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One Song, One Life

“One Song, One Life” is a rhythm adventure game where the music and story change based on the notes you hit. Take control of Sumire Kirishima, a girl striving to become the ultimate net artist and perform alongside her idol. Your performance will shape her destiny—one song, one life.

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Notes
Latest Contributor: IGF TeamEdit notes
Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is One Song, One Life self-published or published by LOVE ANNEX CO., LTD and G-MODE?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is One Song, One Life and LOVE ANNEX CO., LTD and G-MODE funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for One Song, One Life and C-Route?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.

Media

8 items

About the Game

“One Song, One Life” is a rhythm adventure game where your performance changes both the music and the story.
Every note you hit determines the path of a girl chasing her dream of becoming the best net artist and standing on the same stage as her idol.

You’ll play as Sumire Kirishima, a 19-year-old girl from Tokyo. Raised by her father after her parents’ divorce, Sumire is talented but selfish—willing to put everything on the line for her goals, even at the cost of others.

As she climbs the ladder of the music world, she’ll face temptation, manipulation, and betrayal.
But don’t worry—no matter how deep she falls, remember:
Life itself is just one song.

Characters

Sumire Kirishima
Age: 19 / Lives in Tokyo
Raised as a sheltered daughter by her father after her parents divorced.
Ambitious and strong-willed, but often self-centered and lacking in teamwork.

Game System

  • Tap notes in rhythm with the song to build your score!

  • Choose your path when “decision notes” appear—your choices shape the story!

  • Your performance determines both the music and the scenario that unfold!

  • Each song represents a lifetime—see where Sumire’s story ends!

  • Miss too many notes, and it’s game over!

Lots of Event CGs

Enjoy beautifully illustrated scenes depicting Sumire’s rise and fall.

About Streaming

Streaming and monetized videos are welcome!
Please include the Steam URL in your video description.
If that’s difficult, a verbal mention during your broadcast is also fine.