical for the school festival based on Jun’s experiences, framed as a fairy tale. They agree to tell the story through songs and performances. This becomes the central project that binds the group.
When:planning phase Where:classroom/rehearsal space
- 7
Daiki’s fallout and Jun’s intervention
Daiki has a falling out with his teammates, causing friction within the group. Jun intervenes to mediate, which triggers another stomachache, but the moment helps strengthen their bonds as they move forward with the project.
When:early rehearsal Where:rehearsal space
- 8
Love triangle grows with misunderstandings
Misunderstanding grows when Natsuki believes Takumi’s concern for Jun means he has romantic interest in her. Natsuki tells Takumi she will cheer them on, despite her own feelings for him.
When:planning phase Where:school
- 9
Reconciliations and new feelings
Daiki makes amends with his teammates, and as they spend more time preparing, Jun begins to develop feelings for Takumi while Daiki starts to feel something for Jun. The group grows closer as their performance nears.
When:preparation Where:practice space
- 10
A late-night revelation and overheard truths
On the night before the musical, Takumi asks Natsuki about the boy she is dating, and she reveals it is Takumi, then accuses him of loving Jun. Takumi denies being in love with Jun and regrets not expressing his feelings to Natsuki in middle school. Jun overhears their conversation.
When:night before performance Where:school grounds
Show the other 5 events of The Anthem of the Heart Hide the last 5 events
- 11
Jun runs away to the truth behind the curse
Heartbroken, Jun runs away and encounters the fairy egg, who reveals that she has worsened the curse by trying to convey her feelings for Takumi. The realization deepens her fear and alienation from her voice.
When:night before performance Where:somewhere outside
- 12
The confrontation at the shut-down love hotel
Takumi finds Jun at the now-shut-down love hotel, and to his surprise she can talk normally. She lashes out at him, and he explains that her voice was blocked by fear, not the fairy egg. He lets her vent until she’s satisfied, and Jun confesses her feelings for him, only to learn he is still in love with Natsuki.
When:night before final performance Where:shut-down love hotel
- 13
A resolve to perform and a race to the stage
This revelation motivates Jun to perform in the musical despite the heartbreak. Jun and Takumi rush toward the school, arriving just in time before the final scene to enact the performance.
When:immediately before final scene Where:school
- 14
The final performance and understanding
Jun sings to convey her feelings to her mother, who finally understands what she has been through. The fairy egg was nothing more than an imagined crutch, and Jun begins to open up her heart as she heals.
When:final scene Where:school festival stage
- 15
Ending reconciliations
As the musical ends, Takumi and Natsuki reconcile their relationship, while Daiki confesses his feelings to Jun. The group parts on a hopeful note as Jun steps forward with her voice restored.
When:end Where:school
Who Are the Main Characters in The Anthem of the Heart?
5 characters, among them Jun Naruse (Kyoko Yoshine), Takumi Sakagami (Kento Nakajima) and Natsuki Nitō (Anna Ishii): who each one is and the part they play in the story. Every profile links to the actor’s page.
- JN
Jun Naruse (Kyoko Yoshine)
Played by Kyoko Yoshine
Jun is a once lively girl whose words become sealed after a childhood trauma, leaving her unable to speak and causing stomachaches when she tries. She is perceptive, sensitive, and deeply empathetic, using singing as her primary means of expression. Her journey centers on opening up to her mother and friends and learning to trust again.
- 🎭 Introverted
- 🗣️ Silent but expressive
- 🎵 Musical potential
- 💪 Resilient
- TS
Takumi Sakagami (Kento Nakajima)
Played by Kento Nakajima
Takumi is a shy, music-loving student who signs up for the school project and helps convert Jun's feelings into a song. He is practical and observant, and his own unspoken feelings complicate his relationship with Natsuki. His growth comes from learning to voice his thoughts and support Jun.
