Ainoha and Yon meet in a deserted beach. Both have paused their lives and have escaped to an island far from everything they know. A film like love will grew between them with its own introduction, core and denouement; a summer love they do not want to forget once autumn comes and they return home by their own. To keep the memories of their story alive, Ainhoa and Yon decide to send each other a postcard for a whole year in order to find out if what they have felt in the island lasts or...