Sandglass of Summer Colors

Synopsis

Determined to confess his feelings to the seemingly untouchable Serizawa Kaho during summer break, Makimura Koutarou has his plans disrupted on the eve of his confession by a mysterious girl. This chance meeting catapults him into the future, where he discovers a devastating truth: Kaho-chan is not only his girlfriend but has also perished in a tragic accident. Driven by this revelation, Koutarou returns to his own timeline with a singular mission to alter the future and save the girl he loves.