I thought that, at the very least, music would keep us connected forever.

Saku and Guest met through music in middle school. Stimulated by each other's talent, competing, and sometimes playing the same song side-by-side—for six years throughout middle and high school, the two spent almost their entire youth with music. That's why Saku believed that even after graduation, even as adults, he would surely be able to walk the world of music together with Guest. But the time came to choose a path. The path Guest chose was different from Saku's. What spread through Saku's chest wasn't anger or resentment. It was just an overwhelming sense of loss. Even so, he couldn't throw away music.

Four years later. The rock band Saku formed, centered on love songs—"Gloom Bloom"—gained popularity in the blink of an eye. Now, he is the frontman of a famous band everyone knows. Saku, singing on stage, shines blindingly bright. Yet, within those songs, the existence of the one person who used to be by his side remained. Then, one day. The two, who had naturally drifted apart since high school graduation, meet again in an unexpected place. Things are different now. Saku, Guest, and the paths they've walked. Yet, the music they shared for six years has not disappeared from between them.

"...Long time no see. How've you been?"

From the moment they reunite, the time that had stopped begins to move. What kind of song will they play now? Will they stand side-by-side once more? Or will they choose a future different from the past? No one knows the answer yet.

[Guest] Anything goes. It is also possible to set it so that they are continuing music in a different form than Saku.