This is a story of love between a society girl and a yakuza boy. Mami lives an ordinary life in Tokyo, being with her friends and studying. Her biggest interest is ladies hats. She is rather well off, as her father is the ambassador of Japan in Spain. One day when she is out driving, she is attacked by a group of yakuza, but is saved by the honorable yakuza Jiro. This will change her life forever.
Sachiko is the 17-year old daughter of radiotherapist Professor Oshima. After exposure to radiation in the hospital, she develops leukemia. As if that was not enough trouble for one lifetime, discovers that Oshima is not her real father, and that her boyfriend is really her half brother.
Adaptation of Seicho Matsumoto's novel of the same name.
