The Anime Lad
Takaki and Akari are close classmates until Akari moves to another region because of her family. They continue by mail, using paper to maintain what school once made easy. Then Takaki learns that his own family will move as well, so he plans to see her again. Geography has entered the friendship without an invitation.
Super Eyepatch Fox
Childhood friends Takaki and Akari are separated by a family move. Letters keep them connected until another move threatens to widen the distance. Takaki decides to meet her while he still can. Time passes, contact becomes harder, and shared memories carry more weight than either expected.
Gigguku
Takaki and Akari go from sharing a classroom to relying on letters because her family moves away. Then his family is set to move too. Suddenly one meeting has to push back against maps and time. The film makes that simple problem feel enormous because nothing magical caused it. Life just keeps placing more distance between two people who still remember!
Father's Basement
The film is openly committed to yearning, and viewers resistant to melancholy will notice every careful push. Its premise stays grounded. Two childhood friends write after a family move, then face another separation and the slow fading of contact. No villain is required. Time and geography create enough pressure on their own.