A boy meets a girl who has spent her whole life inside four walls, and neither of them knows this moment will rewire everything they thought they wanted. The romance isn't a subplot, it's the reason the movie exists, and it earns every moment of tenderness by refusing to treat her disability as a plot device or inspiration porn. What destroys you isn't the setup; it's watching two people discover that love means letting someone risk getting hurt, and the terrifying choice to say yes anyway.

Tsuneo Suzukawa is a university student who loves diving and marine biology, and he works several part-time jobs to save up for study overseas. One night an accident brings him face to face with Kumiko, a young woman who uses a wheelchair, rarely leaves her home, and insists on being called Josee. She strikes him as rude at first, but her grandmother talks him into becoming Josee's paid caretaker, and he accepts for the extra money. Her bossy manner wears on him until he tries to quit, only to learn how badly she longs to see the world outside. Changing course, he sets out to explore it with her. Drawn to each other, the two come to see that what connects them may help each of them chase their own dreams. The film is a romantic slice-of-life drama adapted from a short story by Seiko Tanabe.