Saeko is abnormally attached to her older sister, Yumi. When Yumi becomes engaged to Arikawa, Saeko schemes to separate the two. She seduces Arikawa who then becomes confused over his attraction to both sisters.
Mari Tanaka
Keiko Tsuzuki
Tomoko Katsura
Kibaji Tankobo
Akemi Yamaguchi
Keisuke Yukioka
Toshihiko Oda
Hidetoshi Kageyama