In a Tokyo shrouded in endless rain, a young man named Hodaka escapes from his home on a remote island and seeks his destiny in the big city. Adapting is not easy; the capital is chaotic and full of challenges. But luck smiles upon him when he meets Hina, an enigmatic girl who possesses an extraordinary power: she can manipulate the weather. Her unique ability brings sunny and bright days, quickly turning Hina into a sensation, awakening hope and joy in the hearts of those around her.
Over time, Hodaka becomes Hina's assistant, helping her monetize her talent, but as her sunny days multiply, the cost of this magic becomes evident. The atmosphere of the sky begins to change drastically, leading to unexpected and dangerous consequences. As the relationship between Hodaka and Hina deepens, moral dilemmas arise, and the weight of the decisions they must make becomes palpable.
In a world where the weather reflects the mood of its inhabitants, the story becomes a beautiful and heartbreaking exploration of love, responsibility, and sacrifice. Are they willing to face the storms for each other's sake? The film takes us on an emotional journey, where human bonds and the forces of nature intertwine in surprising ways.