5 Centimeters Per Second
Takaki Toono and Akari Shinohara, two very close friends and classmates, are torn apart when Akari’s family is transferred to another region of Japan due to her family’s job. Despite separation, they continue to keep in touch through mail. When Takaki finds out that his family is also moving, he decides to meet with Akari one last time.
As years pass by, they continue down their own paths, their distance slowly growing wider and their contact with one another fades. Yet, they keep remembering one another and the times they have shared together, wondering if they will have the chance to meet once again. Summary from My anime list.
Hoshi no Koe
Hoshi no Koe, using full 2D and 3D digital animation, is a story of a long distance love and mail messages between a boy and girl. Set in 2046 after the discovery of the ruins of an alien civilization on Mars, man has been able to make leaps in technology and is planning to send an expedition into space in the next year. Nagamine Mikako and Terao Noboru are junior high school students. However, while Noboru will be entering senior high next winter, Mikako is selected to join the space expedition. Summary from My anime list.
Toki wo Kakeru Shoujo
Makoto Konno is in her last year of high school, but is having a hard time deciding what to do with her future. In between enduring the pressure of her teachers and killing time with her best friends, Makoto’s life suddenly changes when she accidentally discovers that she is capable of literally leaping through time.
Toki wo Kakeru Shoujo follows Makoto as she plays around with her newfound power. However, she soon learns the hard way that every choice has a consequence, and time is a lot more complicated than it may seem. Summary from My anime list.