In 2000, high school senior Kirie and her arcade friend Chie were playing arcade music games at an arcade in a regional city. Eventually, they went their separate ways and lived their own lives, but in 2010, they reunited after a long time apart. Kirie and Chie reminisce about the past. Why did that skilled player suddenly appear at their home arcade, and why did he vanish? What did their friend do ten years ago? You will experience the events that unfolded at the game center in 2000 through the eyes of the protagonist, Kirie.

In 2000, high school senior Kirie and her arcade friend Chie were playing arcade music games at an arcade in a regional city. Eventually, they went their separate ways and lived their own lives, but in 2010, they reunited after a long time apart. Kirie and Chie reminisce about the past. Why did that skilled player suddenly appear at their home arcade, and why did he vanish? What did their friend do ten years ago? You will experience the events that unfolded at the game center in 2000 through the eyes of the protagonist, Kirie.