Chizuko's Younger Sister

Follows two sisters, one clumsy and ignored, the other a perfect child. After the latter dies in an accident, she returns as a ghost to guide her little sister.
The Kitao family is coping with the loss of the eldest daughter, Chizuko, who was killed in a freak accident the year prior. When the other daughter Mika is suddenly in a dangerous situation, Chizuko returns as a ghost to save her; reunited with her sister, Mika begins spending time with Chizuko again.