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.