A rural widow sends her only son to Tokyo to receive a better education. Years later, she visits him and finds he has become a night school teacher struggling to support his wife and son.

Chōko Iidaas Tsune Nonomiya
Shinichi Himorias Ryosuke Nonomiya
Masao Hayamaas Young Ryosuke
Yoshiko Tsubouchias Sugiko
Mitsuko Yoshikawaas Otaka, Ryosuke's neighbour
Tomio Aokias Tomibo, Otaka's son
Chishū Ryūas Okubo, Ryosuke's teacher
Tomoko Naniwaas Okubo's Wife