Touko Fukami spends her final high-school summer at Kazemichi, the café where she and four close friends, Sachi Nagamiya, Yanagi Takayama, Yukinari Imi, and Hiro Shirosaki, gather in the glassworking town of Hinodehama. When transfer student Kakeru Okikura arrives claiming he can hear voices from the future, and one of those voices has led him to her, Touko starts noticing fragments of what looks like her own future breaking into the present. This light novel retells the 2014 Glasslip anime, shifting into Yukinari's and Yanagi's points of view.