Logo What's After the Movie

On-Gaku: Our Sound 2021

Three young, rebellious friends pursue a shared dream of rock stardom, despite lacking experience, resources, and even basic equipment. Driven by a desire to impress a friend named Aya and outmaneuver rival gangsters, they navigate a chaotic journey filled with humor and unexpected challenges. Their quest for musical recognition leads to wild adventures and a chance to express themselves in a truly unforgettable way.

Three young, rebellious friends pursue a shared dream of rock stardom, despite lacking experience, resources, and even basic equipment. Driven by a desire to impress a friend named Aya and outmaneuver rival gangsters, they navigate a chaotic journey filled with humor and unexpected challenges. Their quest for musical recognition leads to wild adventures and a chance to express themselves in a truly unforgettable way.

Does On-Gaku: Our Sound have end credit scenes?

No!

On-Gaku: Our Sound does not have end credit scenes. You can leave when the credits roll.

Meet the Full Cast and Actors of On-Gaku: Our Sound

Explore the complete cast of On-Gaku: Our Sound, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.


Ratings and Reviews for On-Gaku: Our Sound

See how On-Gaku: Our Sound is rated across major platforms like IMDb, Metacritic, and TMDb. Compare audience scores and critic reviews to understand where On-Gaku: Our Sound stands among top-rated movies in its genre.


Metacritic

86

Metascore

tbd

User Score

Rotten Tomatoes
review

100%

TOMATOMETER

review

77%

User Score

TMDB

73

%

User Score

Movie Insider

0.00/5

Take the Ultimate On-Gaku: Our Sound Movie Quiz

Challenge your knowledge of On-Gaku: Our Sound with this fun and interactive movie quiz. Test yourself on key plot points, iconic characters, hidden details, and memorable moments to see how well you really know the film.


On-Gaku: Our Sound Quiz: Test your knowledge of the film 'On-Gaku: Our Sound' with this 10-question quiz!

What instrument does Kenji first receive?

Awards & Nominations for On-Gaku: Our Sound

Explore awards

Discover all the awards and nominations received by On-Gaku: Our Sound, from Oscars to film festival honors. Learn how On-Gaku: Our Sound and its cast and crew have been recognized by critics and the industry alike.


48th Annie Awards 2021

Nomination

Best Animated Feature — Independent

Full Plot Summary and Ending Explained for On-Gaku: Our Sound

See more

Read the complete plot summary of On-Gaku: Our Sound, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.


In the midst of their troublesome teenage antics, three high school delinquents—Kenji, Ota, and Asakura—spend their free time indulging in lighthearted bullying, leaving a wake of uncertainty behind them. Their lives are a constant juxtaposition of chaos and indifference. When Ota jokingly suggests that they pay a visit to the rival gang over at Marutake High to settle old scores, Kenji, caught up in the moment, agrees. However, their excitement quickly fades as they realize they have no idea where Marutake actually is.

As the story unfolds, we find Kenji wandering the streets, lost in thought, when he unexpectedly witnesses a bold robbery. In a twist of fate, a passing musician hands him a guitar, using it to thwart the thief, and from that moment, the instrument becomes Kenji’s prize catch. Eager to share this newfound treasure, he brings it to his friends the next day. Thus begins their clumsy journey into the world of music, yet their lack of musical talent results in sounds that resemble discord rather than melody. They resort to stealing instruments from school, unwittingly discovering that Kenji’s newly acquired bass is the spark that ignites their audiovisual chaos.

The trio’s first and only audience member is Aya, who inquires about the name of their burgeoning band. Asakura comes up with the moniker “Kobujutsu”—a nod to ancient martial arts— which Kenji adopts without a second thought. Their venture into music is fraught with missteps and surprises, as they gradually stumble upon a sound that oscillates between unpleasant and irresistible.

Interwoven throughout the film are glimpses of the Mohawk-sporting gang of Marutake, led by Ôba, who mistakenly believes Kenji is orchestrating conflicts against his members. This misunderstanding sets off a series of escalating events, prompting Ôba to devise a plan to teach Kenji a lesson he won’t soon forget. As time progresses, Asakura uncovers a striking musical relationship between their band and Kobijitsu, a charming acoustic folk trio headed by Morita. Instead of confronting them directly, Kenji opts to experience their sound, leading to an enthralling encounter that grows mutual interest. In turn, Morita is captivated by the raw energy of Kenji’s band and invites them to perform together at an upcoming rock festival.

Eager but ultimately disillusioned, Kenji initially embraces the opportunity, but as practices unfold, boredom sets in. Despite Aya’s attempts to reignite his passion for music, she is unable to sway his indifference, leading to a brief altercation that sends her away, leaving Kenji alone and defeated.

On the festival day, drama ensues as Kenji finds himself confronted by Ôba’s gang. As tensions rise, Kenji shatters his bass and, in a moment of spontaneity, pulls out a recorder and begins to play, leaving Om and his gang in a stunned silence as they pursue him. Meanwhile, Kobujutsu had planned to perform separately as Kobijitsu, but Morita’s band takes the stage first. Just as their set is about to reach a crescendo, Morita’s guitar snaps, and they leave the stage in dismay. Seeing that Kenji is nowhere to be found heightens the anxiety for Ota and Asakura, who stand frozen on stage.

In a dramatic turn of events, Kenji bursts onto the stage, still under chase from Ôba’s gang, playing his recorder with fervor. Rejoining Kobujutsu, they combine their efforts, with Morita’s group joining in on the performance. The crowd becomes captivated, and as they finish, Kenji’s face lights up with the spark of renewed passion as he sings to the audience.

However, the following day, the mood shifts as Kenji reverts to his usual stoic self. In an empty classroom, Aya has a heartfelt conversation with him, where he reveals the band’s dissolution. Heartbroken, she is then taken by surprise when Kenji casually asks her if she would like to go to Disneyland with him. Observing this interaction, Ota leaves swiftly, turning to Asakura with thoughts of reuniting the band, convinced that Kenji would likely be on board by the end of the day.

Uncover the Details: Timeline, Characters, Themes, and Beyond!

Watch Trailers, Clips & Behind-the-Scenes for On-Gaku: Our Sound

See more

Watch official trailers, exclusive clips, cast interviews, and behind-the-scenes footage from On-Gaku: Our Sound. Dive deeper into the making of the film, its standout moments, and key production insights.


ON-GAKU: OUR SOUND [Subtitled Trailer, GKIDS] - Coming Soon

On-Gaku: Our Sound [Official Trailer, GKIDS] - In select theaters Dec. 11

© 2025 What's After the Movie. All rights reserved.