After transferring to the same elementary school, Takaki and Akari become fast friends, bonding over the constant upheaval of moving from town to town. Just as their feelings for each other start to blossom, their shared happiness comes to an end when both of their families are forced to relocate. As the seasons change, Takaki and Akari begin to wonder if they will ever be able to see each other again, and share their secret feelings.