Dear Asuka and My Unborn Child... 1982

Directed by Ryō Kinoshita

A doctor who died at a young age due to the metastasis of a malignant tumor to the lungs after cutting his right leg below the knee due to osteosarcoma. The title "Asuka" is the name of the eldest daughter, and "Unseen child" is the child whose wife was pregnant at the time of her death.