Hasebe Yasuyuki is living his life carelessly alone in his apartment, until one day, he jumps from the top of a building escaping a street gang and injures his spinal cord. And the doctor tells him that he can't walk anymore. His mother, Haruko, hurries to the hospital for her son, however Yasuyuki is on bad terms with her, so he asks her to leave him alone. There he meets an ill kid in the hospital named Ishii Daisuke who is living his life positively, and the store staff Katou Kumi, who always smiles even though she had a sad past he gains confidence and decides to start his rehabilitation. After Yasuyuki is discharged from the hospital he starts relying on everybody everywhere, so he falls into despair and starts thinking of committing suicide seeing no future for himself.
The leading characters in both movies are people who take what they have for granted and thus act accordingly. Upon being struck by disaster in the shape of an illness/handicap, they both decide to not even bother trying to live anymore. They are both helped by another sick person, a child, that makes them want to give it their best to prove that things will be all right.