Hourglass of Summer
夏色の砂時計 , Hourglass of Summer Colours, Natsuiro no Sunadokei
Makimura Koutarou has made up his mind: during summer vacation, he is going to confess his love to the seemingly unapproachable Serizawa Kaho. But on the night before, he runs into a strange girl, an encounter that throws him into the future. There, he learns that not only has Kaho-chan become his girlfriend, but she has also died in a tragic accident. Returning to his own time, Koutarou sets out to change the future and save his love.