- 🎭 Introverted
- 🎶 Music-minded
- 💡 Creative
- NN
Natsuki Nitō (Anna Ishii)
Played by Anna Ishii
Natsuki is a confident cheerleader and top student who harbors feelings for Takumi while currently having a boyfriend. Her outward poise masks a complicated love life, and she must navigate honesty and loyalty as the group works toward their musical.
- 🎀 Popular
- 💬 Direct
- ❤️ Loyal
- DT
Daiki Tasaki (Kanichiro Sato)
Played by Kanichiro Sato
Daiki is a former baseball star sidelined by a broken elbow, who clashes with teammates before making amends. He develops feelings for Jun, creating tension within the group, but his growth emphasizes teamwork and redemption.
- 🏅 Athletic
- 💔 Romantic
- 🤝 Loyal
- KJ
Kazuki Jōshima (Yoshiyoshi Arakawa)
Played by Yoshiyoshi Arakawa
Kazuki is Jun's homeroom teacher who signs her up for the community outreach event and acts as a steady mentor. He fosters collaboration and supports the students as they transform their experiences into a musical.
- 🎓 Teacher
- 🧭 Guiding
- 🤝 Supportive
Where and When Is The Anthem of the Heart Set?
The Anthem of the Heart is set in Castle on the Hill (Love Hotel), High School and Japan (Present-day Japan). Here is why the time and place matter to the story.
When
Present-day Japan
The narrative moves between Jun's childhood memories and her high school years, placing the events in a modern, everyday context. The castle-love hotel and the school environment anchor the plot in current times, while the characters' concerns—family, friendship, and self-expression—reflect contemporary teen life.
Where
Castle on the Hill (Love Hotel), High School, Japan
The story centers on a hilltop castle that functions as a love hotel, a key backdrop for Jun's childhood trauma and family conflict. The action alternates with scenes at her high school and a school festival, grounding the drama in contemporary Japanese youth culture. This setting juxtaposes a fairy-tale image with harsh real-life consequences, driving the emotional arc of the characters.
- 🎭 School life
- 🏰 Castle setting
- ❤️ Family drama
- 🎶 Music backdrop
What Are the Themes of The Anthem of the Heart?
4 ideas the story keeps returning to, among them Voice, Love and Identity.
-
01
Voice
Jun's muteness gradually gives way to a voice through singing, reframing communication as an act of art rather than speech. The film treats song as a direct route to emotion, allowing Jun to express what words cannot. The 'curse' becomes a catalyst for personal growth and resilience.
-
02
Love
Romance and friendship intertwine as Jun, Takumi, Natsuki, and Daiki navigate unspoken feelings and misunderstandings. Relationships are tested by jealousy and honesty, but music acts as a bridge that brings people together. The musical project becomes a vehicle for emotional truth and connection.
-
03
Identity
Jun confronts the narrative she has built around her condition, moving from self-blame toward self-acceptance. The imagined fairy egg becomes a symbol of internal myths; the story invites viewers to distinguish fantasy from real fears. Through time with friends and family, Jun discovers who she is beyond her past.
-
04
Music
Music serves as the glue that binds the group, transforming personal pain into collaboration. The school festival becomes a turning point where Jun can finally share her voice on stage. Through songwriting and performance, the characters learn resilience, trust, and belonging.
What Kind of Film Is The Anthem of the Heart?
Hopeful in tone, with steady pacing and a straightforward story, going by the plot summary.
- Tone
- Hopeful
- Pacing
- Steady
- Story
- Straightforward
- Intensity
- Medium
- Ending
- Happy
A heartfelt and hopeful coming-of-age story that balances the melancholic weight of past trauma with the uplifting journey of a girl learning to express herself through music and friendship.
- hopeful
- reflective
- sentimental
- cathartic
- youthful
- melancholic
- coming of age
- trauma
- finding your voice
- high school life
Content notes: infidelity, emotional trauma, family conflict.
Quiz
How well do you remember The Anthem of the Heart? Test yourself on the story.
