Touko is shocked by the world she saw, and loses consciousness at the end of Kakeru's mother's performance. At Touko's request, Kakeru's mother plays once more, as she wonders about Kakeru's future. Meanwhile, at Kazemichi, Yukinari, Yanagi, Hiro and Sachi arrive all by coincidence.
Touko Fukami, having just moved from Tokyo, isn't sure she will be well there. By coincidence, she meets Kakeru Okikura at the station. He takes her to Kazemichi Cafe, where she meets Yukinari Imi, Yanagi Takayama, Sachi Nagamiya and Hiro Shirosaki. They set out to watch fireworks that night.
Sachi looks somehow relieved as she makes her confession to Touko and Hiro. Touko, having heard that Yanagi wanted to renew herself, also re-evaluates her relationship with Kakeru.
Touko feels uneasy around Kakeru because of the fragments of the future. Hiro invites her ahead of everyone else to Kazemichi Café.
Accompanied by Yanagi, Yuki goes to a track meeting for the first time since recovering from his injury. Meanwhile, Touko goes to Kazemichi Café by herself, and learns from Hiro's grandfather that Hiro was absent from the store, out on a date.
Touko learns that Yanagi had hurt her right leg during a lesson, and she rushes to the hospital. Meanwhile, Hiro visits Sachi's home to return a book that he had borrowed from her.
What if you hold the power to hear the voices or see fragments of images from the future? Would that be a good thing or a bad thing? Glasslip follows the life of Touko Fukami, an aspiring glass artist born from a glass artisan family. She enjoys her worry-free life in Fukui, save for the fragments of images that she sees on occasion. On her 18th summer, she meets the transfer student Kakeru Okikura at her school, and then again at her favorite café called Kazemichi together with all four of her friends. The voices from the future lead Kakeru to Touko, and his arrival disrupts her mediocre existence. All six of the friends must face their most unforgettable summer full of hope, affection, and heartache.