Relatives gather from afar in wintery Ashibetsu upon the death of patriarch Mitsuo. A mysterious woman named Nobuko suddenly shows up. Her appearance gradually exposes wartime secrets and Mitsuo's unknown past.

Tōru Shinagawa
as Mitsuo

Takako Tokiwa
as Nobuko

Yumi Adachi
as Ayano

Takao Itō
as Kunio Ohno

Saki Terashima
as Kanna Suzuki

Hirona Yamazaki
as Kasane Suzuki

Natsuki Harada
as Ryoko Takahashi

Yutaka Matsushige
as Haruhiko Suzuki

Shunsuke Kubozuka
as Akihito Suzuki

Tomoka Shibayama
as Setsuko Suzuki