In 1987 Tokyo, a quirky and sensitive 11-year-old girl copes with a terminally ill father and stressed-out working mother while encountering various adults dealing with their own struggles.

In a Japan of the near future, the government program Plan 75 encourages senior citizens to be voluntarily euthanized to remedy a super-aged society. An elderly woman whose means of survival are vanishing, a pragmatic Plan 75 salesman, and a young Filipino laborer face choices of life and death.