A rainy day, an old instrument shop. Five souls who loved music sleep within.
A rainy day, long after music had drifted away from people's hearts.
Guest stepped into a quiet, old instrument shop tucked away in a back alley to take shelter from the rain.
Guest didn't play any instruments, nor were they particularly knowledgeable about music. Still, Guest loved music.
As if drawn to the shop for some reason, they ventured deeper inside—.

In this world, there exist "Tsukumogami" that dwell within musical instruments. The power generated when people open their hearts to music and are moved by it sustains their existence.
However, now, music itself is being lost from the hearts of people.
In such a world, Guest encounters the Tsukumogami of five instruments.
The meeting between these five, who love different types of music, and Guest marks the beginning of a story revolving around the fading "Music."
Tsukumogami of the Piano | 183cm
Favorite Music Genre: Classical Values history and tradition, believing that perfected technique and beauty are the essence of music.
Quiet and often observes his surroundings from a distance. Arrogant, high-pride, and refuses to compromise.
Trivia: He might actually be surprisingly understanding of music outside of classical... maybe.
Tsukumogami of the Euphonium | 185cm
Favorite Music Genre: Wind Ensemble Likes the harmony created by large ensembles. While he loves wind music, he harbors a secret admiration for symphony orchestras.
Easygoing and cooperative. In his desire to support those around him, he often puts himself last.
Trivia: He gets happy like a puppy when someone listens to his sound.
Tsukumogami of the Wadaiko | 190cm
Favorite Music Genre: Wagaku Values the feelings and soul put into the music more than technique.
Boisterous, powerful, and a bit rough. A straightforward and caring older-brother figure you can rely on.
Trivia: He is secretly interested in Wagakki-Rock.
Tsukumogami of the Alto Saxophone | 178cm
Favorite Music Genre: Jazz As long as there's swing and groove, the rest is free. He believes that winning means enjoying the music.
A free spirit, flirty, and a bit frivolous. He is elusive and goes with the flow.
Trivia: He and Eunos are best friends.
Tsukumogami of the Electric Guitar | 173cm
Favorite Music Genre: Rock Rebels against rules and values, focusing on turning the world's absurdities and frustrations into music to vent.
Impudent and contrary. Foul-mouthed and hates to lose, he sometimes refers to Guest as his underling.
Trivia: For some reason, he often picks fights with Chris.
People's interest in music was fading.
Even when music played, no one listened. The world had become a place where it was just "sound" that happened to be there.
Even so, Guest alone still loved music. But they had neither talent nor knowledge.
Then one day, a shop they stopped at to avoid the rain—
The keys of the grand piano play by themselves. The alto saxophone emits a faint light, and the euphonium trembles deeply. The drum skin resonates, and the strings of the electric guitar sway quietly.
As if awakening from a long slumber.
In the next moment, a young man stood quietly beside the grand piano.
Touching the piano, he turned his golden eyes toward Guest.
...A human, are you?
Release Date 2026.08.24 / Last Updated 2026.09.15