One Song, One Life Demo

This is a demo version of "One Song, One Life."

You can play the opening scene and a portion of the main game.

It includes 10 songs.

*Gallery mode and save mode are not included, so you cannot "resume from the middle of a route." ("Retry" is possible.)

About This 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.