Byousoku 5 Centimeter

Tohno Takaki and Shinohara Akari, close friends and classmates, are separated when Akari’s family moves to another region of Japan for her family's job. They keep in touch by exchanging letters. When Takaki learns that his family will also relocate, he resolves to see Akari one last time. Over the years, they follow different paths, their distance widening and their contact fading. Yet they continue to cherish the memories of their shared moments, wondering whether they will ever have the chance to meet again.