5 Centimeters per Second

Takaki and Akari, two very close friends and classmates, attended elementary school together. One day, they cannot be together anymore because of Akari's family. Their plans to attend the same middle school are now shattered. The two continue to keep in touch via mails. However, as time goes by, the distance between the two grows larger and larger, making the possibility for them to meet again almost impossible. What fate awaits Takaki and Akari, and will they be able to meet again?