- It tells the story of a news reporter, and his wife Chie, who is a music teacher, was diagnosed with breast cancer. After she gave birth to a daughter Hana, she had her breast cancer recurrence when her daughter turned nine-month-old.
For the rest of her counted life, Chie considered what she should leave to her child. She decided to pass on her housework abilities, such as making meals or taking care of the family, which can help the child to stay alive in any extreme environments.
Suffering from disease, Chie continued to teach Hana all kinds of housework, including feeding the dog, walking, washing, cooking, eating breakfast, brushing teeth, practicing the piano, cleaning the toilet, going to the kindergarten by herself, arranging clothes, organizing closet, and preparing for dinner since the age of five. Even when Hana was chopping with knife, Chie did not help because she believed that her daughter can help herself as long as she is healthy in the future regardless where to live.